It appears (or feels) that even when I have my air flow set on either panel, panal/floor, floor, floor/defrost, or defrost and the temp setting is on the coldest setting, that my air conditioner is operating. I can here it cycling in the engine and AC (cold) air is coming out the vents in the cab. Is this normal???
From my understanding of AC, the AC should only operate when it is set on AC or Max-AC.

------------------
2000 Black F150 XL 4.6L 5speed Sport 4X4 Extended cab towing package 3.55 rear limited slip

Deer Hunter

 

Since you're fairly new here, we'll give you break. Normally, one or more of us would be telling you to do a search or read one of the more recent topics that answers your question already. The answer to your question can also be found in your owner's manual.

The compressor runs in all modes except Off, Panel, and Panel/Floor.

The reason the compressor is running in any Defrost mode is to aid in dehumidification of the air. In other words, it helps clear the windshield faster.

btw, the compressor doesn't operate at very low temps (below 30 something degrees). Don't remember the exact temp, but it's also in the manual.

 

Good post Dennis!

The temp that the A/C will not operate is below 50 F (10 C).

P.23 1998 owners manual (my edition).
P.58 2000 owners manual (my edition).

------------------
2000 F-150 XLT, 4x2, 5.4L Supercab, Superchip, Styleside, Black with silver two-tone, 3.55 rear, class III towing package with heavy duty cooling package, Heavy duty shocks, 4 wheel disk ABS, overhead console, sliding rear window, keyless entry, dark graphite interior, in dash CD, factory leather wrapped steering wheel, Pendaliner bedliner, K&N air filter, rubberized undercoating, cabin filtration system, Bugflector II, 5W-30 Mobil 1, engine build 10/4/99



[This message has been edited by Dustoff (edited 06-07-2000).]

 

Don't worry that freaks out everyone else when they get their trucks also. Welcome to F-150 online. Happy trucking.

------------------
2000 F-150 XL,RC,LB,5.4,4R70W,3.55LS,
4-wheel disc/ABS,Chestnut/Parchment,
Ford bedliner & gas/wheel/spare locks,
3" cold air box modification,Superchip,
Dynomax ultra-flow welded 3" cat-back.

 

Actually, the compressor will run in any setting except Off, Panel or Floor. The Panel/Floor Setting does run the compressor.

------------------
2000 F-150 XLT Sport, Silver 4-door Supercab StyleSide
Short Bed (Only way to fit in the garage)
17" Sport Wheels with BFG tires, 3.55 R, 4.6l V8, Auto (First one in 20 years)
In-Dash Single CD Player, 60/40 Split bench dark graphite

Mods So Far
K&N Filter, Gatorback Spray-In Bedliner, Llumar ProShield Window Tint
WMS Velocity Tube

Future Plans
Superchip, Upgraded Speakers/Stereo
FlowMaster Exhaust, Nerf Bars

 

Oops, I goofed. You're right about the Floor Vs. Panel/Floor mode.

[This message has been edited by Dennis (edited 06-09-2000).]