Troubleshooting
4-130
Samsung Electronics
Replace electronic expansion valve
Reset EEV KIT's Address
4-4-88 Electronic expansion valve opening malfunction (2
nd
stage)
Indoor unit display
Cause of problem
×(Operation)
(Reservation)
(Blast)
(Filter) ×(Defrost)
∙ Faulty indoor unit electronic expansion valve action (refrigerant will leak into the stopped indoor unit)
∙ Address setup error in indoor unit (RAC) using EEV KIT
Criteria
∙ Please refer to determining method below
Outdoor unit display
1st stage inspection:
(only displays on outdoor unit)
2nd stage inspection:
x x x (x x x: indoor unit address of where error occurred)
1. Inspection Method
Is the electronic
expansion valve wire connected
to the PCB?
After measuring the
coil terminal resistance, is there a disconnection
or short circuit inside the coil?
Is the electronic
expansion valve coil connected to the
main body properly?
After Resetting the outdoor
unit, does an error occur even after running it again
with the same combination?
Connect to PCB and run again
No
No
Yes
No
No
Yes
No
Yes
Connect the electronic expansion valve coil
properly and run again
Replace electronic expansion valve coil
When EEV KIT was used,
was its Address setting accurate?
Normal operation of electronic
expansion valve
Yes
Yes
Reset EEV KIT's Address
Replace electronic expansion valve
