Electrolux 627 series Handbuch - Seite 6
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6
Troubleshooting Tests
Washer Troubleshooting Tests, continued
Test 8
1. Find out if the unit was overloaded. If not, remove the belt from
the motor and spin the motor pulley. Does the motor spin free?
2. Spin the tub pulley. Does the tub spin free?
3. Disconnect the plug from the motor and measure the resistance
of the windings (pin 1 to pin 2, pin 1 to pin 3, pin 2 to pin 3).
All readings should be between 3 and 6 Ohms.
Test 9
1. Remove the belt from the motor and spin the motor pulley.
Does the motor spin free?
2. Spin the tub pulley. Does the tub spin free?
3. Disconnect the plug from the drive motor and measure the
resistance between pins 4 & 5 in the motor.
4. Disconnect the plug from the motor and measure the resistance
of the windings (pin 1 to pin 2, pin 1 to pin 3, pin 2 to pin 3). All
readings must be between 3 and 6 Ohms.
Test 10
Communication problem. Check the wiring between the main
control board and the motor control board.
Test 11
Communication problem. Check the wiring between the main
control board and the user interface board.
Test 12
Have the power company or professional check the frequency and
voltage of the incoming power under load.
Test 13
Check the resistance of the water NTC. Is it around 4.8K ohms?
Test 14
1. Check the resistance of the heating element. It should be ap-
proximately 14 ohms.
2. Check the resistance between ground and both heater termi-
nals. It should be open when the heater terminals are discon-
nected.
Test 15
Check wiring between the main control board and motor control
board.
Test 16
1. Are the hot and cold water hoses switched?
2. Is the HOT water about the same temperature as the cold?
Test 17
1. Check wiring between main board and pump.
2. Check wiring between main control and recirculation board.
3. Check pump for open coil (resistance check).
Test 18
1. Check power in for voltage under load.
2. Check power wiring to main board.
3. Check wiring to motor board for short to power or ground.
Test 19
Check wiring to main board. Unplug the unit for 1 minute and retry.
Test 20
Unplug and re-seat connector between UI boards.
Test 21
Check wiring to recirculation pump
Test 22
Check wiring to concentrated wash pump
No, replace the motor.
Yes, go to step (2).
No, check the tub bearings.
Yes, go to step (3)
If the readings are correct, check wiring from motor to motor control board,
If good, replace the motor control board. If the readings are incorrect, replace
the motor.
No, replace the motor.
Yes, go to step (2).
No, check the tub bearings.
Yes, go to step (3).
If the meter reads other than between 105 to 130 Ohms, replace the motor. If the
reading is between 105 to 130 Ohms, go to step (4).
If the readings are correct, replace the motor control board.
If the readings are incorrect, replace the motor.
If wiring is bad, correct wiring problem.
If wiring is good, replace the main control board. If the problem is not corrected,
replace the motor control board.
If wiring is bad, correct wiring problem.
If wiring is good, replace the user interface board. If the problem is not corrected,
replace the main control board.
If correct, for error code E5C, replace the motor control board.
If correct, for error codes H1/B1, H2/B2, H3/B3, HE/BE, or H5/B5 replace the
main control board
No, replace the NTC sensor
Yes, check the wiring.
If the reading is incorrect, replace the heating element.
If the reading is correct, move to the next step.
If the readings are incorrect, replace the heating element. If the problem is not
corrected, check the wiring, If wiring is OK, replace the main control board.
If wiring is good, replace the motor control board.
Yes, switch the hoses to correct position
No, go to step 2
Yes, fix the HOT water in the house supply.
If OK, then go to step (2).
If OK, then go to step (3).
If OK, then replace main control.
Correct supply or branch circuit issues.
No problem go to step 2.
Yes, fix wiring or plug to main board.
No, go to step 3.
Yes, fix problem.
No, replace the main board.
If problem is not corrected replace main control.
If problem persists, replace UI satellite board.
If wiring is bad, correct wiring problem.
If wiring is good, replace recirculation pump. If the problem is not corrected,
replace the main control board.
If wiring is bad, correct wiring problem.
If wiring is good, replace concentrated wash pump. If the problem is not
corrected, replace the main control board.