Replacement Electric Baseboard thermostat


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Old 03-20-23, 05:57 PM
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Replacement Electric Baseboard thermostat

Hello, I noticed an issue with our digital thermostat not controlling the baseboard heater in our living room. Set for 70, runs to 75 and stays on. Iím looking to replace the thermostat first as itís about 12 years old so thinking first step. I bought the Lux thermostat linked below to replace the older Lux model that we had. when I took the old thermostat off, there were only two black wires coming out of the wall and the new thermostat has two red and two black. I know the new one works on single and double poles, just donít want to rewire incorrectly so looking for advice. Thanks in advance.



Lux ELV4 thermostat

 

Last edited by PJmax; 03-21-23 at 11:58 AM. Reason: fixed link/resized/enhanced picture/added diagram
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Old 03-21-23, 11:57 AM
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Technically you have four wires there.
A two wire power in feed cable and a two wire power out to heater cable.
The whites are currently spliced together.

I simplified the diagram to be easier to follow.
Only the L1 wires are switched.
You can follow the center diagram. Be sure to cap off the spare L2 wires.
 
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Old 03-21-23, 05:18 PM
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Thank you. That was how I wired so I feel better
 
 

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