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Rear AC not functioning.

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Old Feb 9, 2021 | 01:37 PM
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Rear AC not functioning.

My rear heat and ac is not working on my 2005 ford excursion PSD. The heat stopped over a year ago and I was living with just AC(Florida). I was getting coolant to the back so I assumed blend door. I just wasn't in a hurry to fix it.

Now nothing is working. I ran a jumper to the blower and it works. I have checked the fuses I believe would affect it and still nothing. (if someone wants to confirm which fuses to check that is helpful).

Any other ideas? do the switches tend to go out? Maybe my stuck on full cold was actually a switch problem and never blend door issues.
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lastly I removed my console for an overland fridge, does the control on the back of the console effect anything? Its just plugged into the cigarette lighter, I did not hard wire the fridge. I have plugged the radio control panel back in and nothing changes.
 
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Old Feb 10, 2021 | 09:41 AM
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Are the coolant lines going to the rear heater core getting to hot to hold onto?
 
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Old Feb 10, 2021 | 09:44 AM
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Yeah they are. Currently I have nothing though. The fan isn't turning on. even when I put a jumper wire at the switch.
 
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Old Feb 10, 2021 | 09:51 AM
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Originally Posted by conig
Yeah they are. Currently I have nothing though. The fan isn't turning on. even when I put a jumper wire at the switch.
Could be a bad speed resistor.
 
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Old Feb 10, 2021 | 10:00 AM
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the blower works if I run a wire from the rear power point.

Whats my solution to the resistor replace the switch?
 
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