Question about Rheem 266K to 399K BTU Swimming Pool Natural Gas Heater ()

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I have a Rheem P-m336A natural gas pool heater. Last week, I had a bad leak in my upstream natural gas line. Piping upstream had to be replaced, but now the Rheem unit won't come on and heat up the pool. Does it have a pilot that has to be relit? Is it an automatic pilot? If so, What do I need to do to get it to relight. All other natural gas utilities in my home are working fine now except this one Thanks

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  • Rheem Master
  • 8,143 Answers

Yes pilot to be relit possible gas line to be bled

Posted on Aug 30, 2017


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Posted on Jan 02, 2017

  • 2992 Answers

SOURCE: pilot light won't stay lit after release of gas valve.tried few t

Most likely it's time to replace the thermocouple, the safety device that makes sure the pilot is lit. New thermocouples are cheap and you can find them at most hardware stores and the big-box places (Home Depot, etc.)

Here is a site with basic information to get you going.

Posted on Apr 08, 2009

SOURCE: Its a 6 year old gas water heater. It was working

Replace the thermocoupler.
Easy fix.

Posted on Jun 23, 2009

  • 718 Answers

SOURCE: My gas water heater (Rheem) is making noise, like

Stop wondering, replace the thing and your troubles will be over. Your troubles are inside the tank and not worth even giving it another thought. Go for it!

Posted on Oct 15, 2009

  • 82 Answers

SOURCE: Pilot lighting

1) Open the door on the bottom of the tank to show the burner. 2) Turn the valve to "pilot" and depress. 3) Light the match, (best if you have a candle/grill lighter), and follow the skinny copper tube from the valve to the burner inside (this is called the thermocoupler). At the end of it, you will see the pilot. 4) Once pilot is lit, keep valve depressed for a minute (this warms the thermocoupler, thus sending a signal to the valve saying the pilot is lit). 5) Let go of the pilot button (usually red). 6) If pilot stays on, put the door(s) back on and turn the valve to "on". You will hear/see the gas ignite when complete. Good luck!

Posted on Jan 24, 2010

  • 454 Answers

SOURCE: I have a Rheem 50 gal. natural gas water heater

The most common reason a pilot light will not stay lit is a bad thermocouple. How old is the water heater? If the pilot light will light, but then go out when you release the safety button, that is a sure sign the thermocouple is bad. You can buy a replacement thermocouple at your local home improvement store. There is a small chance that the control valve has gone bad, but that is highly unlikely.

Posted on Feb 23, 2010

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I have a Rheem water heater for a spa. Lately it's been intermitant whether it goes on not. Someone suggested that the gas company needed to install a lager meter/regulator as the heater isn't getting...

did the gas company check the pressure?
propane = "11" to 13" water collumn
natural gas = 3" to 4.5" water collumn

I have actually had the valve go bad, replaced, everything worked great.
also check the thermocouple. this is a cheap repair and the most common problem. if this doesn't solve the problem, then I would replace the gas valve. it is rare, but they do go bad. even had a bad one on a brand new water heater.

as far as water in the line, this too is very rare.

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