by lee1980 » Thu Aug 04, 2011 7:39 am
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by bill88 » Thu Aug 04, 2011 8:53 am
by lee1980 » Thu Aug 04, 2011 9:33 am
by bill88 » Thu Aug 04, 2011 9:57 am
by lee1980 » Thu Aug 04, 2011 10:39 am
by lee1980 » Thu Aug 04, 2011 9:46 pm
by bill88 » Fri Aug 05, 2011 5:32 am
by lee1980 » Fri Aug 05, 2011 8:48 am
by bill88 » Fri Aug 05, 2011 12:49 pm
by lee1980 » Fri Aug 05, 2011 1:14 pm
bill88 wrote:Unless a Bosch expert can correct me, it looks to be all mechanical operation. No radio waves or magic. I believe the temperature is sensed by the long thin metal tube you can see in the photo. Thermal expansion/contraction would appear to cause the device to adjust the flap opening accordingly.I would think if the fridge compartment is 'too warm', the flap should be wide open to allow as much cold air to enter the fridge compartment when the fan is spinning. If it is 'too cold', the flap should be closed to reduce the cold air flow.When the flap is open, I would think you should be able to feel the cold air come into the fridge compartment if the fan is running correctly and provided there are no other blockages in the duct due to ice.(If you have not already worked it out, I think the fridge door switch is located near the temperature/control panel. Just push it in to simulate closing the fridge door. The internal light should go off too)
by lee1980 » Mon Aug 08, 2011 7:38 am
by nomadPaul » Mon Aug 08, 2011 5:41 pm
by lee1980 » Tue Aug 09, 2011 6:57 am
nomadPaul wrote:The fridge compartment on these appliances is nothing more than a big insulated box. The cold air is produced by the evaporator and blown by the fan up into the fridge. HOWEVER the cold air coming into the fridge will only come out of the very top grill/vent on the fridge rear wall. The main fault causing your symptons will be a frozen evaporator as this blocks the airways for the fan and stops air being blown into the fridge. IF THE EVAPORATOR IS ICED OVER AT THE REAR OR EVEN COMPLETELY , YOU WILL NOT SEE IT WITHOUT TAKING OFF THE COVERS IN THE FREEZER COMPARTMENT. Be warned that if you take the evap cover off , its difficult to refit !!A full 48hr defrost will normally temporarily clear the ice but the problem with that is that it may return .
by nomadPaul » Tue Aug 09, 2011 3:55 pm
by lee1980 » Fri Aug 12, 2011 10:19 am
nomadPaul wrote:If you can remove the evaporator cover in the freezer fairly easily and the evaporator is fairly clear of ice , then there is a good chance the defrost heater is ok - although only a full test of the heater will confirm this. It might be worth doing the full 48hr defrost and then seeing how it performs with regards to the fridge temps. If , after the defrost , the freezer works fine and you can hear the fan running ok , then the temp reg does sound a feasible call....although a failure of one is rarer than hen's teeth ?
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