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Topic: Blower Speed (Read 545 times) |
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leftofcentre
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24v ultima. Blower fan speed has mind of its own. when dial turned upto max (or any speed for that matter) the fan works ok but stops starts intermitantly and the speed seems to change by itself. And NO the dial is not at AUTO Sometimes i turn the duial to max and the fan blows at max, then stops, then starts, then stops and so on... Any suggestions and what parts i need? Cash waiting...
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leftofcentre
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have just read about thermal runaway but this is winter and minus degrees!
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locky
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Re: Blower Speed
« Reply #2 on: Dec 31st, 2005, 8:54pm » |
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Sounds like the HBC Module. They are prone to failing, what happens is they overheat and automatically switch off, once it cools down, it switches back on. And that's what you're getting. I recently purchased one from Ford finnis code 1017490 @ a cost of £90. Try this link too, it shows how to test, and what they look like. http://www.fordscorpio.co.uk/hbctest.htm HTH
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David_South_West
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Re: Blower Speed
« Reply #3 on: Dec 31st, 2005, 9:12pm » |
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I had the same problem .Managed to find one at a breakers.Only a couple of minutes to take out .My original didn't have the large heat sink on the bottom.A couple of quid and all sorted
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armatec
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Re: Blower Speed
« Reply #4 on: Jan 4th, 2006, 1:07am » |
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mine was doing the same , but now the blower runs all the time ... only way to turn it off is to take the key out .. is this down to the h.b.c.module plzzz help
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Geoff_W
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Re: Blower Speed
« Reply #5 on: Jan 4th, 2006, 10:44pm » |
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Armatec, Probably not, however if you know somebody else with a Scorp with a HBC that is working see if you can swap HBCs with them to check it out if problem continues, you have a wiring fault. Other thing that you can do is check the fault codes, follow this link to find out how http://www.fordscorpio.co.uk/ccreset.htm You will see it refers to codes like 01, 02, etc if you see a 51 or 52 etc that means the same thing. 07 or 57 indicates a possible HBC fault. Good luck, welcome and Happy New Year Geoff
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armatec
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Re: Blower Speed
« Reply #6 on: Jan 5th, 2006, 12:53pm » |
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cheers geoff just tried it, it is coming up with the following codes.. 1st one showing is 57 .. when i press the button on the display it changes to 50. can you translate roughly what this means i know the 57 is HBC problem but whats the 50 mean?? anyone who can help me with this it would be much appreciated ? yhanks kev
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Snoopy
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Re: Blower Speed
« Reply #7 on: Jan 5th, 2006, 3:35pm » |
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50 is a "normal" display showing NO FAULTS read here http://www.fordscorpio.co.uk/ccreset.htm its ALL explained
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armatec
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Re: Blower Speed
« Reply #8 on: Jan 6th, 2006, 12:09am » |
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thanks snoopy.. much appreciated so a new HBC should fix it
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Geoff_W
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Re: Blower Speed
« Reply #9 on: Jan 6th, 2006, 1:09am » |
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Kev, Looks like a HBC problem but having interrogated the codes got to 50 did you follow the rest of the instructions? If you carried out a reset it may behave for a while, the HBC tends to overload in hot situations when using continous fan, which is why Ford riveted an aluminium plate onto the bottom of it to help the heat sink. The only thing is that the HBC shown in the illustration (marked as 13) is the original version without the added plate. If you remove your existing one, easy job two cross point screws and three squeeze cable connectors and find that the HBC does not have the plate added you need a new one in any case. That is also probably why you are having the problem, that and a couple of hot summers Geoff
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armatec
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Re: Blower Speed
« Reply #10 on: Jan 6th, 2006, 10:34pm » |
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thanks geoff ... dont suppose you got a spare h,b,c.around anywhere have you ? lol many thanks for all your help you guys ..... kev
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Geoff_W
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Re: Blower Speed
« Reply #11 on: Jan 7th, 2006, 12:11am » |
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Sadly no Kev, I could do with a couple to play with to see if I can improve on the heat sink to reduce risk of failure. Anyway have you had chance to see if your HBC is one of the improved type? Geoff
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