baseboard heater - 2 cables

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  #1  
Old 11-21-19, 07:17 AM
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baseboard heater - 2 cables

I installed a 120v replacement baseboard heater/thermostat last year. I wired it into one set of wires from one cable and it worked for a few months and stopped working. I bought a new 240v heater/thermostat but this wiring is odd. IDK if it is connected to another heater, and it is not in my home, so I can't test it now but I thought that both sets were live. I know I'll need to drive over there and test it again, but for now, any ideas on wiring this?
 
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Old 11-21-19, 09:02 AM
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If the previous heater was 120V and the power is 120V, why did you get a 240V heater? Are you sure the second cable isn't daisy chained to another heater?
 
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Old 11-21-19, 09:23 AM
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Check the voltage at the wiring.
The second wire may go to a wall thermostat.

Sounds like you are doing a lot of guessing here. Wiring is not something to guess about unless you want to make work for the fire department.
 
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Old 12-07-19, 09:09 AM
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fyi, turns out one cable is hot and the other isn't, and it is wired to a 240v breaker on the panel (B hot, W hot , ground, no neutral). Soooooo, it is a 240v circuit (heater) and the power continues to another heater. The 120v heater that was installed burned out after a few months from the 240v circuit.
 
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Old 12-10-19, 10:11 PM
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Where is the thermostat? On this heater or a different one?
 
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Old 12-11-19, 10:39 AM
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(B hot, W hot , ground, no neutral)
The 120v heater that was installed burned out after a few months from the 240v circuit.

Be thankful it was the heater that burned out and not your house! You cannot get 120 volts from a 240 volt circuit unless you use the bare grounding conductor as a current carrying neutral which apparently is what has happened.
 
 

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