4. Troubleshooting
4-6
Error type
Error mode
Checking Method
Corrective actions
Heater error
HE
1. Check the connections of the Heater connectors.
- Reconnect the Heater connectors.
2. Check the resistance between both ends of the Heater.
: Check the resistance between both ends of the Heater directly, or check
the resistance between the red wire of the Heater Relay and the amber
and yellow wires of the Power Relay, respectively.
Normal: Approx. 13Ω
➢
Check after disconnect circuit breaker or power cable.
- Faulty: Replace the Heater.
3. Check the connections of the Heater Relay.
: Check the voltage between the red wire of the Heater Relay on the base
and the yellow and amber wires of the Power Relay.
Normal: 120V (while operating)
➢
- Reconnect the Heater Relay connectors.
Heater Relay
red wire
connector
Power Relay
amber
wire connector
4. Check the driving signals for the Heater Relay.
- Measure the voltage between pin 6 (amber) of the Main PBA CN7
connector and pin 2 (red) of the CN7 connector.
When the Heater is off: 10.5 to 13V
➢
When the Heater is operating: < 0.5V
➢
New PBA
4-1.Check the driving signals for the Heater Relay.
- Measure the voltage between pin 6 (amber) of the Main PBA CN302
connector and pin 2 (red) of the CN302 connector.
When the Heater is off: 9.5 to 13V
➢
When the Heater is operating: < 0.5V
➢
- Faulty: Replace the Main PBA assy.
- Normal: Replace the Heater Relay.
New PBA
Содержание DMR57 Series
Страница 14: ...2 6 2 Features and Specifications Memo ...
Страница 38: ...3 24 3 Disassembly and Reassembly Memo ...
Страница 59: ...4 Troubleshooting 4 21 Memo ...
Страница 61: ...5 2 5 Exploded Views and Parts List 5 1 MAIN DMR77 DMR78 F219 Z019 P143 DMR77 Z019 P143 DMR78 D049 0 1 1 0 ...
Страница 73: ...5 14 5 Exploded Views and Parts List 5 7 MAIN DMR57 0 1 D049 Z019 P143 ...
Страница 85: ...5 26 5 Exploded Views and Parts List ...
Страница 95: ...6 10 6 PCB Diagram Memo ...
Страница 100: ...8 2 8 Schematic D iagram 8 3 TOUCH KEY 7KEY DMR77 DMR78 This Document can not be used without Samsung s authorization ...
Страница 101: ...8 3 8 Schematic Diagram 8 4 TOUCH KEY 3KEY DMR77 DMR78 This Document can not be used without Samsung s authorization ...
Страница 102: ...8 4 8 Schematic D iagram 8 5 TOUCH KEY 7KEY DMR57 This Document can not be used without Samsung s authorization ...
Страница 103: ...8 5 8 Schematic Diagram Memo ...
Страница 104: ...9 1 9 Reference 9 Reference 9 1 Model Number Naming Rules 8 2008 A ALL ...