Common questions

Why does my furnace motor keep running?

Why does my furnace motor keep running?

You’re using the wrong thermostat fan setting. Your fan limit switch is on “manual override” There’s a shorted thermostat wire. There’s a shorted wire at the fan limit switch.

Why does my car blower motor not shut off?

If you have a vehicle with climate control system and a variable speed blower motor and the blower motor won’t shut off and stays on HIGH with the car turned off and the key out, chances are the blower motor motor control processor is toast or the HVAC control module is damaged.

Why does my car fan stay on when I Turn Off the ignition?

The climate system awakening and doing temp measurements allows it to have a had start on it mode and fan speed. If it is very quiet and you enter car close doors and listen you can hear the fan usually. OH #2: The engine cooling fan has conditions where it stays on when you turn off the ignition.

How often is the blower motor on when ignition is off?

The fan will blow for 15 minutes at half speed with the air directed to the dashboard air outlets. Make sure the customer is informed of this new function. Ambient temp greater than 75°F (24°C) when engine is turned off. Runs only one time every 20 hrs.

What to do if your climate controlled blower wont shut off?

If your climate controlled blower processor is shot, be prepared to spend mucho bucks for a replacement. But before you start throwing expensive parts at the problem, you’ll have to do some checking. Start by testing the gray/black wire at the blower motor control processor. First, try grounding the wire. Then try removing it.

If you have a vehicle with climate control system and a variable speed blower motor and the blower motor won’t shut off and stays on HIGH with the car turned off and the key out, chances are the blower motor motor control processor is toast or the HVAC control module is damaged.

The fan will blow for 15 minutes at half speed with the air directed to the dashboard air outlets. Make sure the customer is informed of this new function. Ambient temp greater than 75°F (24°C) when engine is turned off. Runs only one time every 20 hrs.

If your climate controlled blower processor is shot, be prepared to spend mucho bucks for a replacement. But before you start throwing expensive parts at the problem, you’ll have to do some checking. Start by testing the gray/black wire at the blower motor control processor. First, try grounding the wire. Then try removing it.

The climate system awakening and doing temp measurements allows it to have a had start on it mode and fan speed. If it is very quiet and you enter car close doors and listen you can hear the fan usually. OH #2: The engine cooling fan has conditions where it stays on when you turn off the ignition.

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Ruth Doyle