My AC hasn’t been working for a while so, thinking it was out of gas, I took it in for a recharge to ATS.  They told me that it still had plenty of gas (470g) but for some reason wasn’t blowing cold and that I’d need to get someone to diagnose it.

 

The AC light comes on but there’s no change in engine revs at all, which I’m sure there used to be.

 

I checked the manual for the fuse location, which it listed as number 10 in the array under the steering wheel but that slot is empty.  I’ve never touched those fuses so is it missing or not required?

 

If that’s not the fault, does anyone have any suggestions for things I can check for myself before putting it in to a garage?

 

I don’t have diagnostic tools or anything like that.

 

Thanks.

Reg plate number or VIN to enable detailed spec to be accessed would be key to me helping here. 

.

Edited 24 July, 20241 yr by harry vederci
DUPLICATED POST

1 hour ago, Breezy_Pete said:

Reg plate number or VIN to enable detailed spec to be accessed would be key to me helping here. 

Hi, the VIN is TMBKK25J1C3063093.

There are four cabin fuses shown as involved in your A/C system,

Fuse number (Fuse rating)

8 (5)

9 (5)

22 (7.5)

39 (30)

 

There's also the 50A strip fuse in battery fuseholder (2nd from right I think) that feeds the fan control module.

 

If all of those are intact, I would be checking the wiring to the compressor control solenoid, and checking that the compressor shear plate hasn't lived up to its name and resulted in the pulley spinning but the compressor shaft not.  

6 minutes ago, Breezy_Pete said:

There are four cabin fuses shown as involved in your A/C system,

Fuse number (Fuse rating)

8 (5)

9 (5)

22 (7.5)

39 (30)

 

There's also the 50A strip fuse in battery fuseholder (2nd from right I think) that feeds the fan control module.

 

If all of those are intact, I would be checking the wiring to the compressor control solenoid, and checking that the compressor shear plate hasn't lived up to its name and resulted in the pulley spinning but the compressor shaft not.  

 

 

Cheers Pete, I’ll check the fuses you list.  Is slot 10 supposed to be empty though?

 

I don’t know what or where those other parts you mentioned are.   I’ll have to google those…

11 minutes ago, harry vederci said:

Is slot 10 supposed to be empty though?

Yes, on cars from May 2011 build it is listed as vacant. Yours was built 24th Sept.

Was used in some earlier time periods, and again in some later ones.  Owner's manual and generic online info usually struggles and fails to cover all such variants.

 

Battery fuseholder looks like this, with the relevant one highlighted.

Measure for 12V on the nut that holds the cable to it.  *Confusingly the numbering on the fuseholder itself differs from the numbering in circuits, due to the missing one being counted in the car, but not in the diagram* (I seem to remember, please confirm/deny when you've had a look).

 

 

Edited 24 July, 20241 yr by Breezy_Pete

Ok, fuse 5 is absent but it’s listed for petrol engines and mine is a diesel.  Fuses 9, 22 and 39 are present and intact.

 

The voltage on fuse 5 in the battery fuse holder reads 12.4 V. (They are numbered 1, Reserve, 3,4,5,6.

First one I  listed in the cabin was fuse 8, not 5. 👍

47 minutes ago, Breezy_Pete said:

First one I  listed in the cabin was fuse 8, not 5. 👍

 

Ah, I knew I should have written them down and not just tried to memorise them!  Fuse 8 is ok.

On my 1.2 2011 the engine rpm does not change when I activate the AC, but it works perfectly.

På min 1,2 2011 ändras inte motorvarvet när jag aktiverar AC, men den fungerar perfekt.