Carrier Furnace Fan Limit Switch Location

It also determines if the furnace should be shut down in the case of overheating.

Carrier furnace fan limit switch location.

A fan limit switch consists of the following components. Hh18hz195 carrier oem furnace limit switch l195 80 by oem replm for carrier. If the two wires are too short to connect you use a jumper wire like a paper clip to join the terminals. Hh12zb180 carrier oem furnace 3 limit switch l180 40 by oem replm for carrier.

Step 4 press and hold the red reset button in the center of the rollout limit switch component. Locate the rollout limit switch on the burner assembly. Additional comfort enhancing functions on select models include ideal humidity system technology for relief from hot and sticky summer air and comfortfan technology which allows you to select furnace fan speeds from the infinity system control. A clogged up furnace filter will block air flow into a furnace and raise the temperature inside it.

Just as it determines when the blower assembly should turn on it will also determine when it should turn off. How a fan limit switch works. It is usually located behind the inducer fan motor area to test it you can turn off power to furnace remove the wires from either side of the limit switch and connect the two wires you removed together. The limit switches are around the burner housing.

Locate the white limit switch. To access the burner components in a downflow furnace you ll need to remove the bottom front panel. The fan limit switch also has two other functions. Remove the cover by lifting it upwards or pulling it off to reveal the body of the switch and two metal arms.

5 0 out of 5 stars 5. Carrier furnaces combine quality and performance in a durable attractive and compact cabinet. Honeywell l4064b2236 combination fan and limit furnace control. It will be located at the top of the panel.

In carrier downflow furnace models the flame roll out switch is just above the gas burner. If the temperature inside the unit becomes to high the high limit switch will turn the gas off to the unit. Things to check first. Be sure the filter is good.

One likely will not as it is an auto reset one. There should be three of them two should have a reset button on them that you can press. Amazon s choice for carrier furnace limit switch. Look for a rounded component with a raised red button in the center.