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9th July 2009, 12:35 | #1 |
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Rover 75 2.5 V6 Connoisseur se Join Date: May 2008
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Temperature control mystery
When I turn on any function on the heating / aircon on my 1999 75 connoisseur 2.5 the temperature on both sides reads 22'C, then immediately changes to an "er" error message. This stays there even when turned off and only goes away completely when the ignition is switched off.
All the functions seem to work but seem to be fixed at one temperature,which I assume is 22'C. The only related issue is that the rear window heater seems to have stopped working at the same time. I have:
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9th July 2009, 12:47 | #2 |
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check for water in the plenum
if dry, find a member close to you and swap control panels...
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David Impecunity is the mother of ingenuity Useful how to's for common problems Car Of The Month Jan 2014 [SatNav Power Down] [Coolant Level] [SatNav Repair] [Diesel Non Starting] [Paint Codes] [Rear Light Seals] [Reversing Light Switch] [Bleeding Brakes][Sunroof Drain] [Early ZT's][Instrument Pack Diagnostics][ATC Diagnostics] |
9th July 2009, 18:55 | #3 |
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Check the fuses for the ATC panel itself.
My guess is the ignition feed is OK, but there's a permanent feed too. This is used to remember your settings when the ignition is off, but will also be used for other things, for example closing the recirc flap when you switch the ignition off (that funny whirring sound). Could easily explain your symptoms. Edit: In fact there are three. Permanent (fuse 4) auxiliary (fuse 33) ignition (fuse 11). All based on workshop manual for an original version so check your handbook. Last edited by Departed; 9th July 2009 at 18:59.. |
9th July 2009, 19:25 | #4 |
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In addition to the good advice above it may be worth running the ATC diagnostics routine. Details here:
http://www.the75andztclub.co.uk/foru...hread.php?t=46 hth
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Mike [SIGPIC][/SIGPIC] |
9th July 2009, 22:04 | #5 |
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Rover 75 2.5 V6 Connoisseur se Join Date: May 2008
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Thanks to everyone for the great advice. I think I will try them all tomorrow
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