Daewoo DWD-1211RT, Service Manual

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2-1. LOAD SENSING
1) Deciding the water level
①
Cotton, Whites, ECO course will be followed by this process.
②
Check the water level with dry laundry at the starting wash.
③
Check the water level by using motor output data during 20 sec, 65 rpm.
2) Balancer Spin
①
Check after finishing washing step with wet laundry.
②
Checking by using motor output data during 20 sec, 65 rpm.
③
The decided data is different depending on loading condition.
2-2. BALANCE SPIN
1) Motor running during balance spin.
①
Spreading the laundry : Rotating the same 45 rpm with left and right direction alternatively.
②
Attaching stop : Attaching the laundry to drum inside with constant speed.
③
Unbalance checking point : First step, check the U.B at 95 rpm, 160 rpm.
Second step, check the U.B at 95 rpm, 350 rpm.
Third step, at 300 rpm. if the unbalance data is over the criterion,
This process will be repeated.
④
Drain step : Drain at water around 160 rpm.
⑤
After drain, check the unbalance data again. This is so-called balance spin step.
2) Property of balance spin.
①
Conducting 10 times maximum.
②
If the washer can not pass balance spin step during 10 times, then water will be supplied.
③
If the washer can not pass 20 times of balance spin, UE error mode will be displayed on PCB.
2. Main function of PCB program