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My Master propane heater will not stay lit. It only burns when I hold the pilot button in. Is it the thermocouple?

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Yes this is probably the thermocouple connection.

Just remove the end of the thermocouple from where is goes into the gas valve and leave the end that goes into the flame in place.

Clean the end of the thermocouple connect by scraping off just a little metal from the end just about there the nut tightens the thermocouple into the gas valve. After you have exposed some new metal do the same inside the valve where the thermocouple seats into the gas valve.
Use a small pic or similar item to scrape inside the gas valve to expose some new metal there also.

Now reassemble the thermocouple into the gas valve and see if the heater works.

Here is a link with some more instructions.
http://www.msservice.net/ts/reseat_thermo-clean_pilot-ODS.htm


Thanks

Posted on Oct 10, 2010

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