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TSB info Posted by Andy [Email] (#759) [Profile/Gallery] (more from Andy) on Fri, 2 Feb 2001 01:57:06 In Reply to: broken heater or heater fan....help!, matthew, Mon, 29 Jan 2001 10:50:10 Members do not see ads below this line. - Help Keep This Site Online - Signup |
My fan just went last November and it turned out to be a faulty fan speed control module. There's a really detailed TSB that describes the replacement. I've heard this is a common failure. Of course, mine just failed and never worked, unlike yours which worked intermittently.
Also, if your model is a '94, there was another (different) problem with the blower motor in freezing temperatures.
Excerpt from TSB 871-1847 980101 Ventilation Fan, Faulty Speed Control
"If the ventilation fan controls do not work or if the fan does not work at all, it could be caused by the fan control unit."
"A new version of the fan control unit has been introduced in production. It is very important that when replacing it, the new fan control unit is fitted correctly to ensure good heat transfer to the cooling plate/ bracket in the evaporator. If it is fitted incorrectly, malfunctions can occur, limiting the service life of the fan control unit."
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