How do you test a furnace sequencer?
Category:
home and garden
indoor environmental quality
How to Check a Heat Sequencer
- Plug the leads into the electric test meter.
- Turn off your furnace by shutting off the appliance itself and by shutting off the circuit breaker that powers it.
- Touch the probes on the end of the leads to the areas where you just removed the wires on the heat sequencer.
- Check the reading on the electric test meter.
Regarding this, what does a sequencer do on a furnace?
The sequencer is essentially a series of conduits that prevent the voltage from entering the electric furnace from turning on all the heating elements at one time. The heating elements are the electrical coils that warm up as electricity passes through them; they're what actually heats the air.
In respect to this, how do you troubleshoot a heat sequencer?
How to Check a Heat Sequencer
- Plug the leads into the electric test meter.
- Turn off your furnace by shutting off the appliance itself and by shutting off the circuit breaker that powers it.
- Touch the probes on the end of the leads to the areas where you just removed the wires on the heat sequencer.
- Check the reading on the electric test meter.
Sequencers are basic relays that use a heater coil and a bimetal switch. Control voltage is applied to the heating coils which heats the bimetal switch. The heat causes the bimetal switch to flex, making contact across the switch and sending power to the elements.