im sure ive read on here before about this, but cant find anything!

basically it seems that on my puma, it doesnt matter if you turn the heater to hot or cold, it stays the same temp - about half way at a guess...

what needs to be done to make it cold when you turn it to cold, and hot when you turn it to hot lol??

its a common thing, but i cant remember

cheers all

 

heater valve on bulkhead about 25quid from ford, doddle to fit, dont use cheap non genuine ones as they dont last

 

yep heater control valve. they either size up or the pipes break off

 

cheers boys. any idea what it looks like, and where it is lol??

if its the bulkhead, is that inside the cabin or engine bay?

cheers all

 

its in the middle in the engine bay just below the windscreen.

http://www.ebay.co.uk/itm/GENUINE-FO...a#ht_500wt_835

 

nice one, cheers mate

 

ok, i won the one matey posted above, that clearly states its a GENUINE FORD valve..

http://www.ebay.co.uk/itm/ws/eBayISA...:B:BCA:GB:1123

got it today, and nowhere on it does it say ford! the one on the car has white writing on it that says ford, so have been sold a pattern part??

its also not the one in the pic as it doesnt say AP on it....

hmm

the writing on it says

7N21 18495AC
P557A 16/10

 

Just did the HCV on my Puma recently too, common fault mate

 

did you buy what you thought was a gen ford one tho, only for it not to say ford on?

 

it should come in the box with ford on it.

FINIS 1714716 and 7N21 18495 AC is the later part number and engineer number youll find.

Should still come in the right ford box

 

I replaced the hcv on.my wifes mk5 fiesta. I bought a cheap non ford one. its been on the car now for over a year. I know that sometimes when the heater controls have been turned to cold a few timesthe heaters have still blown out hot air.

This has only happened a few times.

 

If it hasn't got Ford ANYWHERE on it then its not genuine....

I sell (well try not to) non genuine 1's and they are shite...!!!! I also sell (prefer these as they actually work for more than a nano second) genuine 1's reboxed by a company called ADL and never had a problem...

 

Mine was genuine bud, bought it from Ford. I have gone down the ebay/replica version which is shite!

 

phone them up and ask them what the feck is going on.

 

cheers lads, might give them a call!

it deffo has 7N21 18495 AC in white marking written on it, but i would expect to see the ford logo either in the plastic casting or printed on it like the one on the car at the mo.

it does have some cast markings that say PPE - PA - GF30 2

Also the box it came in is covered in fragile tape, but underneath i can see stickers that say:

'new type 2011'
'the original brandm OES original equipment spares'
'heater valve 1451981-0'

i cannot see ANY ford markings on the box either!

 

mmmm sounds like a copy to me.

on most ford parts the engineer numbers and ford logo are embossed in the moulding somewhere, not printed on numbers.

 

well the one on the car has the ford logo in the white print, but i have not taken it off to look yet. i will call the place i got it from to query it!

cheers bud

 

i would give ford a ring first, ask them if they would produce one without a logo.

 

I too am having this problem on my mk5 fiesta , I have changed the heater control valve and the control switch panel and it is still blowing cold air
There is power up to the hcv
Do you need water runnig through the hcv to make the valve work ? i would not have thought so with it being controlled electrically if i hold the hcv off the car you can blow through the unit ,as soon as it it connected to the plug the valve closes and you cannot blow through it ,but does not open again when you turn the heater switch to hot in the car , should this be able to open while the unit is not connected to the water pipes ?

What else could the problem be if it is not the hcv and the switch panel

 

yes the valve should open with no water going through it, if you have the ignition on and plug one in it should move when turned from hot to cold.

i still have the one i bought unsued as i tried the above method and it still wouldnt move.

so i got another control panel from the scrappers and fitted that and the original valve is still working fine... but at least i have a spare

 

I thought it might be the control panel after the new HCV still did not open when i turned the switch from cold to hot , so i went to the scrappers yesterday for a new control panel and the valve still does not open when its connected
There is deffo power going to the plug as I have tested it

Im baffled ,as its now had hcv and switch control panel

 

hmm, not so sure then mate.

does the voltage change when you meter the connector and then turn from hot to cold?

ill have a look at mine tomoz if i get chance and report back. ive broke my ankle so got a bit of time on my hands lol

 

Advert seems to think they are selling genuine ones; (note bottom line)

BRAND NEW GENUINE FORD HEATER CONTOL VALVE
THIS IS THE NEW UPDATED 2007 REPLACEMENT PART OLD FORD PART NUMBER WAS 98FU 18495-AB NEW NUMBER IS 7N21 18495AC FORD RETAIL OF Ł43.20 WILL FIT MODELS
FORD FIESTA 96 -2001 MK4/MK5
FORD KA 97 - 2006 ALL MODELS
FORD PUMA 98 - 2005 ALL MODELS
FORD TRANSIT 94 - WITH AIR CON
PHOTO SAMPLE ONLY

 

There's 3 pieces to the puzzle with this common failure. HCV, Control Panel, and Heater resister. Sounds like there's only 1 u haven't tried....

Matt

 

Where would I find the heater resister?

 

around the passenger footwell i think.

wife has just taken the kids swimming so ill pop out in a min and see if i can test the power to the valve.

hopefully the batt isnt flat tho, cars not been used for 2 months

 

ok, i had a look at mine earlier and with the engine running i put my meter across the plug that goes on the valve and the most i seen while turning from hot to cold was about 2.75V. works fine tho and deffo goes from hot to cold.

ive packed away the spare valve so cant check it on that.

hth

 

I have changed the hcv and the control panel , the hcv is pulsing when heater is halfway , and if i leave the 2pin plug off the hcv i still dont get hot air , when the plug is left off this leaves the valve open so hot water should be passing through the valve , all pipes are hot up to the valve , although the bottom hose doesnt get as hot as the top hose , ive flushed and reverse flushed the the heater matrix but i am still not getting hot air out of the heater

 

not the thermostat is it?

or water pump failed

 

Pretty sure its not the thermostat as the temp gauge is working to half way , it never goes higher though no matter how long i leave the car running the fan does not kick in either.

If it was water pump failure would the car not over heat?

 

Thread now moved to puma section.....never to be seen again

 

LOL

sorry mate, im out of guesses now!

 

Out of the blue the car suddenly started blowing hot air from the vents , but only when its being revved , at idle the heater goes back to cold , so i think the waterpump may be at fault