Question about Rheem Paloma PTG-74PVN / RTG-74PVN Natural Gas Indoor

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Paloma ph28rifsp serial 04.11-000018 main power went out twice yesterday and then came back on, water heater starts and fires then fire goes out and then comes on again then we get error code c4 and 12 with decreased water preasure. Water preasure is great with water heater off

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  • teddynov Jul 17, 2009

    You should contact Paloma and find out what error code C4 is thats what I'm paying for thanks

  • teddynov Jul 17, 2009

    And I would like my credit card rembursed $9.99, because your ststing that you can't fix it thanks

  • teddynov Jul 18, 2009

    Got the waterheater working by pushing the right button on the panel while hot water was running, panel board is not bad, I would like my money refunded.


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Hello there, sorry to hear about your troubles, you will need to rate an answer (if you could rate mine that would be great, hopefully 4 thumbs / very helpful). Then you will need to email and ask for the refund, we are not able to do it from here.



Posted on Jul 18, 2009

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Error code 12 signifies that your gas service has been interrupted. Unfortunately there is no listing for the error code c4. You should contact your local Paloma repair center to find out what that code signifies. It's possible that your display was damaged by the main power going out. The fact that your water pressure decreases when your water heater signifies that you will need some repair work completed on your unit.

Posted on Jul 17, 2009

  • bvanjoff Jul 17, 2009

    Actually what we provide is access to all our expertise and manuals we have available. Unfortunately there is no error code C4 listed in Paloma's documentation. This may either be a specific code meant to be interpreted by their service technicians, or there may be something wrong with the unit's display or error code generation software. We do not contact manufacturer's for our customer's. The fact that you are receiving the code for an interruption to your gas service, and that your unit will fire, then go out, then come on again signifies that some type of damage was done when your power interruption took place. There are certain types of issues that cannot be remedied by anything other than a certified technician diagnosing and repairing the issue. Taking into account what your water heater is doing right now leads me to believe that this is one of those times.

  • bvanjoff Jul 17, 2009

    After some more research I tracked down the C4 code. As stated, this code is normally left for the Rheem/Paloma technicians. One of your circuit boards has been damaged. You will have to contact the dealer in your area. If you still have a warranty they will send out a replacement board for you. If you are out of warranty, they will ask that you pay for the board. Once the board has been replaced, there will be a specific series of steps to take to bring the unit back online.


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