Blower motor speeds
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Blower motor speeds
Hey guys.
So I have a 2005 F250 with a 6 L
manual climate control
only low and high on my fan speeds have worked for a long time but recently they stopped working altogether. I had found out that the fan control switch on the backside was melted along with the pigtail. So I replaced the pigtail and the switch and I also replaced the resistor. The blower motor itself I had replaced a few months ago. After replacing the resistor, and the pigtail and control switch today, all fan speeds worked for about five seconds, and now I only have low and high fan speeds again. What do i look for next?
So I have a 2005 F250 with a 6 L
manual climate control
only low and high on my fan speeds have worked for a long time but recently they stopped working altogether. I had found out that the fan control switch on the backside was melted along with the pigtail. So I replaced the pigtail and the switch and I also replaced the resistor. The blower motor itself I had replaced a few months ago. After replacing the resistor, and the pigtail and control switch today, all fan speeds worked for about five seconds, and now I only have low and high fan speeds again. What do i look for next?
Fleet Mechanic
Joined: Oct 2017
Posts: 1,704
Likes: 164
From: Southwest Ohio
Sounds like you have some high resistance somewhere in the circuit. Are all terminal connectors clean and free of crusties? Any wire damage? Signs of critter chewing? I would measure for voltage drop between different points in the circuit to locate the problem area.
-- Dave
-- Dave
Thread Starter
|
New User
Joined: Nov 2020
Posts: 5
Likes: 0
Sounds like you have some high resistance somewhere in the circuit. Are all terminal connectors clean and free of crusties? Any wire damage? Signs of critter chewing? I would measure for voltage drop between different points in the circuit to locate the problem area.
-- Dave
-- Dave
Thread Starter
|
New User
Joined: Nov 2020
Posts: 5
Likes: 0
All connection points are new. No corrosion anywhere. New blower motor, new resistor, new resistor pigtail, new fan switch, new fan switch pigtail
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