Question about Ford E-150

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Heater switch not working it did some days and others I had to bang on the dash to get it working

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If you mean the blower switch, the problem could be the switch or the resistor, or the blower motor. I would check the plug for the switch first.

Posted on Feb 08, 2014


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Posted on Jan 02, 2017

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SOURCE: Heater Fan/Blower does not work.

what you need is a blower motor resistot

Posted on Dec 04, 2008

  • 345 Answers

SOURCE: Heater Control Dash Light Out

there is a bulb in the heater setting dial,remove the dials you will see the bulb,little ***********to change

Posted on Dec 29, 2008

  • 642 Answers

SOURCE: removal of heater fan switch on dash.

Chances are it is in fact not the switch. These systems are wired so that at high speed setting battery power is connected directly to the fan. However lower settings switches through a set of resistors. These are mounted on a circuit board which in your case is mounted on the firewall on the passenger side of the vehicle under the wiper. Check this before you turn the control panel into a heap of spares on the garage floor.

Posted on Aug 02, 2010

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Why is my heater not blowing hot or cold air? sometimes if I bang on the dash board it comes on

It sounds like your blower so buy a new 1 from Auto Zone and then install it & if it works problem solved. If not return it for full credit & buy the Relay Switch & try that bc it regulates the Blower Speeds of 2 & 3. See if that works. It is near the Blower on the passenger side under the dash and fairly easily to get to. Hope this helps. Jim

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