Carrier Fan Limit Switch Location

If the two wires are too short to connect you use a jumper wire like a paper clip to join the terminals.

Carrier fan limit switch location. Only 10 left in stock order soon. When the thermostat reaches the preset indoor temperature an ac limit switch is flipped. The fan limit switch also has two other functions. It will be located at the top of the panel.

Locate the white limit switch. Amazon s choice for carrier furnace limit switch. This is the limit switch on our carrier furnace that i had to reset and reset until it finally stopped needing to be reset anymore and the furnace works fine. A fan limit switch is a component of a furnace system that determines when the furnace blower assembly for hot air turns on and off.

The main example is the link between the air handler blower and the thermostat. Depending on your furnace model the switch will be surrounded by a silver or white cover. If you can wait a few days i would suggest buying from amazon or ebay as they have a big selection t choose from. The fan limit switch senses the temperature increase in the furnace.

Hh12zb180 carrier oem furnace 3 limit switch l180 40 by oem replm for carrier. 5 0 out of 5 stars 5. How do limit switches work in air conditioning systems. 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.

Essentially this means that it determines when the hot air should be blown through your ventilation system. Ac limit switches are quite common. Fan limit switches can be bought at an hvac supply stores or online. Remove the cover by lifting it upwards or pulling it off to reveal the body of the switch and two metal arms.

Some hvac supply stores do not sell to the public because of the high returns while others will but at elevated prices. Examine the furnace to locate the upper limit switch. The fan limit control includes a sensor not visible in the photographs that projects into the supply air plenum on gas furnaces this is typically an area above the furnace heat exchanger. Hh18hz195 carrier oem furnace limit switch l195 80 by oem replm for carrier.

Look for a small round component with a raised red button at its center.