Question about Montgomery Ward (223600UP) Heater

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MW wall heater SFB-50145B, SN:HD47X, 50k BTU Unit functions fine, but pilot goes out intermitantly(3-7 days). Nat Gas, supply is good, pilot flame is 1.5" and blue. Thermostat is modern and works. just needs pilot relit constantly

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Depending age of unit, clean either the thermocouple, or the flame sensor.

Posted on Feb 22, 2010

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