Originally Posted by Burgundymog
Originally Posted by JohnHarris
It maybe nothing at all to do with this, I have a 2008 Roadster that was retro fitted with Morgan air conditioning system. It has a separate on -off switch located under the dash for the air conditioning condenser fans. With the car moving at speed, the passage of air thru the condenser is sufficient to cool the air for the air conditioning to operate cold. However, in congestion or slower moving traffic (with less air movement thru the condenser) the fans have to be turned on for the air conditioning to remain cold, you can of course choose to just leave the fans on all the time. I find in temperatures above 85F with the roof down the air-conditioning (which has been recently fully serviced and gassed up) struggles to cool the car (haven't tried with the roof up at those temps) Has the air-conditioning refridgerant levels been checked, could it be low, as it does deplete over time?


The A/C on my 2013 +4 is best described as cool rather than cold despite a service, I am not aware of any fans on the condenser could those on yours be an aftermarket fit ?to improve efficiency.



Mine is a Morgan supplied air-conditioning system all Morgan parts , it's the earlier under slung air conditioning condenser fitted to the Roadsters and +8 that has a twin electric fan shroud. I'm not sure how the later system works which has the condenser mounted with the water radiator and uses the single fan for cooling both the water rad and the condenser. Whether the electric fan is triggered independently on by both the water temperature sensor and any air conditioning sensor, I'm not sure. If the fan is only triggered by the water temperature sensor ,I can understand why there may be intermittent performance from the air conditioning as it would subject to the passage of air at speed through the condenser if the fan is not on.

Last edited by JohnHarris; 28/08/21 05:41 PM.
22 Plus Four KIMI
12 Plus 4 Sport OZZY
08 Roadster FELIX
06 4/4 70th LOKI
77 4/4 SEAMUS
85 4/4 MOLLY