The wall heater has no electrical connections at all on it, with a manual off/low to high abutment on top of unit. The pilot light lights fine but the heater part(is this the burner, not sure what its called) does not light. The manual control valve is inline after the pilot, and before the burner.. could this be the problem. Can I disassemble this and maybe clean it or where do I get a replacement? Thanks!

You must have voltage going to it or it will not work. It requires 24 volts to the gas valve to open it on a call for heat. There is usually a transformer nearby that drops the voltage from 110 to 24 volts.

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Originally Posted by ReelFast1

The wall heater has no electrical connections at all on it, with a manual off/low to high abutment on top of unit. The pilot light lights fine but the heater part(is this the burner, not sure what its called) does not light. The manual control valve is inline after the pilot, and before the burner.. could this be the problem. Can I disassemble this and maybe clean it or where do i get a replacement? Thanks!

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You Say:
The manual control valve is inline after the pilot, and before the burner.. could this be the problem.

If the valve is closed then yes this could be the problem. Are you sure it is a manual valve or is it an electric valve operated by millivolts ( a very low voltage less that one volt? If it is a millivolt valve it will have three or four wires running to it.

It could also be a valve that is controlled by a thermostat that is on a hollow tube that usually hangs down at the bottom of the heater where the return air enters the heater, It will also have a thermocouple that is connected to the pilot and the pilot keeps it hot.

Let us know what valve you have and maybe we can help you out.

This could be a millivolt system with a bad powerpile/generator.