GE FRU-57QL Series Service Manual page 17

5. Troubleshooting when error happens
( If the relative parts is normal, Error code display will be reset. )
1) F1 error
- Cause : Freezer sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN15 of the Main PCB.
If sensor is disconnected or short, change that in the freezer compartment.
2) R1 error
- Cause : Refrigerator sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN14 of the Main PCB.
If sensor is disconnected or short, change that in the refrigerator compartment.
3) rt error
- Cause : Room temperature sensor disconnection or short.
- Check point : Measure the voltage of sensor part on the Main PCB.
If voltage is 0.5~4.5V, normal. If voltage is 0V (short) or 5V (disconnect), change new one.
4) d1 error
- Cause : Defrost sensor disconnection or short.
- Check point : Measure the resistance between both terminals after separating CN15 of the Main PCB.
If sensor is disconnected or short, change that on the evaporator.
5) Door switch error ( dr, dF, dH on display )
- Cause : When it senses the door open for more than 1 hour.
- Check point : Check the each door switch and exchange.
6) EI error
- Cause : Ice sensor is abnormal.
- Check point : Measure the resistance between both terminals after separating CN11 of the Main PCB.
If sensor is disconnected or short, change that in the automatic ice maker.
7) EF error
- Cause : When Flow-sensor abnormal. ( There is no pulse during some time. )
The number of pulse signal is below 10 by 1 second during water supply.
- Check point : Water supply line.
8) Et error
- Cause : Level switch abnormal. ( No pulse is sensed for some time. )
- Control : By time. ( Supply mode is skipped. )
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FUNCTIONS ( Error Display_Dispenser Models )
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