Guest wiser Posted November 28, 2008 Share Posted November 28, 2008 Hi, The heater blower on my mk 6 stopped yesterday. I had the multimeter out and seem to get a reading at the fuse box, at the switch and at the end of the connector that goes to the resistor. (10. 6v at connector). If I directly wire battery to blower, it works. If I wire from multiconnector to the blower it doesn't. Is this because I am only getting a low voltage? (12v at the battery). It obviously does not need the resistor as it works from the battery. PLease help cause I do not want to pay £30 for a new resistor and find it still does not work. Any help much appreciated! Link to comment Share on other sites More sharing options...
Guest Cabbytech Posted November 29, 2008 Share Posted November 29, 2008 (edited) The heater blower switch has 3 speeds on it, i would think your blower should still work on position 3 as this is full voltage to the blower, and bypasses the resistors for the slower speeds, if not,check for 12v on the violet/black wire to the switch with your ignition on, you could always put a direct link from the battery to this wire to see if the heater works through the switch on all speeds, if you do put a bypass wire straight from the + on the battery, as a precaution put an inline 20A fuse in it as close to the battery as you can. Let me know how you get on, and we will take it from there if it still doesnt work. Edited November 29, 2008 by Cabbytech Link to comment Share on other sites More sharing options...
Guest wiser Posted November 29, 2008 Share Posted November 29, 2008 Hi, Thanks for your reply. I have now been able to determin that there is no issue with anything after the switch. The switch is also fine having had some help from a neighbour we connected it to the resistor and put a live from bat to center prong. All worked. I have now taken a live from both battery and fuse box ( although the fuse that implies it is the fan is not as it was still live!). I took this directly to the connector for the switch and the blower works fine. There is (when engine running) 12.3v from the center of the connector (i.e. live to the switch). If I connect from this to the connector back to the fan (i.e. bypassed the switch at its connector) and nothing! Will try to break the live to the connector but it makes no sense as to why it does not work. Thanks for your help. Link to comment Share on other sites More sharing options...
Guest wiser Posted December 1, 2008 Share Posted December 1, 2008 Hi, I seem to have fixed it. I've taken a new supply from the fuse box, through an inline blade fuse to the power connector on the switch. It all works fine now! Link to comment Share on other sites More sharing options...
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