Blower Door Safety Switch Malfunction

Wire the safety switch.

Blower door safety switch malfunction.

There is the flame roll out sensor the flame sensor not the same thing a limit switch and a serviceman s switch. Another is the blower door safety switch. Many air handlers of more than one manufacturer may accept the same air handler door switch. Depending on the age of your furnace you probably have one of these.

The door must be in place for the switch to be activated and for the furnace to operate. 1 888 757 4774 in the u s. The door switch is designed mainly as a safety device. Your hvac system comes with a variety of safety devices and they are all there to increase personal safety.

Prep the blower door. Many folks use duct tape to keep the switch closed. Often the same oem interlock door switch will fit bryant carrier and payne equipment using 115. The blower door switch kills power to the furnace when the blower door is removed.

Since the controls and blower are in that compartment it is impossible to work on the electrical controls with the blower door removed if you do not jump out or physically disable the door switch. The blower door safety switch is a simple plunger that when opened cuts the power to your gas fired furnace. Bypassing it would depend on your comfort level with the potential liability. I don t know your situation but if there are inquisitive children around or a good samaritan comes to help you on it you have defeated a safety device which could leave you open you to more headaches than a ten dollar switch.

When a furnace blower door safety switch is taped. If you discover you need to install a new safety switch follow the step by step instructions on how to install a furnace door safety switch step 1.