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| 1, Is there a 2 wire romex to the thermostat from the heater, or is there a 2 wire romex coming to the thermostat from the breaker and another 2 wire going from the thermostat to the heater, with the white wires wirenutted together in the thermostat box?
2, where are you reading 120 volts?
Are you reading that from 1 side of the thermostat to the ground at the box the thermostat is in?
3, can you open the junction box at the first heater after the thermostat and take readings there? | |
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