Rheem natural gas water heater installed about 5 years ago has begun to fail every 4 days or so it needs to be re-ignited manually. Works fine again for several days but inevitably will cease again heating the water and need restart procedure. The flame when observing seems to turn yellow periodically and I hear what sounds like moisture dropping on the burner area. I have cleaned and vacuumed out the igniter space underneath several times, which may extend the timeframe for the next occurence, but not a long term fix. Help?

SOURCE: have a rheem central air conditioner heater. I

gas valve could be clogged it has a screen in the side of the inlet, check this first if not it could be the gas valve itself,, make sure the gas valve is turned on also, sometimes people turn them off and for get the handle should be in line with the pipe not across the pipe

SOURCE: the water heater will cycle 5-6-7 times with no

there is a screen around the bottom of the unit? if so take it off and clean it,, does this unit have a self ignitor, or is it piliot? make sure your flue is clear so the unit is not over heating,, make sure on the power vent that the filter is clear also,, does the fan come on before the gas ignites, if not the circuit board is going bad the fan should start first to omit the gas fumes

snap101

• 117 Answers
• Posted on Jul 29, 2009

SOURCE: Tankless Paloma NG hot water heater shuts down

have you checked the error codes on the heater?
you can do this by powering off the controler and pressing the up and down keys for a few seconds. this should take you into the diagnostics mode scroll using the up and down keys till you find the one that has the letter E on it and that will give you the last 8 error codes write them down and get back to me

SOURCE: I am having the same problem as posted by jek01 on

Remove power source from the unit. If remote control is installed; remove cover and lift the control wires on the terminal...can be accomplished from either end.

Restore power and see if unit functions normally.

Contact Paloma/Rheem customer (800-432-8373) support and notify them IF you are getting a code "76" error. Rheem has recently extended the warranty on the "Burner Control Assm."; which is your problem. The C4-C8 portion of the error code, is where the unit stops the ignition process...burner fails to light, or gives you intermittent hot water. In either case, contact customer support.

If this helps, please indicate so.
Mike
[email protected]

SOURCE: I have a 2 year

Hi,

The flame sensor is bad....and it is not sensing that the flame has lit....

Some models have a separate flame sensor and some use the ignitor to sense the flame...

If it has a separate sensor then clean it with a soft cloth... if it is the ignitor then the ignitor is bad...

heatman101