You will need to check the heating element wiring to see that isn't a short on the neutral side. This could cause them to continue to heat even if the thermostat is working. If all wiring is ok check the function and resistance given by the thermostat.
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You will need to check the heating element wiring to see that isn't a short on the neutral side. This could cause them to continue to heat even if the thermostat is working. If all wiring is ok check the function and resistance given by the thermostat.