Thermostat turned bad ?

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  #1  
Old 03-03-16, 10:21 PM
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Thermostat turned bad ?

I have a thermostat (heating only, 240V, 2 wires) that have worked for years. Yesterday, I realized the screen was blank. When I read the voltage with the cables attached, it reads 0V. When I remove the thermostat cables, I read 120V.

Since I thought it was the thermostat that was faulty, I purchased a new one and get the same result. 0V with the thermostat wired, 120V when cables are free.

I live in Quebec, Canada.

What do you think? May it be the heater that is dead?

Thanks for your help!
 
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Old 03-03-16, 11:56 PM
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Welcome to the forums.

With the thermostat disconnected...... you should measure 240vac between the two wires.

If the heater was dead you would read 0v between those two wires with the stat not connected.
Check your breaker. Push all the way to off and then turn back on. If no change.... check for 240vac at the two pole breaker.
 
 

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