Navien water heater dhw wait

Navien service. It will say post purge. Then DHW wait then stand by. Contractor's Assistant: Do you know the model of your Navien HVAC unit? How old is it? Its brand new. Contractor's Assistant: How long has this been going on with your Navien unit? What have you tried so far? Just got installed

Replacing an old water heater can help ensure that you always have enough hot water in your home, and it might also save you money on your income taxes. The Internal Revenue Servic...I have a Navien DH240 combi unit that has intermittent DHW, always hot water for the first 10 minutes or so when taking a shower, the DHW is set @ 120 but it seems to rise above that and maybe or maybe not a 30E shows up and the unit shuts down indicating a from what I read a exhaust flue above 65 degrees C, unfortunately I am waiting on the ...Navien's NPE-240A2 condensing tankless water heater for commercial & residential applications uses high-efficiency technology to provide endless hot water. ... DHW Capacity. Model: NPE-240A2: Natural gas: 13,300 - 199,900 BTU/h (3.897 - 58.571 kWh) ... Details about our residential warranty for Navien's NPE series tankless water heater, ...10.6 Maintenance 10.7.3 NPE-180A/240A Pump P-Q Curve The Navien NPE-180A and NPE-240A water heaters that are used in the DHW/heating systems should be properly maintained and flushed on an annual basis. Please see the NPE Water Heater Service Manual for more details regarding annual servicing and maintenance.Product Downloads > NPE-2 Installation and Operation Manual. Download file. Email file. Copy link. Home. Close. Navien's water heaters, boilers, hydro-furnaces & water treatment solutions provide innovative high-efficiency technology for residential & commercial projects.

Here are the steps to drain the unit: 1) Turn off the power supply and gas supply to the water heater. 2) Locate the drain valve on the bottom of the unit. 3) Connect a hose to the drain valve and place the other end into a suitable drain or outside area. 4) Open the drain valve to allow the water to flow out.Water Heater; CH-240; NAVIEN CH-240 Manuals. Manuals and User Guides for NAVIEN CH-240. We have 6 NAVIEN CH-240 manuals available for free PDF download: Service Manual, ... Domestic Hot Water Outlet Collar. 140. 9 Components Diagram and Part List. 141. Case Disassemble. 141. Burner Disassemble. 143.Navien Resale Policy - Consumer purchases through the internet or other e-commerce channels shall void Navien's warranty. >> Warranty Terms . Navien's water heaters, boilers, hydro-furnaces & water treatment solutions provide innovative high-efficiency technology for residential & commercial projects.Navien Announces First HVAC Product During Virtual Launch Event. Find an Installer. Call us: 1-800-519-8794. MEX/LATAM Spanish English (Canada) French (Canada) Navien's water heaters, boilers, hydro-furnaces & water treatment solutions provide innovative high-efficiency technology for residential & commercial projects.a global leader in high efficiency water heaters and boilers. Whether you need an endless supply of hot water, efficient home heating or both, Navien has the perfect energy efficient solutions. Navien offers the industry's most advanced condensing tankless water heaters, condensing boilers and the first combi-boilers strong enough to support ...

high efficiency Condensing Heating Boiler. 97.5% TE Industry Leading Thermal Efficiency. Patented stainless steel fire tube heat exchanger. 160 PSI maximum operating pressure. Advanced controls with intuitive 7" color display. Up to 15:1 TDR (turndown ratio) BAS communication capability. Common vent up to 4 and cascade up to 32 units.DHW SS flat plate heat exchanger 5.4 GPM @ 70°F temperature rise. One of the highest flow rates in the industry. New mixing valve. New easy access 3-way valve. New flow adjustment valve. Water feed valve. Expanded DHW capability For increased domestic hot water flow demand, the NCB-H can be cascaded and common vented with up to 15 of …Purchasing a Navien tankless water heater is only part of the financial equation. Several additional factors can inflate your overall investment: Installation Costs. While the unit might cost up to $2,300, installation can drive your total expense from $4,700 to $8,300. This includes variations in installation quality, from basic to premium ...Navien was first to offer dual stainless steel heat exchangers, rather than copper, which extends the life of the unit by resisting corrosion. Energy Star highest rated gas water heater The NPE is the most energy efficient* tankless water heater in the industry. Our condensing technology delivers performance up to 0.97UEF/0.99EF.The Navien NPE 240A is one of the most energy-efficient tankless water heaters on the market, and it's been certified by the Energy Star program. It provides plenty of hot water. The Navien NPE 240A has a flow rate of 2.4 gallons per minute, which is more than enough hot water for most households.

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NPE-180A2 premium features and benefits. 2" PVC venting up to 75 feet. Low exhaust gas temperatures allow use of PVC (including schedule 40 PVC), CPVC, polypropylene (rigid and flexible) and stainless steel venting saving time and costs. Vent Installation Detector (VID) for added safety. Dual Venturi for field gas conversions.The Intelligent preheating on Navien Water Heater is a self-learning process that you can enable by turning on the DIP switch on the front panel. Once you turn that DIP switch, the water heater software will monitor the flow demands over a 7 day cycle and recirculate the water from the following week based on water usage.Navien Water Heater Parts; Neutra-Safe; NTI -- NY Thermal, Inc. Nu-Calgon Chemicals; Oxbox: A Trane Brand; Panasonic HVAC Split Systems; PRO1 IAQ Thermostats; Raypak; Rehau ; ... Navien 30013685A DHW Flow Sensor . Replaces AASS9EXFS002B / BH1406005A / 30004800B For ASME Models. CH180-ASME CH210-ASME CH240-ASME. Product Reviews.No Water Flow. Dirty/clogged cold water intake filter, solenoid valve issue. Clean the filter/hire a professional. Flow Sensor Problem. Fan not spinning, damaged fan blades, damaged or faulty sensor, etc. Replace the flow sensor/hire a professional. Heater Constantly Running. Traditional storage unit operation.The water heaters at Lowe’s range in price from $159 for a tankless water heater from AquaPower to $5,879.75 for a 100-gallon natural gas water heater from American Water Heater Co...

Jul 2, 2020 · The water will start to get warm, then just go cold. The DHW is set to 112 degrees, but when checked, it now shows up to 170 degrees! The thermostat for the house heat is off, so it should not be getting nearly that hot, especially when I am not getting any hot water. I have been doing research all over, and at my wits end with this thing.Then DHW wait then. navien service. It will say post purge. ... our navien tankless water heater doesnt work, we get codes 03 andcode.002 ...Navien npe 249a2 installed in January 2023 and working fine until three weeks ago. Upon request for hot water, flow rate only reads 0.5 gpm even though...Navien NPE-2 Series, New NHW-A Series, & NPN Series high-efficiency tankless water heaters provide endless domestic hot water, all while keeping your utility bills low. A tankless water heater is a type of water heater that doesn't use a storage tank to heat water. Instead, hot water is produced only when you need it.CANADIAN DEALS! RINNAI TANKLESS - Prices have dropped and there are decent deals to be had now!. Our prices verses the exact same model at Homedepot.ca . RUR199iN - $2,899 - Nat Gas Compare at $3853 - SAVE $954; RUR199iP - $2,950 - Propane Compare at $3777 - SAVE $827 -- OUT OF STOCK ; RU199iN - $2,550 - Nat Gas Compare at $3094 - SAVE $544 ; RU180iP - $2,400 - Propane Compare at $3033 - SAVE $433The water heater is compatible with Navien's NaviClean, a magnetic boiler filter. It has a powerful flow rate of 10.2 gallons per minute at a temperature increase of 35 degrees Fahrenheit. However, it's quite heavy when compared to the NCB-240E. It weighs 145 pounds empty and 183 pounds with water inside.NPE-180A. Summary. ½ gas pipe capable up to 24′. Field convertible gas system. Ultra condensing efficiency. Dual stainless steel heat exchanges. Low NOx emissions (20ppm) SCH 40, 2″ venting up to 60′. Cascading capable.We recently moved into a new build 3 floor townhouse that is using the Navien NPE-240A for the water heater and have been experience many issues related to water. 1. Water pressure is very low at the shower faucet (ie. it was measured at about half the PSI it usually should be). 2. Water takes a long time to get to a hot temperature at …When a Combi-boiler is used for space heating, the heated water flows from the boiler to radiators, baseboard heaters or in-floor radiant systems that distribute heat throughout the home. Separately, water travels through a domestic hot water heat exchanger delivering endless hot water to the home’s faucets, showers and appliances.

Navien NPE-180A Water Heater. ½ gas pipe capable up to 24′. Field convertible gas system. Ultra condensing efficiency. Dual stainless steel heat exchangers. Low NOx emissions (20ppm) SCH 40, 2″ venting up to 60′. Cascading capable. NPE-Advanced.

Every time any hot water faucet in your home is turned on, you will be paying for the gas to heat that water even as the water flowing from the faucet remains 'cold'. The cold water flowing to drain while you are waiting for hot water to arrive, is water that had been previously heated. If for example the 4-minutes of flow to drain equals 8 ...I believe 'A'/'B' is where the SH hot water should flow from the boiler to the pumps and subsequently to my radiator zones. Then, 'C' is where the DHW flows. When feeling the 'C'/DHW pipe, when calling for DHW, it feels hot. When the thermostats call for SH, the nut shown by 'A' feels hot, but 'B' remains cool and does not heat up.traditional boiler systems. The highest energy efficiency in the industry. — up to 95% AFUE. Energy Star certified. Backed by the industry's strongest warranty. — 10 years on heat exchangers. Easy to use control panel. Longer lasting than traditional floor standing boilers. Elegant, clean appearance.May 31, 2023 · Your Navien tankless water heater can be scheduled to preheat the water in your supply lines through the control panel. The EZNav control panel has intuitive scheduling settings for Always On, Weekly and Intelligent Recirculation which learns the user's hot water usage pattern.Navien's NHW-160AI non-condensing outdoor tankless water heater for commercial & residential applications uses high-efficiency technology to provide endless hot water. ... Domestic hot water: 10,700 - 160,000 BTU/h (3.135 - 46.88 kWh) Efficiency ratings: Efficiency rating for NG & LP (UEF)Part Number: (30022163A) Residential Neutralizer V2 (1 unit) Part Number: (GXXX002212) Replacement Media. Part Number: (GXXX001323) PeakFlowS™ Anti‑Scale System. Part Number: (GPWC110001AC001) Navien's water heaters, boilers, hydro-furnaces & water treatment solutions provide innovative high-efficiency technology for residential ...NHW-A HotButton Add-On Controller Installation Manual. NHW-AE Recess Box Installation Guide. NPE Installation & Operation Manual. NPE User's Information Manual. NPE-2 Installation and Operation Manual. NPE-2 User's Information Manual. NPN Installation and Operation Manual. NPN User's Information Manual. NR-NP Total Operation and Installation ...Hello and welcome to JustAnswer! My name is***** a technician with over 10 years of experience, and I'll be assisting you today. Sorry to hear you're having issues with your water heater, however I am sure we can resolve your concern today, I will promptly reply to any responses from you the moment I am notified unless I am away from the site, in which case I'll reply as soon as I come back.How to reset navien tankless water heater?A short overview of who I am, Hello everyone, I'm Delphi. I am willing to help you find the solutions to your quest...Optional NPE-S2 recirculation valve. Designed for recirculation of domestic hot water in applications where a dedicated return line is not available. External pump neccessary not included. Part No. PFFW-001, NaviCirc Kit: 30022965A. External recirc pump and check valves not included.

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NPE-240A2 premium features and benefits. Low exhaust gas temperatures allow use of PVC (including schedule 40 PVC), CPVC, polypropylene (rigid and flexible) and stainless steel venting saving time and costs. Vent Installation Detector (VID) for added safety. Dual Venturi for field gas conversions.We now have a NR-240A unit and we were excited to have problems behind us. However, we have had repeated issues with the heat level of our domestic water. Each time I call Navien for help, they suggest my issue is related to debris getting into the flow sensor and preventing it from triggering properly. The process to take apart the fitting ...Error Code E407: Hot Water Outlet 1: Thermistor Open or Short. Navien error code E407 is a sign of a problem with the hot water outlet thermistor.Domestic hot water: 10,700 - 199,900 BTU/h (3.135 - 58.571 kWh) Efficiency ratings: Efficiency rating for NG & LP (UEF) 0.81: Flow rate (DHW) ... Details about our commercial warranty for Navien's NPE series tankless water heater and NHB series condensing boiler can be found here.Feb 23, 2014 · Ive seen what you describe. In domestic water heating mode, the closed side heating pressure increases, kicks off the relief valve and unit shuts off. after about two minutes it refills and restarts. Could be other issues but this happens a lot on the install of this unit by contractors that don't understand boilers.Jul 28, 2023 · The navien water heater may be shutting off due to a variety of issues, such as a malfunctioning thermostat or a blocked vent. When the water heater shuts off, it is important to troubleshoot the problem to prevent further issues. Navien water heaters are known for their efficiency and performance. However, it can be frustrating when your water ...Find brochures, manuals, guides, labels, specs, drawings, revits & certificates for Navien NPE‑A Series condensing tankless water heaters. Where to buy. Residential. Residential Products. Efficient and earth-friendly products designed for any size home. Overview. Tankless Water Heaters.Navien NHB boilers offer homeowners industry-leading turndown ratios, longer venting and cascading capabilities for greater installation flexibility, and easy-to-use integrated controls. Good for small & large homes. Low noise. Up to 15:1 turndown ratio. Built-in capability for multiple zones. Cascade up to 16 units.4BB Back to Back Kit for Navien NPE Series Water Heaters. Quick View Part #N30019042A Item #7300516 Mfr. Part #30019042A 4.9 out of 5 Customer Rating. Info Requires Certification. Points Call for Pricing Call for Pricing. Info Help For pricing information, please call 703-836-6526.View and Download Navien NHB H Series installation and operation manual online. NHB H Series boiler pdf manual download. Also for: Nhb-055h, Nhb-080h, Nhb-110h, Nhb-150h, Nhb-h series. ... DHW control 1. Supply water method 2. Page 109: Setting The Display Options Press the Back button ( ) to return to the previous Item Description screen or ...The unit is setup for DHW to use the internal recirc pump and an external recirculation loop. Assume the unit is set to "Weekly", and the current time is within the hours specified (e.g 6am to 10pm). The water temperature is set to 120 °F. The above listed parameters are set to their default values. ….

This is a combi-boiler for DHW on one side and heating the water for radiant floor heating on the other. CM3939 New Member. Messages 7 Reaction score 0 ... Navien NCB-240/130H Water hammer. kingtr; Feb 12, 2024; Plumbing Forum, Professional & DIY Advice; Replies 0 ... Water Heater Forum & Blog. Tankless Water Heater Forum. Terms and rules ...HVAC Technician: JHorvath M.H. You’re definitely getting error but we should be getting a code along with the error standby just means the unit is not calling for hot water right now. Is it giving you any other codes or numbers on the front? We tried resetting the unit? Ask Your Own HVAC Question. No still flashing. HVAC Technician: JHorvath M.H.The unit is setup for DHW to use the internal recirc pump and an external recirculation loop. Assume the unit is set to "Weekly", and the current time is within the hours specified (e.g 6am to 10pm). The water temperature is set to 120 °F. The above listed parameters are set to their default values.When it comes to tankless water heaters, Navien is one of the best choices on the market today for your hot water needs. This powerhouse brand was built to prov. Let’s explore some of the problems and their solutions you’ll find handy when troubleshooting Navien tankless water heater problems. Let’s explore some of the …Navien NPA is a tankless water heater series with a built recirculation pump, buffer tank and recirculation return inlet. Since your combi boiler is not equipped with an internal DHW circulation pump, you will need to add an external pump with the recirculation flow to return through the DHW cold water inlet. The flow rate through the NCB's DHW ...Noritz 13.2 GPM 300000 BTU 120 Volt Commercial Natural Gas Condensing Tankless Water Heater $ 4,299.00 Add to cart Rinnai 10 GPM Residential 180,000 BTU Natural Gas Interior Tankless Water HeaterNavien’s all-in-one, high efficiency combi-boilers combine endless hot water for showers, sinks, dishwashers & more with comfortable heating for your home.Navien NPE-180S. The Navien NPE-180S is one of the best tankless water heaters you can buy. It has a lot to offer, starting with its low maintenance and ease of installation. In addition, the Navien NPE-180S is highly efficient in both gas and electric models, helping homeowners save about 60% on their energy costs compared to standard storage ...Navien Inc. (Headquarters) 20 Goodyear Irvine, California 92618 Phone: 800-519-8794, 949-420-0430 Navien America Inc. (Branch Office) 325 Route 70 East Navien water heater dhw wait, To Troubleshoot cold water mixing with hot water. 1. Turn the unit off. 2. Close the isolation valves to the cold-supply and recirculation lines. 3. Open the pressure relief valve. If water comes out from the pressure relief pipe, this indicates that the issue is not with the unit but with the house's plumbing., By Eric Alvarez May 23, 2024. 2 Comments. This is a complete guide on Navien Tankless Water Heater Post Purge. From this guide, what you are going to learn: What is post purge? How to change post purge time. Difference between pre-purge and post-purge. How to bleed air on Navien Tankless Water Heater? So, let’s get started …, Both the radiant heat and the domestic hot water work correctly but my concern is that the machine room is super-warm all the time -- the room made is hot by the (uninsulated) heat-exchanger return pipe from the hot water tank -- it is _always_ very warm to the touch. ... Navien Tankless Water Heater (NCB-240E) Not Igniting Due to Low Flow Rate ..., Step 1: Annual Maintenance - Service your Navien tankless water heater at least once a year. Identify any potential problems and keep the unit in good working condition. Step 2: Flushing the System - Flush the system every year. Remove any mineral deposits or debris that may have accumulated., Clean the air filter. All Navien units (water heaters, combi-boilers and boilers) have inlet air screens inside the cabinet just below the air intake collar to prevent debris from being pulled into the blower, burner and heat exchanger assembly. Clean the condensate trap. The condensate trap is located at the bottom of the unit., Find brochures, manuals, guides, labels, specs, drawings, revits & certificates for Navien NPE-180S condensing tankless water heaters. Where to buy. Residential. Residential Products. Efficient and earth-friendly products designed for any size home. ... Download the new Navien mobile app! Apple iOS Google Android. NPE-180 Downloads., HVAC. Navien hydro-furnaces are highly efficient (97% AFUE) with a unique heat exchanger design that represents the latest advancement in home heating engineering. The variable capacity blower and modulating gas valve allow the NPF to operate from 15% to 100% capacity for both natural gas and propane applications, optimizing airflow and comfort ..., When a DHW (hot water) demand happens in a Navien combi boiler, the unit switches from space heating mode over to DHW mode. Referred to as DHW Priority, the unit will utilize the full capacity to heat the domestic hot water until the flow stops, providing endless hot water. While in DHW priority mode, the space heating is disabled., We would like to show you a description here but the site won't allow us., How to reset navien tankless water heater?A short overview of who I am, Hello everyone, I'm Delphi. I am willing to help you find the solutions to your quest..., New NFC-H highest heating and DHW performance ever built into one compact combi-boiler. Navien innovation, durability and proved fire tube technology has done it again. The new NFC-H has more heating and DHW capacities for today’s larger progressive homes. Navien continues to reinvent smarter ways to bring high efficiency home comfort to your ..., The NPE-240A2 unit comes with a built-in recirculation pump and a buffer tank. All it means is it keeps some water hot, about 1 gallon or so, inside the unit so that when hot water is requested from a faucet, it takes less time for it to come out. Additionally, the unit has a physical 2-way valve (inside the unit after removing the front panel ..., When a DHW (hot water) demand happens in a Navien combi boiler, the unit switches from space heating mode over to DHW mode. Referred to as DHW Priority, the unit will utilize the full capacity to heat the domestic hot water until the flow stops, providing endless hot water. While in DHW priority mode, the space heating is disabled., NCB-250/150H. Max HTG Input: 150,000 BTU/h. Max DHW Input: 210,000 BTU/h. Indoor wall-hung. Residential. View model. NCB-250/150H. Navien’s NCB-250/150H condensing combi-boiler for residential applications uses high-efficiency technology to provide heat & endless hot water., Professional Maintenance Tips for Navien Tankless Water Heaters. Scheduling Regular Inspections: Why Professional Check-Ups Are Crucial. Like a well-oiled machine, your Navien tankless water heater needs regular check-ups to keep it running smoothly. Think of it as giving your trusty steed a check-up before a big race., NPE-240A2 premium features and benefits. Low exhaust gas temperatures allow use of PVC (including schedule 40 PVC), CPVC, polypropylene (rigid and flexible) and stainless steel venting saving time and costs. Vent Installation Detector (VID) for added safety. Dual Venturi for field gas conversions., NaviCirc is a simple plumbing device that uses the existing hot and cold water lines to reduce the wait time for hot water at the faucet without the need for a dedicated recirculation return line. Designed and optimized for use with Navien NPE-A Series water heater models; Automatically blocks circulation when the hot water temperature within …, You should descale your Navien Tankless Water Heater once or twice a year depending on the water hardness. To descale a tankless water heater, you need to run a cleaning solution like vinegar to remove the gunk buildup. Read this article on Navien Tankless Water Heater Maintenance to learn the step-by-step descaling procedure., Step 12: Finally, test the water flow from your faucets to ensure that the flushing process was successful and that your Navien tankless water heater is functioning properly. Pro Tip: Regular Flushing Frequency. It is recommended to flush your Navien tankless water heater at least once a year to keep it in optimal condition., 0.81 UEF for all models. Slim unit with pin-to-pin design matches common tankless configurations for easy retrofit installation. NPN-Universal is the only non-condensing unit that can be used inside or outside (see NPN-E Series for outdoor installation) Strong residential and commercial warranties. NaviVent™ concentric 3" x 5" venting., The domestic hot water was good. (Our Century Boiler TWZ150 boiler supports a 40 gallon Century Boiler Mega-Stor indirect water heater; temperature control on it is set at 135.) I’ve tried higher HL settings with no change in heat going to the house radiators. However, when I raised the LL setting, I got more heat to the baseboard radiators., 10 Tips on How to Increase Temp on Navien Tankless Water Heater. 1. Locate the Control Panel. Locate the control panel or remote controller for your Navien tankless water heater. The control panel is typically located on the side of the appliance, while the remote controller is often found near a wall outlet. 2., On the DHW side, descaling may be performed anytime as the DHW heat exchanger will be isolated from the incoming water supply and outgoing hot lines. Without a service valve on the Domestic Water Inlet connection, it is likely the DHW heat exchanger has never been descaled., To reset your Navien tankless water heater, follow these step-by-step instructions: Locate the power button on the front panel of your Navien tankless water heater. Press and hold the power button for 5 seconds until the screen turns off. Wait for 10 seconds, and then press the power button again to turn the unit back on., The Navien itself is about as far away from the fixtures as possible. It's mounted outside close to the gas main in and replaced a tank water heater in the attic. With the external recirculation we don't have to wait for hot water very long, and haven't experienced any sandwiches, but I don't like using the cold line for recirculation., Replacing an old water heater can help ensure that you always have enough hot water in your home, and it might also save you money on your income taxes. The Internal Revenue Servic..., Navien 30007878A DHW Cold Water Filter. << Previous in Navien Combi / Boiler Series Parts. Next in Navien Combi / Boiler Series Parts >>. Price: $9.95. Item Number: BH1303035A. Manufacturer Name: Navien. Manufacturer Part No: 30007878A. Quantity: * Whole number only., Navien Tankless Water Heater---Well Pump Setting Thread starter JTCA; Start date Nov 1, 2010; Users who are viewing this thread. Total: 1 (members: 0, guests: 1) JTCA New Member. Messages 2 ... Hey, wait a minute. This is awkward, but... It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2 ..., To reset your Navien tankless water heater, follow these step-by-step instructions: Locate the power button on the front panel of your Navien tankless water heater. Press and hold the power button for 5 seconds until the screen turns off. Wait for 10 seconds, and then press the power button again to turn the unit back on., How to reset navien tankless water heater?A short overview of who I am, Hello everyone, I'm Delphi. I am willing to help you find the solutions to your quest..., Navien's NHW-199AI non-condensing outdoor tankless water heater for commercial & residential applications uses high-efficiency technology to provide endless hot water. ... Domestic hot water: 10,700 - 199,900 BTU/h (3.135 - 58.571 kWh) Efficiency ratings: Efficiency rating for NG & LP (UEF), The power went out and now my Navien water heater say DHW wait then DHW standby and not getting hot water. Contractor's Assistant: Im sorry to hear about the issue youre experiencing with your Navien water heater, but our HVAC Technician will be able to help you troubleshoot and resolve this problem. Have you tried resetting the water heater by ..., The status alternates between POST-PURGE AND DHW-WAIT. I noticed this about a week ago as I heard a vibration upstairs and it was the water heater blower running and now water was flowing or had been flowing in the house. I cleaned the intake screen and cycled power. The blower stopped but then it started running constantly again.