Ka hot air from vents, with aircon on or off

Ka hot air from vents, with aircon on or off

Author
Discussion

anonymous-user

Original Poster:

61 months

Sunday 29th April 2007
quotequote all
Hi
1st fault on 2002 Ka, blowing very hot air from vents, with aircon both on or off (when on cold setting & recirc on of off). Although it did work briefly today, going downhill!
Any ideas please?. Thanks in advance

msport

14 posts

214 months

Sunday 29th April 2007
quotequote all
Your air con needs to be re-gassed and sterilised.

anonymous-user

Original Poster:

61 months

Sunday 29th April 2007
quotequote all
msport said:
Your air con needs to be re-gassed and sterilised.

Great, I hope thats all it is. I read a few things via Google & convinced myself it was something more serious..

msport

14 posts

214 months

Sunday 29th April 2007
quotequote all
When your air-con needs re-gassing you will know when it blows hot on a cold setting.
Cost about £85+VAT

anonymous-user

Original Poster:

61 months

Sunday 29th April 2007
quotequote all
msport said:
When your air-con needs re-gassing you will know when it blows hot on a cold setting.
Cost about £85+VAT

Thanks for your help, the bit that confused me was that the heater blows hot, when aircon turned off, when dial is at coldest setting. Its very hot air, a lot warmer than the outside temp. I thought that with aircon off it would just act as normal heater?, but I guess there's more too it than that. Re-gassing sounds a good place to start..

anonymous-user

Original Poster:

61 months

Monday 30th April 2007
quotequote all
jimboka said:
msport said:
When your air-con needs re-gassing you will know when it blows hot on a cold setting.
Cost about £85+VAT

Thanks for your help, the bit that confused me was that the heater blows hot, when aircon turned off, when dial is at coldest setting. Its very hot air, a lot warmer than the outside temp. I thought that with aircon off it would just act as normal heater?, but I guess there's more too it than that. Re-gassing sounds a good place to start..

Made a few calls, local Kwik fit charge £30 for re-gas, if it dosn't help its free! Sounds good to me.

DJ_AS

352 posts

214 months

Monday 30th April 2007
quotequote all
The fact that this problem is happening when the air con is off suggests that its the heater mixing valve thats died.

This is a common prob on the Ka/Fiesta/Puma. Basically, the solenoid switch that mixes the hot and cold water depending on what heat setting you have turned the dial to eventually dies and gets stuck open or closed. So you either get all cold air (like I did in the middle of winter...lovely...) or all hot air.

The valve is about £30 from Ford (though I have heard of people getting them from the scrappy for a few quid) and sits on the bulkhead between the engine and passenger cabin. I managed to change my own, although it helps if you have some decent tools (unlike me) and don't mind scuffing your knuckles lots.



tigger1

8,404 posts

228 months

Monday 30th April 2007
quotequote all
DJ_AS said:
The fact that this problem is happening when the air con is off suggests that its the heater mixing valve thats died.



yes

Lots of threads about the Ka heater matrix on here.

http://pistonheads.com/gassing/topic.

anonymous-user

Original Poster:

61 months

Tuesday 1st May 2007
quotequote all
Thanks for the advice, sounds like this is the problem. I've just ordered a new genuine Ford one off Ebay, around £25 delivered. I'll update with the outcome!. Many thanks from a new member..

anonymous-user

Original Poster:

61 months

Wednesday 9th May 2007
quotequote all
DJ_AS said:
The fact that this problem is happening when the air con is off suggests that its the heater mixing valve thats died.

This is a common prob on the Ka/Fiesta/Puma. Basically, the solenoid switch that mixes the hot and cold water depending on what heat setting you have turned the dial to eventually dies and gets stuck open or closed. So you either get all cold air (like I did in the middle of winter...lovely...) or all hot air.

The valve is about £30 from Ford (though I have heard of people getting them from the scrappy for a few quid) and sits on the bulkhead between the engine and passenger cabin. I managed to change my own, although it helps if you have some decent tools (unlike me) and don't mind scuffing your knuckles lots.

My 1st question on Pistonheads & great advice, thanks!
1 heater mixing valve / 1 hour / backache & skinned knuckles & the aircon/heating works again!.






Edited by jimboka on Wednesday 9th May 15:35

tigger1

8,404 posts

228 months

Wednesday 9th May 2007
quotequote all
jimboka said:
DJ_AS said:
The fact that this problem is happening when the air con is off suggests that its the heater mixing valve thats died.

This is a common prob on the Ka/Fiesta/Puma. Basically, the solenoid switch that mixes the hot and cold water depending on what heat setting you have turned the dial to eventually dies and gets stuck open or closed. So you either get all cold air (like I did in the middle of winter...lovely...) or all hot air.

The valve is about £30 from Ford (though I have heard of people getting them from the scrappy for a few quid) and sits on the bulkhead between the engine and passenger cabin. I managed to change my own, although it helps if you have some decent tools (unlike me) and don't mind scuffing your knuckles lots.

My 1st question on Pistonheads & great advice, thanks!
1 heater mixing valve / 1 hour / backache & skinned knuckles & the aircon/heating works again!.

Glad you got it sorted

DJ_AS

352 posts

214 months

Friday 11th May 2007
quotequote all
Well done Jimboka!

The knuckles will heal hehe

motorwise

401 posts

214 months

Sunday 13th May 2007
quotequote all
msport said:
When your air-con needs re-gassing you will know when it blows hot on a cold setting.
Cost about £85+VAT



you told you that?

nighthawk

1,757 posts

251 months

Sunday 20th May 2007
quotequote all
A little note to be aware of when buying ford parts across the internet

There are some bad heater control valves around as a result of a supplier modification to the part which can cause overheating of the engine or a similar problem to the one identified by the OP.

Without the correct paperwork you might not be able to claim a replacement under the fitted in service warranty.

I did have the part number for the affected valve somewhere, but I'm blowed is I can find it.

ChristianZS

2,640 posts

220 months

Monday 21st May 2007
quotequote all
nighthawk said:
A little note to be aware of when buying ford parts across the internet

There are some bad heater control valves around as a result of a supplier modification to the part which can cause overheating of the engine or a similar problem to the one identified by the OP.

Without the correct paperwork you might not be able to claim a replacement under the fitted in service warranty.

I did have the part number for the affected valve somewhere, but I'm blowed is I can find it.


I think its the 98 ones that are shiite..

I think Pumaspeed? sell the decent ones.

nighthawk

1,757 posts

251 months

Monday 21st May 2007
quotequote all
ChristianZS said:


I think its the 98 ones that are shiite..

I think Pumaspeed? sell the decent ones.


The suffix of the part number is the bit to look out for