AC not working, no power going to low pressure switch

JEFFJ

MEMBER
2007 FORD F-150
V8
2WD
AUTOMATIC
110,000 MILES

Ac not working, no power going to low pressure switch. Fuse seems to be good. Can put power to compressor side of low pressure switch and it functions properly by all switches

Saturday, April 9th, 2011 AT 1:28 AM

3 Replies

CJ MEDEVAC

MECHANIC
11,004 POSTS

Hello,

Fuse # 14 supplies power to the cycling switch I would check it for power here is a guide and the air conditioner wiring diagrams so you can see how the system works and the fuse locations as well.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.

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Thursday, April 15th, 2021 AT 2:33 PM

DOCFIXIT

MECHANIC
18,828 POSTS

Use a meter on fuse see if there is power to and across fuse.

This guide can help as well.

https://www.2carpros.com/articles/car-air-conditioner-not-working-or-is-weak

Please run down this guide and report back.

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Thursday, April 15th, 2021 AT 2:33 PM

JEFFJ

MEMBER
36 POSTS

Thanks cj medevac the wiring diagram did the trick!
The problem was somehow about 7 inches from the low pressure switch, the blue and pink striped wire was broken internally! I traced it down per the schematic. Made nice solder repair and customer is back chill n. Thanks guys maybe this lesson will help someone in the future!
Jeffj
Opelousas, la

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Thursday, April 15th, 2021 AT 2:33 PM