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  1. S

    24v on P terminal but only get 1v on MV terminal - Raypak p-r336a heater

    Any help on how best to rule out and isolate the gas valve as the problem would be appreciated.
  2. S

    24v on P terminal but only get 1v on MV terminal - Raypak p-r336a heater

    Can someone let me know how I can bypass the flame sensor and also a method to deliver 24v to test that the gas valve will work? I'd like to run these 2 test to ensure that the issue is the PCB and not the gas valve. Any help would be appreciated.
  3. S

    24v on P terminal but only get 1v on MV terminal - Raypak p-r336a heater

    Thank you for the suggestion. One question though, if the PCB should never put out 1v on the MV terminal, should I continue trying to clean and troubleshoot or does it suggest the PCB has gone bad? I don't mind testing, just want to make sure.
  4. S

    24v on P terminal but only get 1v on MV terminal - Raypak p-r336a heater

    Hi Fellas, First post on the forum, I just found the site and it has already been very helpful. I'm having a little bit of trouble getting a heater running. My LCD screen does not work very well, I can only make out what it says late in the afternoon when there is minimal glare. I ordered a...
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