Troubleshooting
4-54 Samsung Electronics
■ CCH is detached. (E-445))
Outdoor unit Display E-445
Indoor unit Display
Duct, Cassette (1 / 2Way), Console, Ceiling
Operation Defrost Timer Fan Filter / MPI
× ×
◑ ◑
◑
Cassette (4Way / Mini 4Way)
Operation Defrost Timer Filter
×
◑
◑ ◑
Duct, Cassette (1/2 Way), Console, Ceiling
Operation Timer Turbo 24°C 27°C
× ×
◑ ◑ ◑
※ ●
: ON
◑
: Flash ×: OFF
Judgement Method •Referthenextpage.
Cause of problem
•CCHConnectorPCBisnotconnected/CompressorTopsensorbreakaway/
Own problem of CCH
Is the CCH connector
connected to PCB?
Replace EVI EEV.
Yes
No
Is the compressor top
temperature sensor
fixed in correct position?
Fix the compressor top temperature sensor in
correct position.
No
Yes
Does the E445 error
occur even after
the outdoor unit power
is put back in?
Normal Operation.
Yes
Is CCH resistance
normal? ( 500~700 Ω /
infinite for
disconnection )
Change CCH.
No
No
Yes
Change PCB.