Whirlpool 290L Service Manual - Page 13

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Safe mode routine

During Constant fault condition, the Electronic Control will assume a safety routine, as in normal

cycle, trying to keep food conservation, however will work as follows:

• Compressor and Fan Motors will be on for 25 minutes and then will turn off for 20 minutes.

• Interval set between defrosts will be fixed in every 5 hours of the Compressor activity

• Every defrost time is fixed for 20 minutes. No dependency on defrost sensor for Cut Off temp

of 15°C

Note: -

•

There is no Service routine provided in this model.

•

To check whether Heater is working fine or not, service person can use the Power up initialization

function of the model, where Product need to be switched Off & need to be ensured that the temp

at the FC sensor is >0°c, then after making the product ON product goes into the Power up

initialization mode where after product switch ON, heater gets activated for the first 5 seconds &

then it goes to the compressor mode after 3 minutes of heater getting off. Service person can make

the use of this 5 seconds where by putting the Tong tester one can easily identify the healthy/faulty

condition of the heater through the driving current displayed on the tong tester it self at the

Electronic core board box location without opening the FC Plenum.

•

In case of any Aluminum foil wrapping found over the Wiring harness either in FC compartment, RC

Compartment or in the Compressor deck area, the same Al foil should be carefully replaces in same

fashion after servicing

•

In case of any detailed technical information please check with the Dlx technical specification.