Author Topic: Air conditioning - not very cold?  (Read 359 times)

0 Members and 1 Guest are viewing this topic.

  • *
  • Posts: 60
  • gb United Kingdom
Air conditioning - not very cold?
« May 29, 2017, 01:44:10 »
Hi All,

My air conditioning stopped working over time, to the point the gas had dropped so low the compressor would not switch in.

So went to my local garage, who used their machine to vacuum any old stuff out, leak test/pressure test and regassed as per manufactuer information.

He then told me everything had passed ok, but it wasn't working properly.

I got in the car and it is cooler than the outside, the A/C compressor does click in and out when pressing the button. But its not super cold if you get me - my wifes car and my old cars would freeze your hand on the coolest setting.

Is there any common problems I need to look at?
- Change pollen filter? - but doubt that will effect the a/c temp itself
- Should the radiator fan come on when A/C is on?

Cheers
Jordie
  • 2010 i30 1.6 crdi

  • *
  • Posts: 370
  • au Australia
    Camden, NSW
Re: Air conditioning - not very cold?
« Reply #1 : May 29, 2017, 03:16:19 »
Thermostat ??, that should have been set & checked,  go back & tell them that its not that cold.
You paid for it to be fixed. Thermo fan usually kicks in on the coldest settings, I may be wrong on that.
  • 09/2016 GD4 SII Active X 5dr Hatch Petrol 1.8 Auto 6sp white

  • *
  • Loco, most of the time!
  • Posts: 21,917
  • au Australia
    Mos Eisley, South Australia
Re: Air conditioning - not very cold?
« Reply #2 : May 29, 2017, 03:27:06 »
Depends on the ambient temp in your area at the time. You can't expect to freeze hands when the air temp is quite cool. If it did you'd probably say that the AC is not working as it is too cold.
  • 2008 SX CRDi Auto White (Lila)
    2010 SLX CRDi Auto Red (Ruby)

  • *
  • Posts: 39,499
  • england England
    Manchester, UK
    • i30 Owners Club
Re: Air conditioning - not very cold?
« Reply #3 : May 29, 2017, 03:34:44 »
Quote from: Jordie
... regassed as per manufactuer information.

I wonder if they used the original HFC R-134a spec gas, or the [now] mandatory-for-new-vehicles HFO-1234yf  refrigerant.

The new gas type doesn't get nearly as cold as the older one, imho.
  • Phantom Black 2014 i30 Style Nav 1.6 CRDi 128ps 6speed manual

  • *
  • Posts: 370
  • au Australia
    Camden, NSW
Re: Air conditioning - not very cold?
« Reply #4 : May 29, 2017, 06:16:30 »
We bought our i30 in dec 16 ,
wife kept turning A/C off as it was freezing her feet -set for fresh air and fan speed on 1, all summer.

 :cold:
  • 09/2016 GD4 SII Active X 5dr Hatch Petrol 1.8 Auto 6sp white

Re: Air conditioning - not very cold?
« Reply #5 : May 29, 2017, 14:43:03 »
Its the R134 gas, as thats what the vehicle (2010 FD) was designed with. Not alot of places actually do the other type gas. At time of booking, I was specifically asked what type of gas and they state on the terms that they dont do the other gas.

the temp was indicated about 25 C.

I run the heater hot and warmed the vents up, then run it on lowest setting (with A/C off). I monitored the temp using my hand infront of the vent (very scienticfic I know) then turned A/C on with my other hand (compressor engages OK and runs). The temp did feel slightly colder, but not as much as expected.

I am reading on other sites that the expansion valve may be faulty/stuck.

To the comment ref thermostat - Not sure what you mean? They did the regas job I asked them to carry out, I didnt pay for an A/C diagnosis session. Its a common task to regas.
  • 2010 i30 1.6 crdi

  • *
  • Posts: 370
  • au Australia
    Camden, NSW
Re: Air conditioning - not very cold?
« Reply #6 : May 29, 2017, 17:22:33 »
Hi Jordie,
The guy i use always checks / alters the thermo setting with a digital thing , as thermo decides when the AC cuts in & out. All part of the service ☺
  • 09/2016 GD4 SII Active X 5dr Hatch Petrol 1.8 Auto 6sp white

Re: Air conditioning - not very cold?
« Reply #7 : May 30, 2017, 13:24:31 »
Never heard of that being done in the mainstream a/c services in the UK. A dedicated A/C centre may however. I do have a a/c specialist not far from me so will be asking them for advice when i am next able to call in.
  • 2010 i30 1.6 crdi

  • *
  • Posts: 28
  • gb United Kingdom
    North East, England
Re: Air conditioning - not very cold?
« Reply #8 : June 10, 2017, 15:55:08 »
I hope my local service garage has all the correct gear. One in the City doing re charging for 49. My son has a Nissan X Trail because Nissan use a special fitting he had to go to a Nissan dealer cost him over 100.  :Shocked:
  • 2011 Comfort. 5door diesel 1.6 auto White.

  • *
  • 7 star HOS Member
  • Posts: 23,673
  • england England
    Wirral
  • Wirral, UK. - 1.4 Petrol Active - Aqua Blue
Re: Air conditioning - not very cold?
« Reply #9 : June 10, 2017, 19:05:48 »
My gd isn't as cold as my previous fd model.

Was told it was due to the different refrigeration used due to those @@@@@ in Brussels
  • 1.4 Petrol Active       I'm no expert, so please correct me if I'm wrong

  • *
  • Posts: 813
  • au Australia
    Samford Valley
Re: Air conditioning - not very cold?
« Reply #10 : June 10, 2017, 23:07:48 »
The expansion valve fault is not uncommon according to my guy.  When they do the regas, they will  run the car and measure the temp at an interior vent. The last GD we did was running at 2 deg. C.
If you have climate control, there is a sensor behind the crash pad, it senses the temp and sends a signal to the ECU. A line switch in the tubes under the bonnet controls fan switching via the ECU. The fact that the compressor is engaging just means that you have gas pressure. After doing some repairs, I usually use compressed air from my system to test components and also for leakage, rather than waste time and money gassing a faulty system.
  • 2016 GD 1.8L  Auto Hatch;  2009 FD 2.0L Auto Hatch