Furnace Blower Motor Switch

You can also determine the rating from your model number 8212 the 3 digit number preceding the hyphen indicates the btu rating.

Furnace blower motor switch.

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. Most types of residential furnaces feature an internal component known as a blower switch that is used to shut down the fan motor in the event that the appliance overheats the motor malfunctions or the furnace filter becomes clogged. When the furnace heat exchanger heats up the bimetal twists causing the round dial shown in the picture to turn. Please visit my amazon store front for awesome hvac tools at a affordable price delivered right to your home every tool in my hvac tool of th.

This video shows how to wire a furnace blower motor to an extension cord how to reverse the rotation what informa. To restore the furnace to normal operation you must reset the switch on the blower motor. Royalton 88000 max btu input natural gas 95 percentage upflow horizontal 1 stage forced air furnace. Your furnace s btu rating may be listed on the model number tag.

Based on where the manual selection switch is set when it reaches the manual setting contacts inside the switch close. This assembly is designed for 40 60 80 and 100 thousand btu model furnaces. Furnace ac blower motor replacement or how to replace your furnace blower motor. Then the furnace blower motor turns on.

This control also provides a safety limit that turns off the burner or furnace if temperatures at the furnace are too high. Fan limit switches are used on all types of building heating furnaces. 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.