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feather river aire
Jan 28, 2008, 09:59 PM
what does a limit switch do in a furnace and would it not allow the gas burners to come on?
hvac1000
Jan 28, 2008, 10:37 PM
((what does a limit switch do in a furnace))

It prevents a furnace from overheating and causing a fire.


((and would it not allow the gas burners to come on?))

Yes because allowing the gas valve to come on or stay on will allow the furnace to overheat.