Electrolux SANTO 2902i, Service Instruction

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AEG-Refrigeration 292 5209
87
VH34-AUK 06.94
Santo 2941i longfresh E-Nr.: 621 370 121 (R12)
Santo 2902i longfresh E-Nr.: 621 371 022 (R134A)
Code LCD Meaning possible cause of fault
F7 KT longfresh-air temperature too sensors crossed, appliance was not3
warm compared to refrigerator sufficiently warm prior to test, magnetic
evaporator temperature valve not switched
F8 KT refrigeration evaporator not sensors crossed, cooling system
cooled sufficiently in pre-set in refrigerator blocked
time period
F9 KT refrigerator air temperature not sensors crossed, sensor attachment
cooled sufficiently in pre-set defective
time period
FA KT refrigeration evaporator too sensors crossed, appliances was not
warm compared to refrigerator sufficiently warm prior to test
air temperature
FB KT freezer air temperature not sensors crossed, freezer condenser
cooled sufficiently in not running
pre-set time period
Fault codes SA-FO are diagnosed and displayed during normal refrigerator operation.
Fault codes F1-FB are diagnosed and displayed during the self-test only.
The following faults cannot be detected by the electronic during self-testing:
- defective refrigeration fan (blocked impeller, broken winding...)
- defective compensation heating
11. Further hints for fault diagnosis
A magnetic valve that is not switched can be recognised by the fact that the refrigeration
temperature falls considerably. After some time, the refrigerator temperature display shows
0
o
C. The low refrigerator temperatures which lie outside the adjustable range are caused by
the longfresh compartment receiving first priority in automatic control technology. The
required temperature within the longfresh compartment is reached very slowly as both
shelves are cooled. The condenser therefore operates for a considerable period of time and
the refrigerator is therefore being excessively cooled.
A permanently switched magnetic valve or a jammed magnetic valve is also indicated by icing-
up of the refrigeration compressor suction pipe (with drip tray). In the case of this fault, the
longfresh compartment only is being cooled; however, as the amount of coolant is calculated
for both refrigerator and longfresh compartment, this inevitably leads to symptoms of
overfilling.