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Re: Pilot won't light on gas hot water heater

Posted By: Joe
Sunday, 21 May 2000, at 8:45 p.m.

In Response To: Re: Pilot won't light on gas hot water heater (Chuck)

Thermocouplers do not 'block'.

A themocoupler is an inert metallic device, that when heated, emits an electrical charge.

Its purpose is to create a current when heated by the pilot light at its tip, to open the gas valve to keep gas flowing to the appliance.

If the current fails (ie the pilot light goes out) the gas supply is cut off and the appliance shuts down.

It is a common mistake to ASSUME as this poster does that changing the thermocoupler is the 'common' problem and that the 'common' solution is DIY. Nothing could be further from the truth.

Depending upon the actual problem, the solution, even if it means simply changing the thermocoupler, can be a very complicated challenge even for professionals.

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