How do you replace a furnace transformer?
Then, how much does it cost to replace a transformer in a furnace?
Cost to Replace a Furnace Transformer Replacing a transformer in a furnace costs $100 to $175. The part alone only runs $20 to $40 with labor making up the rest. The transformer converts incoming electrical power into lower usable volts.
Secondly, how do I know if my furnace transformer is bad?
The work of a transformer is to change the voltage that travels from the circuit board to the HVAC unit.
Bad Transformer Symptoms In HVAC
- Humming And Vibrating – The humming sound in transformers is normal.
- Tripped Circut Breaker – When the transformer of your HVAC unit goes bad, the circuit breaker will usually trip.
This is likely caused by a damaged component within the control circuit, which is drawing far too much current for the transformer. Rather than burning up more transformers, and/or blowing through a crate of fuses, why not try troubleshooting the circuit with the power off.