Furnace thermostat error list
An error list typically contains a symptom and details about the type of problem.
We offer an errors list in The Furnace section to provide detailed information on the errors which may occur.
Issue: Fan runs continuously upon startup or system reboots
Solution: Do not start heating or cooling while the fan is running. Confirm that power to the unit is on and contact your local technician if the system still not operating correctly.
Issue: Fan still running after Controls has been turned Off
Causal factors: Failed restart; faulty pressure sensor; faulty t-statements showing line voltage too high or low, an area of concern may be an electrical surge damaging control circuitry; out-of-sequence events due to storm damage. Solution: Check the circuit breaker for troubleshooting instructions – Blow air across contacts with the furnace lid removed (arrow below) Make sure no lines carrying AC voltage into the furnace with water during wet weather –
Ever wonder what your house thermometer means when it displays an error message? You’ve probably been told the meaning behind that message several times already but if you’re like me, it never hurts to review the most common errors which might pop up during routine checks.
The simplest way to decode the list of these symptoms is to just figure out what kind of situation triggered that particular alarm before soldering any other conclusions about your model or system/building setup. After taking this straightforward approach, I usually find that the problem has a straightforward solution. It more than likely resolves itself with something as simple as updating the device’s firmware or resetting it together (deleting preferences).