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        General >> Problems >> heater control switch
        
(Message started by: mick_66 on Nov 20^th, 2008, 8:22pm)

Title: heater control switch
Post by mick_66 on Nov 20^th, 2008, 8:22pm

Hi all,

Recently bought scorpio,so am quite new to this.and joined forum maybe 2 weeks or so ago.

I have a problem with my heater. car is 1998 2.3l ultima model.

I have little air flow from heater.Control knob has no effect on volume of airflow.
Aircondition comes on but is not at full pelt. when air con turned off,the flow is the same.

Any info would be greatly appreciated.

Thanks again for welcome to site. :)

Title: Re: heater control switch
Post by gost on Nov 20^th, 2008, 8:35pm

Mick66, probably Heater Blower Cobtrol, no doubt someone will be along soon to advise u

Title: Re: heater control switch
Post by Highlander on Nov 20^th, 2008, 8:43pm

Sounds like it, have a look here

http://www.fordscorpio.co.uk/hbctest.htm
http://www.fordscorpio.co.uk/fanrepair.htm

Title: Re: heater control switch
Post by mick_66 on Nov 20^th, 2008, 8:57pm

thanks for the quick reply.
Will be weekend before i get to it.

mick.

Title: Re: heater control switch
Post by Highlander on Nov 20^th, 2008, 9:04pm

might be a fuse of course ;)

Title: Re: heater control switch
Post by mick_66 on Nov 29^th, 2008, 4:21pm

Hi

I have checked the fuse and its seems ok(f29 30amp).

To check hbc.i take it i need a voltmeter,which i aint got.is there any other way to check this b4 i set about the motor.

thnx in advance. mick

Title: Re: heater control switch
Post by Simmo on Nov 29^th, 2008, 8:43pm

Have you tried the procedure shown in Highlanders first reply re testing the HBC?. That does not require a meter.

Title: Re: heater control switch
Post by mick_66 on Nov 29^th, 2008, 9:54pm

Doh!! Am totally Dumb :D. will give it a go tomorrow definately.thats why i dont do electrics..
will keep u posted.
thnx again..mick

Title: Re: heater control switch
Post by mick_66 on Nov 30^th, 2008, 12:26pm

ok done the hbc test,getting no air from heater at all.checked fuse f29 again,still intact,also done the fault code check,again nothing to report 00 on led's..
Can anyone assist me in getting a hbc unit and how much would it cost? if not that then do I have to remove the motor. :-[ thnx again.

Title: Re: heater control switch
Post by scorpio_man on Nov 30^th, 2008, 1:30pm

hi there

are the fans running? is there a difference in heat between drivers side and passenger side (lo on pass side, hi on drivers side)?

if you disconnect the ribon cable from the rear of the face panel, this will bring the fans on is high speed mode.

does this work?

hth

Title: Re: heater control switch
Post by mick_66 on Nov 30^th, 2008, 2:15pm

hi scorpio man,
no fans on either sides.will give ribbon cable a try.
thnx mick

Title: Re: heater control switch
Post by mick_66 on Nov 30^th, 2008, 3:54pm

hi , scorpio man
got into ribbon cable and disconnected.. still same as..no fans when ignition switched on and when eng runs. what next?lol ....thnx mick

Title: Re: heater control switch
Post by scorpio_man on Nov 30^th, 2008, 4:13pm

hi there

http://www.fordscorpio.co.uk/fanrepair.htm

hth

Title: Re: heater control switch
Post by mick_66 on Nov 30^th, 2008, 4:25pm

yes i feared i'd have to strip that out,highlander did say in a previous post..but i was delaying the inevitable..fingers crossed this time tomorrow al have heat!!!. ;)
ps any tips on control knob replacing they seem very tricky ???..
thnx again

Title: Re: heater control switch
Post by mick_66 on Dec 1^st, 2008, 3:06pm

;D Good news.got into it this morning,got heater motor out. and tested it,worked perfectly fine.i was absolutely delighted.
put it all back together and hey ,heater working...bit noisy at 1st but did calm down. ;D.works on all settings.

thnx to all for info on this.mick

Title: Re: heater control switch
Post by Simmo on Dec 1^st, 2008, 5:04pm

Glad to hear you're sorted Mick. Can you just indicate if you followed the link which Scorpio Man put up or did you find an easier/different way. Be usefull to know as the problem of 'non working' fans keeps cropping up. Did it just require WD40 or similar once you'd got access?. If so could access for lubrication be obtained without wholesale cutting of the unit?. ;)

Title: Re: heater control switch
Post by mick_66 on Dec 1^st, 2008, 7:25pm

to all, link i followed was fanrepair.htm .every step was detailed and photo s meant easier to follow than i had imagined.
when i got motor out i noticed slight rust around main shafts of motor.everything else was in good nick,sprayed wd40 on it,dried it off and tested off battery with 2 wires (followed wiring diagram on hbc test,dont know if it mattered but wasnt taking any chance.) theres only 2 wires on motor black/red went to neg battery side and on it went full pelt.
at that stage i breathed a sigh of relief ;) hoovered out lightly any grime that was inside before replacing as reverse jus as link states.

with regarding access to unit,i think you've jus made a good point there,looking at the last photo of the motorand the the 1st photo,i think maybe two cuts in casing either side of the hbc would maybe do,
could even adapt the hoover with a small tube to hoover out any dirt.
You got me think now ::)
thnx mick.

Title: Re: heater control switch
Post by Simmo on Dec 1^st, 2008, 8:24pm

Thank you Mick. You've obviously got my drift. I wonder if a hole drilled in the casing at the correct location,and subsequently plugged with, say, a grommet, might be all that is needed to get the spray to the right spot. ;)