Question about Rinnai Unvented Gas Zone Heater. 99% fuel efficient: Blower with Thermostat

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Heater goes off

I have a Rinnai REH-23DFT-N with a serial number of 98.07-000001. It has started shutting itself off and not relighting. Any suggestions?

Posted by Luke Alexander on

  • Robert 0116 Dec 12, 2008

    I am having problems finding a thermalcouple / igniter unit for a Rinnai REH 23 DFT-Propane. If anyone knows of a dealer please help. Robert

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Possibly A bad thermocoupler. It is the part that looks like a stiff solid copper wire with on end sticking in the flame of the pilot light and is a safety feature if the pilot goes out it starts to cool and the resistance changes back you the module and the module shuts the gas off. I have seen these go intermediately faulty in waterheaters and do just what you described.

Posted on Jan 08, 2007

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