Question about Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF

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Blower comes on and heater don't - Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF

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Blower comes on then I am assuming no ignition attempt afterwards? If the blower ( Induced Draft Fan) is not being sensed by the safety pressure switch, ignition attempts are aborted until the fan is sensed. If there is a blockage in the vent system, ID blower or sense tubing itself, those would be the obvious starting points to check. If the pressure switch "makes" (closes) then your investigation should lead you to the ignition process. Is there a spark at the pilot burner (if there is one), Is the Hot Surface Ignitor glowing? Is the gas turned on? All can be checked visually.

Posted on Nov 13, 2009


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Posted on Jan 02, 2017


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I have Rheem Pvw50, 50 gallon water heater installed at home. For the past few days, there is a noise coming out of blower motor. What could be the reason?

Your water heat is at an age that I would recommend replacing the whole unit. That one cannot be too efficient and most likely has sediment built up on the bottom of it pretty bad.

Jan 25, 2016 | Rheem Water Heaters

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Noise blower motor

leave unplugged... water will stay hot.
Plug in for 1 hour to make tank of hot water


Jan 18, 2014 | Water Heaters

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Does the vent motor come on when you turn on a powervent hot water heater

`1) Copy following link to troubleshoot by type of gas control valve, blower motor links, pressure switch testing, and other professional resources:

2) Power-vent blower motor can go bad.
Plug motor directly into outlet, or turn on-off switch on, and see if motor works.
Check outlet for correct polarity, and for at least 80% of rated voltage.
Check vacuum switch. Blower creates vacuum, and the vacuum switch detect vacuum, and signals gas control valve that burner sequence can continue.
Gas control valve can also go bad. Wiring etc can go bad.

Feb 04, 2013 | Rheem 50 Gallon FVR NATGAS Water Heater...

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I have a Rheem PowerVent with PowerGlo ignition system; model#: 21VP50E-1A. It stopped working suddenly. I have electricity to the unit and gas also. The plumber said that the blower isn't working...

First off the unit model number that you listed has no power vent blower...was a separate one added???

Next... you really need to get a second opinion...that plumber trying to take you for a ride.. and charging way too much!!!

At the very least you should be able to just replace the blower unit...only and not both...for much less money....a straight change out should be very easy...

Find another quote or two even!!


Sep 22, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

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I have a reliance power vent heater model 8 40 navto . When the water temp called for the heater to work the solenoid started clicking and when it stopped the pilot flame was out and cannot be relit. The...

First suspect is always to clean combustion parts.
I don't have that specific manual, but assume unit has digital gas control valve thermostat.
As a general rule, the gas control thermostat activates the blower and turns on the gas, and controls flow of gas to pilot.

If the ECO is tripped, or there was FV event, or the gas valve thermostat is bad, or the combustion parts and tubes need maintenance and cleaning, then the pilot will not relight.
Open following link for older Reliance troubleshoot manual, plus some troubleshooting resources and illustrations:

Add a comment and say what you did to restore functionality.

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1 Answer

Air blower does not come on after taking a bath to dry jet plumbing. Blower does work if blower button is depressed.

water has to be a certain depth, and the dryer blower I think comes on much later,what do the directions say?

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