Why Does My Heater Run Then Stop?
If the heater does not turn on, it may have reached abnormal temperatures. If the manual reset trips (which turns the heater off), the heater probably needs to be cleaned or it’s blocked. Be sure the heater is wired to the correct voltage (120 volt supply to 120-volt heater). If the heater will not reset and the circuit is good, the heater will need to be repaired or replaced.