Shops, Barns, Varmints, and Trucks - F 250 Super Duty Climate Control

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F 250 Super Duty Climate Control

Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
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URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=153131
Printed Date: 28 Aug 2025 at 5:46am
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Topic: F 250 Super Duty Climate Control

Posted By: FREEDGUY
Subject: F 250 Super Duty Climate Control
Date Posted: 17 Aug 2018 at 10:09pm

I have an '05 F250 w/5.4 engine.Strictly a work truck(no power ANYTHING) but does have A/C. My question is, regardless of climate control position;panel,floor,combo,defrost,defrost/floor whatever, the compressor activates even though the A/C mode is not selected. I can see it running in the defrost mode,but not in panel/vent/floor mode. Is this normal?? Yes, the A/C blows very cold in both A/C and MAX mode. Thanks

Replies:

Posted By: steve(ill)
Date Posted: 17 Aug 2018 at 10:18pm

I don't know if it blows in EVERY position, but FORD trucks do cycle the compressor in many of the selected positions..( my 2002 runs in 3-4 different positions ). Besides keeping the humidity down, you want the pump to get some on - off time and not set OFF for months at a time.

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Like them all, but love the "B"s.

Posted By: FREEDGUY
Date Posted: 17 Aug 2018 at 10:33pm

Thanks, my previous truck was a '95 Dodge and only recall the compressor running in defrost,A/C mode??

Posted By: Brian Jasper co. Ia
Date Posted: 19 Aug 2018 at 1:03am

The compressor should run in all modes except floor and vent or off.

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"Any man who thinks he can be happy and prosperous by letting the government take care of him better take a closer look at the American Indian." Henry Ford

Posted By: jaybmiller
Date Posted: 19 Aug 2018 at 5:47am

sounds kinda normal, I know my 97 will run in max a/c, ac, vent/floor and floor modes. It might (should) be explained in the manual in the glove box.

it might be shut off( depower the clutch) IF you set the 'temp' knob high enough. I've never checked though.

Jay

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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)

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