Fan Limit Control Switch Settings

The fan limit controls in your furnace or forced air heating system are the components that determine when the furnace blower assembly should switch on and off.

Fan limit control switch settings.

Furnace fan off setting the furnace combination fan and limit control fan off setting blue arrow in our photo at. This one gets more specific about the method of holding the dial while adjusting the honeywell fan and limit combination used on gas furnaces up until about. How to set a fan limit control switch step 1. A fan control switch that turns the blower fan.

A control which turns the blower fan on or off depending on the air temperature within the furnace. Your fan limit controls sense the temperature change and activate the blower. Kozy king furnace 300 400 messickstove 856 452 aquastat for hydronic loop using wood boiler and oil honeywell furnace temperature fan limit switch control heating best fan in thestylishnomad com 13560 best fan thestylishnomad com 2019. It should be located near the top of.

The fan limit control includes these key features a manually operated blower fan on off switch on some not all fan limit controls a temperature sensor in the furnace either a probe with bimetallic spring or a snap disc type temperature sensor. When the thermostat calls for heat the burner jumps into action starting a heat exchange. How to choose the proper settings for a warm air furnace combination fan limit control switch 1. A temperature sensor within the furnace.

Fan limit control w 125 f on 100 f off fan on 65 f 215 f 8 insert l4064b2236 fan limit control w 125 f on 100 f off fan on 65 f 215 f 8 insert. Slide the cover off the control switch. Open up the access panel on the furnace. Look for the fan limit control switch encased in a small rectangular box.

An on off switch for the blower fan. Most slide off or unhook for easy access.