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Topic: heater blower switch (Read 877 times) |
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scorpio197
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heater blower switch
« on: Jul 25th, 2009, 6:51pm » |
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could some one please tell me if the heater blower switch is the same on all models regardless of A/C or climate or neither.I have disconected mine on setting two as it shorts ,cant see how it can be the blower motor because it works well on setting one and three .
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Simmo
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Re: heater blower switch
« Reply #1 on: Jul 25th, 2009, 9:26pm » |
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I can't answer the precise question BUT there is a known problem, similar to yours, in cars fitted with Air Con,as opposed to climate control. The details are HERE so it may be worth a check.
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gozz
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Re: heater blower switch
« Reply #2 on: Jul 25th, 2009, 11:10pm » |
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197. Do you mean the dashboard switch ? if so cars with climate control don't have one as such,but a control for the automatic module. The unit to which Simmo refers is a simple rheostat motor control fitted into the top of the evaporator housing,and is a regular source of problems. GOZZ.
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scorpio197
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Re: heater blower switch
« Reply #3 on: Jul 26th, 2009, 11:07am » |
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thanks for the reply ,I got a new resister from FMD but still have the same problem ,in fact I got a second new one because I thought the first was faulty ,The new ones are much larger and it is not easy to fit them into the housing ,you have to squeeze the resister coils a bit to get the unit into the housing ,but anyway same problem ,works on 1 and 3 but had to disconect the wire for setting 2 because it started to smoke /short .This makes me think it could be the dashboard switch at fault .but the only switch I have spare I took out of a 2 litre executive that did not have aircon I just needed to know if the switch was the same ...regards david
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gozz
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Re: heater blower switch
« Reply #4 on: Jul 26th, 2009, 12:50pm » |
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197. The three positions are the same as cars with no aircon at all,as is the rheostat,however the aircon would need the push in to switch the compressor on. I would be looking for a shorting wire between the switch and rheostat first. GOZZ.
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Robzere31
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Re: heater blower switch
« Reply #5 on: Jul 26th, 2009, 5:04pm » |
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on Jul 25th, 2009, 9:26pm, Simmo wrote:I can't answer the precise question BUT there is a known problem, similar to yours, in cars fitted with Air Con,as opposed to climate control. The details are HERE so it may be worth a check. |
| Would you happen to know the operating temp of the thermal fuse? I have the same problem 1 & 2 not working but 3 is fine. Shorted the thermal fuse (which was missing) & blower works fine. Only thing was the coils starting getting very very hot after about 30 seconds. Alternativly, if someone has the complete unit for sale from a breaker, I'd be happy to buy one.
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Snoopy
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Re: heater blower switch
« Reply #6 on: Jul 26th, 2009, 5:14pm » |
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the fix for the termal switch is HERE Really easy to fix It relys on the air flow past it to keep it cool .
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Robzere31
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Re: heater blower switch
« Reply #7 on: Jul 26th, 2009, 6:24pm » |
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on Jul 26th, 2009, 5:14pm, Snoopy wrote:the fix for the termal switch is HERE Really easy to fix It relys on the air flow past it to keep it cool . |
| Yep, I've already read that, but I need to know what rating fuse I need to use. I can get my hands on fuses rated from 110 up to 239.
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lesterlad aka Rodders
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Re: heater blower switch
« Reply #8 on: Jul 26th, 2009, 9:38pm » |
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I used a 128c from Maplins on mine, been working ok for the last 3 or 4 weeks. I believe the original was 110c
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Robzere31
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Re: heater blower switch
« Reply #9 on: Jul 26th, 2009, 9:49pm » |
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on Jul 26th, 2009, 9:38pm, lesterlad wrote:I used a 128c from Maplins on mine, been working ok for the last 3 or 4 weeks. I believe the original was 110c |
| Thanks.
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gozz
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Re: heater blower switch
« Reply #10 on: Jul 26th, 2009, 9:59pm » |
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Robzere. I got the magnifying glass out,it says 121C on the thermal fuse. GOZZ.
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lesterlad aka Rodders
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Re: heater blower switch
« Reply #11 on: Jul 26th, 2009, 10:38pm » |
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Ahh, that's it Gozz 121C for the original, I knew there were two 1's in the equation somewhere
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Gazza_UK
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Re: heater blower switch
« Reply #12 on: Jul 27th, 2009, 12:15am » |
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on Jul 25th, 2009, 6:51pm, scorpio197 wrote:because it works well on setting one and three . |
| Well its deffo not the thermal fuse if it works on 1 and 3 so its got to be the switch contacts or the wire onto the module Or even the middle coil itself you will have to meter it out I think its volt meter out and test power from switch to module and go from there
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