focus -Heater Stopped

ukste1349 · 07-02-2010, 06:27 PM

Foucs T reg 1999 1.8

Heater Stopped working completely No power at any numbers.
A/C Light still coming on when you press it.

Sounds coming from heater motor when you turn heat direction switch.

I have taken off the resistor pack and all looks ok, is their any tests I can do on it?

Does this sound likee it is a resistor fault or somthing elese?

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ukste1349 · 13-02-2010, 03:25 PM

updat.....

got a brand new replacement Resistor 100% checked.....attached it to blug under dash still nothing worked.

when I took the resistor back out of glove box I knocked it agains the metel under the glove box and a spark shot off it then the motor started to blow cold air.
I moved the resistor away from the metal and the motor stopped blowing.

anyone got any ideas please.....this car is driving me mental!!!!!!!

pdfbt40 · 13-02-2010, 10:42 PM

The resistor pack and switch are on the ground side of the blower motor circuit.

Touching the resistor pack against metal will provide a ground for the current needed by the blower motor.

Have you checked the switch itself? They are know to fail so a ground is not available for the motor. Hence no running at any position, unlike the resistor pack (thermal fuse failure) 1-3 not running.

Martin

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13-02-2010, 03:25 PM	#2
ukste1349 Virgin Garage is empty, add now Trader Score: (0) Join Date: Feb 2010 Location: liverpool Posts: 4 Rep Power: 0	updat..... got a brand new replacement Resistor 100% checked.....attached it to blug under dash still nothing worked. when I took the resistor back out of glove box I knocked it agains the metel under the glove box and a spark shot off it then the motor started to blow cold air. I moved the resistor away from the metal and the motor stopped blowing. anyone got any ideas please.....this car is driving me mental!!!!!!!

13-02-2010, 10:42 PM	#3
pdfbt40 PassionFord Regular 2003 Ford Focus Trader Score: (0) Join Date: Mar 2005 Location: Guildford, Surrey Posts: 364 Rep Power: 7	The resistor pack and switch are on the ground side of the blower motor circuit. Touching the resistor pack against metal will provide a ground for the current needed by the blower motor. Have you checked the switch itself? They are know to fail so a ground is not available for the motor. Hence no running at any position, unlike the resistor pack (thermal fuse failure) 1-3 not running. Martin

13-02-2010, 10:42 PM
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