How to troubleshoot a bad sequencer with power off?
I think i have a bad sequencer because my heat blower will not cut off after i turn it off. So to troubleshoot it with power off, should i read 0volts ac with the power off because it should be in the open position when the blower is supposedly off? It might be stuck on i think.
use an ohm meter and disconnect the wires on the terminal of the sequencer for the fan. if closed it will read 0 ohms if open then infinity. lots of the time when you bump or touch or move sequencers the switch will open. some brands of elec furnaces use a 24 or 240 volt fan relay so that may be the problem.
"Cut it twice and it is still too short".