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Lluís Gimeno-Fabra
Frequent User Username: lluís
Post Number: 457 Registered: 08-2007
| Posted on Saturday, 13 June, 2020 - 02:41: | ![Edit Post](http://au.rrforums.net/forum/icons/tree_s.gif) ![Delete Post](http://au.rrforums.net/forum/icons/delmsg.gif) ![View Post/Check IP](http://au.rrforums.net/forum/icons/checkip.gif) |
Dear all, There are three thermal switches in the thermostat pedestal, 105, 87 and 45 °C: is thre anyone that knows what do they do. I checked them as part of the maintenance process, and only the 105°C works (the others are probably shot in a contantly closed position). Does anyone know what do they do? I guess the twin fans were activated by the 105, but actually they are connected to the 45 (labelled ACU in IETIS). Why? THANKS Thanks, Lluís |
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Jim Walters
Frequent User Username: jim_walters
Post Number: 312 Registered: 01-2014
| Posted on Saturday, 13 June, 2020 - 04:46: | ![Edit Post](http://au.rrforums.net/forum/icons/tree_s.gif) ![Delete Post](http://au.rrforums.net/forum/icons/delmsg.gif) ![View Post/Check IP](http://au.rrforums.net/forum/icons/checkip.gif) |
The 45° degree normally closed thermostatic switch inhibits AC fan operation until the engine coolant temperature reaches 45°C so one does not have cold air blowing on them when engine is first started. This is the one that commonly fails preventing operation of the air conditioning system. It is also referred to as the 44° sensor in some publications.
SRH8505 SRC18015 SRE22493 NAC-05370 www.bristolmotors.com |
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michael vass
Frequent User Username: mikebentleyturbo2
Post Number: 668 Registered: 07-2015
| Posted on Saturday, 13 June, 2020 - 04:54: | ![Edit Post](http://au.rrforums.net/forum/icons/tree_s.gif) ![Delete Post](http://au.rrforums.net/forum/icons/delmsg.gif) ![View Post/Check IP](http://au.rrforums.net/forum/icons/checkip.gif) |
Thanks useful for me too, my O rings (ue34219) are leaking and I've got to strip it down tomorrow ugh! |
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Jim Walters
Frequent User Username: jim_walters
Post Number: 313 Registered: 01-2014
| Posted on Saturday, 13 June, 2020 - 04:56: | ![Edit Post](http://au.rrforums.net/forum/icons/tree_s.gif) ![Delete Post](http://au.rrforums.net/forum/icons/delmsg.gif) ![View Post/Check IP](http://au.rrforums.net/forum/icons/checkip.gif) |
Here is another one:
SRH8505 SRC18015 SRE22493 NAC-05370 www.bristolmotors.com |
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Jim Walters
Frequent User Username: jim_walters
Post Number: 314 Registered: 01-2014
| Posted on Saturday, 13 June, 2020 - 05:02: | ![Edit Post](http://au.rrforums.net/forum/icons/tree_s.gif) ![Delete Post](http://au.rrforums.net/forum/icons/delmsg.gif) ![View Post/Check IP](http://au.rrforums.net/forum/icons/checkip.gif) |
And the legend to the one above:
SRH8505 SRC18015 SRE22493 NAC-05370 www.bristolmotors.com |
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Lluís Gimeno-Fabra
Frequent User Username: lluís
Post Number: 458 Registered: 08-2007
| Posted on Saturday, 13 June, 2020 - 16:53: | ![Edit Post](http://au.rrforums.net/forum/icons/tree_s.gif) ![Delete Post](http://au.rrforums.net/forum/icons/delmsg.gif) ![View Post/Check IP](http://au.rrforums.net/forum/icons/checkip.gif) |
And does anyone one what does the heater switch do? Annoying as I wanted to use these switches to control my new cooling fans... |