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View Full Version : Sears gas wall heater MODEL 867?


qwester
Oct 27, 2011, 09:16 PM
I need the operating instructions and repair or service manual for a Sears wall heater model number 867.734731 which was working well until it stopped and I cannot relight the pilot. This is a 21000 BTU max unit.

drtom4444
Oct 29, 2011, 06:04 AM
You will have to replace the thermopile. See: http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CHkQFjAC&url=http%3A%2F%2Fscholar.lib.vt.edu%2Ftheses%2Fava ilable%2Fetd-8497-205315%2Funrestricted%2Fchap2.pdf&ei=q_irTsa1Nc6htwe2qPzXDg&usg=AFQjCNE-4KaY1IOEvPBZ8MpNmOAJHBbWiw

It supplies electricity to keep pilot light on and to operate the gas valve. It has a rod that is heated by the pilot light on the 1/2 inch of the tip. Make sure to adjust it when you replace it or it will not work, or the life of it will be short. If electricity is supplied to heater from an external source then you will replace the thermocouple, instead, which looks like a thermopile and is adjusted the same way. DrTom4444

MsDonna59
Feb 4, 2013, 11:50 AM
Need part for model#8676645, MFGRS.#75643-J5

drtom4444
Feb 4, 2013, 01:18 PM
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drtom4444
Feb 4, 2013, 01:22 PM
Here is a picture: http://cloudfront.zorotools.com/product/full/12Z418_AS01.JPG