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Rheem P-M407A-EN-C Pool/Spa heater does not start. I get the CFH then SPK but the unit just stays in SPK mode and will not turn on. I can hear the sparking cycles. The unit is about a year old and woked great last season. This is the first time I tried it this year.

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  • rickspool
    rickspool Apr 04, 2011

    Is the gas valve open ?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

johnsonr1
  • 91 Answers

SOURCE: Rheem model p-m266a-en-c digital gas pool heater runs, shuts down

CFH is call for heat not sure what spk is, but will find out and let you know.

Posted on Aug 22, 2009

  • 1 Answer

SOURCE: Rheem model p-m266a-en-c digital gas pool heater runs, shuts down

So now we know what it stands for. Now how do we call for heat? Can we do this ourselves?

Posted on May 25, 2010

  • 760 Answers

SOURCE: I just purchased a home

They have good listings on their web site.
http://www.rheem.com/product.aspx?id=8B064EC5-B708-4821-9F2B-DEF3A2243F90
That link should be to your model. When you click on the link for your manual (installation instructions)l, if it doesn't download. Right click on the link, and select download
So what is the problem?

Posted on Aug 12, 2010

tbreeze47
  • 3083 Answers

SOURCE: I have a Raypack pool

Have you tried using a fine emory cloth to clean the ignition wire terminal? Sometimes oxidation builds up on them, and they play heck making contact. CFH is call for heat, and SPK is spark. Clean or replace the ignition wire good and see what happens. The clicking sound is probably the electronic ignition trying to spark.
Looked on the net, but couldn't find these codes, and noone reported any problems. It could be a temperature sensor- that is the cheapest thing to try first. If that doesn't fix it, it could be a faulty ignition unit.
Here is a good web blog of these systems, and may assist you:
http://blog.poolcenter.com/article.asp?articleid=6050
Good luck, thanks for using FixYa, and hope this helps.
Good luck, hope this helps, and thanks for using FixYa.

Posted on Sep 05, 2010

  • 2187 Answers

SOURCE: Hi, The pilot won't light

I am thinking it could be the relay. The relay directs the power to the device. In most devices it is the one that makes the 'clicking' sound.

Posted on Apr 10, 2011

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1 Answer

Why do I get CFH but then no SPK?


CFH = Call For Heat
SPK = Ignitor is Sparking - attempting to ignite raw fuel

In a lot of cases, Pressure Switch opens up, CFH , is cancelled and therefor no ignition sequence.
try cleaning filter really good. If cartridge, may be time for an overnight soak.

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1 Answer

Why does pool heater read SPK and won't light?


Sounds like your ignitor is shot. You may have to replace it.

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It sounds like your ignitor may be out. Everything else is good in the safety loop and the heater wants to fire. The last step in the process is the ignition of the main burner. Are you hearing a ticking sound? If not the spark is not being produced.

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Heater takes a long time to fire up.


There is a flow switch if that's not working. same problem needs to be tested Gas valve solinoid could cause this Igniter could cause this problem Gas pressure regulator wrong pressure should be about 2.7KPA LPG Gas valve should be set to about 2.6 KPA LPG

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1 Answer

When we tried to light the heater the CFH shows, then I get a SPK which stays on for aroound 1 minute, then I get a LO. The heater never lites.


The CFH is a Call For Heat.
The SPK tells you that it is creating a spark for ignition.
The LO tells me that you are on propane.
The fact that it doesnt light tells me that either the ignitor is not sparking, or that there is no gas, or an incorrect gas supply.
If this unit is installed with flexible gas line, replace this with rigid black pipe or a larger flex line.

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1 Answer

Rheem digital gas pool heater fan code


The Fan code would indicate a problem with the combustion air blower. The is a pressure switch to indicate there is sufficent combustion air, and if not then unit shuts down. Either the fan isn't running, or there is an obsturction in the fan or exhaust piping, preventing enough air flow.
cfh would be call for heat, which would be a normal display when water temp is below setpoint
See the link below for a manual. Once you open the page look on lower right side for documents, then install manual
http://www.rheem.com/product.aspx?id=2388EEB7-3DEC-4601-AE76-EC7A07F17630

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2 Answers

Rheem model p-m266a-en-c digital gas pool heater runs, shuts down


CFH is call for heat not sure what spk is, but will find out and let you know.

Jul 05, 2009 | Solar Rheem Gas Fired Pool & Spa Heater...

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