4. Troubleshooting
4-20
Error type
Error
mode
Checking Method
Corrective actions
Power Relay error
None
3. Check the driving signals for the power relay
: Measure the voltage between pin 6 (amber) and pin
1 (black) of the CN7 connector on the main PBA.
When the door is open or before the cycle starts.
➢
Normal: 10.5 to 13 V
After the cycle has started by closing the door and
➢
pressing the Power key.
Normal: 1 V
New PBA
3-1.Check the driving signals for the power relay
: Measure the voltage between pin 6 (amber) and pin
1 (black) of the CN302 connector on the main PBA.
When the door is open or before the cycle starts.
➢
Normal: 9.5 to 13 V
After the cycle has started by closing the door and
➢
pressing the Power key.
Normal: 1 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 (black wire
+ black wire) of the Heater Relay and the terminal
(yellow wire+ amber wire) of the Power Relay
Caution
Check the color of the wires of the Power Relay and
the Heater Relay.
Nomral: 120V
➢
- Faulty: Replace the power relay.
Heater Relay Terminal
(black wire + black wire)
Power Relay Terminal
(yellow wire + amber wire)
Summary of Contents for DMR57 Series
Page 14: ...2 6 2 Features and Specifications Memo ...
Page 38: ...3 24 3 Disassembly and Reassembly Memo ...
Page 59: ...4 Troubleshooting 4 21 Memo ...
Page 73: ...5 14 5 Exploded Views and Parts List 5 7 MAIN DMR57 0 1 D049 Z019 P143 ...
Page 85: ...5 26 5 Exploded Views and Parts List ...
Page 95: ...6 10 6 PCB Diagram Memo ...
Page 103: ...8 5 8 Schematic Diagram Memo ...
Page 104: ...9 1 9 Reference 9 Reference 9 1 Model Number Naming Rules 8 2008 A ALL ...