Operating Instructions and Installation
Samsung Electronics
4-17
Troubleshooting
4-3-6MPI(Micro PlasmaIon) error
Measure the amount of Ion with tester.
No
Yes
Is MPI Connector
disconnected from the PCB?
Resume operation using ion counter
after connecting to the
connector PCB
Indoor unit display
(MPI) X(Fan) X(Reservation) X(Defrost) X(Operation)
Criteria
MPI non-operation
Cause of problem
Check for MPI connector disconnect
On Flickering X Off
T
HE
NUMBER
OF
MEASURED
I
ON
IS
MORE
THAN
100,000.
Change the MPI Kit
(it’s out of the work)
Normal operation
Yes
MPI Kit
Tester: ITC201A