Trane Furnace Fan Limit Control

The high temp limit switches usually have a manual reset button that needs to be pressed to reset.

Trane furnace fan limit control.

This control also provides a safety limit that turns off the burner or furnace if temperatures at the furnace are too high. Press ctrl f to find model number below if you have any questions call 734 326 3900 for further information. I would try a reset it may have been a fluke that it tripped if the reset dosent trip again it is probably fine. The swt01259 limit switch is used on many trane and american standard furnaces.

This video will help you to diagnose and replace a faulty limit control on your gas furnace. This means that this limit switch opens and cuts off the gas burners when the temperature inside the furnace heat exchanger reaches 190 f and closes back to allow the burners to come back on when the heat exchanger reaches a temperature of 160 degrees f. Fan limit switches are used on all types of building heating furnaces. Fan control limit switch the fan switch reads the temperature inside a furnace and once the temperature becomes warm enough turns the blower motor on sending warm air into a home.

This is used so that cold air is not blown into a house waiting for the gas flames to heat up enough before the blower turns on. The specifications on the furnace limit switch are thermal limit open 190 f close 160 deg f. Furnace fan limit safety control q a set 5.