Question about Raypak Rp2100 Pool & Spa Heater Lonox 407k Btu Natural Gas Polymer Header Digital Rp407aenc

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Raypak rp 1200 - pilot is on, unit will not fire. 10-12 ohms in safety loop. 340 ma from generator with loop connected. 440ma with loop disconnected. Do I need to clean the generator/pilot orfice? If so, how do I get them out? Thanks

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If this is a MV heater you need 500MV to run the heater. 200 to start the pilot and 300 to open the main valve. If your dropping 100MV on the safty circut you will need 600 or better to fire the heater. I would clean all the connections on the safty circut. I will usually change the whole pilot assembly, but you can get away with just the pilot generator.
It's hard to say how to remove the pilot as their are a couple of different ones and the heater you have listed has none, but a hot surface ignitor instead. Also it runs on 110 or 220v stepted down to 24v for most of the safty circut.

Posted on Sep 05, 2010

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If you have a schematic, a volt/ohm meter and some debugging experience you may be able to figure this out yourself. If not, I recommend you get a volt/ohm meter and call the Raypak technicalsupport at 800-947-2975 or 800-627-2975. They they should be able to help youfigure this issue out. I hope this helps.

Please vote on this answer. Thank you.

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