Electrolux R600a - Defrosting Cycle Failure; Lamp Replacement and Checks

R600a NOFROST REFRIGERATORS
22/22
Failed defrosting:
If no defrosting cycle occurs, the possible causes could be:
Sequence
n°
POSSIBLE
CAUSES
HOW TO VERIFY CORRECTIVE ACTION
1 One or both
defrosting heaters
are interrupted
Disconnect the heaters connectors
and check with the tester the
correct heater value to the
connector clamps
If the value of stylus heater is not
about 490 Ω and the armored one
is not about 480 Ω then replace the
interrupted heater
2 One or both
thermal overload
cut-out switches
are open
Freeze the battery, then unplug the
appliance, disconnect the thermal
switches connector and check with
the tester the electrical continuity of
the thermal switches to the
connector clamps
If the heater value is ∞ Ω
(infinite=open circuit) replace the
thermal switches. If the heater
value is 0 Ω then check sequence
no. 3
3 Timer blocked or
faulty
Unplug the appliance, place the
thermostat knob on ON, then
access timer box and measure with
the tester the electrical continuity:
a) between the clamp 1 of timer
and the line clamp of the
feeding plug;
b) between the clamp 3 of timer
and the clamp of the feeding
plug neutral wire.
If the heater value [ a) and b) ] are
0 Ω, then replace timer
Burn out lamp:
After replacing the burn out lamp, verify the correct operating of the light button P with its manual actioning then
try again, actioning the light button from the closure of the refrigerating door and verify the switching off of the
lamp moving slightly the magnetic seal of the door.
Warning: the Q lampholder seal is a component that concerns the appliance safety, therefore it is
obligatory to insert it again into the lampholder after an eventual replacement of the
lamp!