[beenthere]

Replace wire for wire. Get model number of sequencer off of the old one. Could also be a blown heater coil.

 

[beenthere]

Turn off power. Put meter to ohms. Put probes on the strip heater posts. Should read between 10 and 14 ohms.

If ohm reading is correct. Then turn power back on. Set meter to voltage. Put probes on sequencer and see if it reads 240 or 0 volts across sequencer. Should read zero, after heat has been called for 2 minutes.

 

[beenthere]

The second sequencer can work even if the first isn't.

Yes, each switch.

 

[beenthere]

OK opened up my furnace and have model BAYHTR1415BRKAC manufactured 5/2005. i see recalls on this model between 4/2003 - 2/2004. need to replace sequencer but should i simply replace the whole unit? wondering what people with more expertise think. any suggestions on replacement also appreciate.

I'd just get the sequencer.