jen90csw Posted January 17, 2010 Share Posted January 17, 2010 Hi all, I have had a rather annoying problem with my in car heat (or lack of)in my 1996 90csw. The problem started approx three weeks ago, with the in car heater fan only working intermittently, ie not working for miles then suddenly cutting in, then it would work ok for a few days and then the burning smell started,which seemed to come from the area of the heater box under the bonnet on the nearside. Now the heater is not working at all. Any ideas where to start with the diagnosis of what is the most likely failed component? Many thanks Jen. Quote Link to comment Share on other sites More sharing options...
bleyseng Posted January 17, 2010 Share Posted January 17, 2010 I would put good money on it that the fan motor has burned out or seized. Just like mine! Try undowing the screws that hold the intake grille down ontop of the n/s wing. When the grille is removed put your hand inside the wing and try and move the fan. If it moves freely then its likely the motor/fan is ok and the burning smell and lack of fan spinning is due to another electrical fault. Western told me this only yesterday! Quote Link to comment Share on other sites More sharing options...
western Posted January 17, 2010 Share Posted January 17, 2010 Try that first, if the motor/fan is stiff or won't turn, you need to remove the heater unit to replace the motor Quote Link to comment Share on other sites More sharing options...
Litch Posted January 17, 2010 Share Posted January 17, 2010 Easy enough job to do, just don't be tempted to use a secondhand motor as who is to say that won't fail again soon? New motors are cheap enough (about £40) and you will need new foam seals as well (don't use silicon or similar as it makes removing the heaterbox a real pain in the future). Quote Link to comment Share on other sites More sharing options...
errol209 Posted January 18, 2010 Share Posted January 18, 2010 Could also be the ballast resistor, mounted under a small plate on top of the fan housing, burning out, but low speed should still work if this were true. You can sometimes free up a stuck or sluggish motor with a liberal application of WD40, but it won't fix a burnt out one. Quote Link to comment Share on other sites More sharing options...
jen90csw Posted January 18, 2010 Author Share Posted January 18, 2010 Hi all, thanks for the prompt replies, looks like another weekend under the bonnet then!! Quote Link to comment Share on other sites More sharing options...
errol209 Posted January 18, 2010 Share Posted January 18, 2010 Bo**ox, I meant High Speed should still work, sorry, pressure of work ... Quote Link to comment Share on other sites More sharing options...
jen90csw Posted February 1, 2010 Author Share Posted February 1, 2010 Hi all, Stopped snowing long enough to be tempted outside(wimp )! Blokes are marvelous things aren't they, especially when they carry out Landy repairs that cost nothing, yes Nothing! Anyway enough praise or he'll get bigheaded. Seems that the dodgy/intermittent/burning smell/etc etc were all down to a dodgy connection. Wires had worked loose and connector full of gunk & corosion. The two halves of the old connector are now "welded" together with melted plastic,hence the smell. New connector block & copious amounts of insulating tape later and a bodge to be proud of. Still im very lucky that the 90 didnt go up in smoke as the heater would burst into life ,if i had not turned it off when it failed, (soon remembered when the smell started!) Quote Link to comment Share on other sites More sharing options...
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