Troubleshooting_53
Check type
Check code
Checking method
Corrective actions
Power Relay
check code
None
1. Check the connections for the Power Relay connector
: Start the cycle by pressing the Power key. when measure the operating
voltage between the wires of the Power Relay and pin 1 wires of the
CN101.
Caution
Check the pin of the wires of the Power Relay and the Heater Relay.
► Normal: 110V ~ 120V
- Reconnect the Power Relay.
2. Check the door switch.
: Check the white wire and the switch connected to the white wire.
► W
hen
the door is open: The Door Switch is OFF.
► When the door is closed: The Door Switch is ON.
The Powe
r Relay and the Heater Relay use a 12V line.
If the switch is out of order, the Power Relay and the Heater Relay will not
operate.
- Faulty: Replace the Door Switch.
3. Check the driving signals for the power relay : Measure the voltage
between pin 7 and pin 2 of the CN402 connector on the main PBA.
► W
hen the door is open or before the cycle starts.
Normal: 1 V
► After the cycle has started by closing the door and pressing the Power
key. ". Normal : 10.5 to 13 V
- Faulty: Replace the main PBA Assy.
4. Check the operation of the Power Relay.
: Start the cycle by pressing the Power Key.
Measure the operation voltage between the terminal of the Power Relay
(pin 3) and pin 1 of CN101.
Caution
Check pin the Power Relay and pin 1 of CN101
► Normal: 110V ~ 120V
- Faulty: Replace the main PBA Assy.