Troubleshooting
4-50 Samsung Electronics
Outdoor unit display
Indoorunit display
Judgment Method
. Refer to the judgment method below.
Cause of problem
. CCH Connector PCB is not connected / Compressor Top sensor breakaway / Own problem of CCH
1. Judgment Method
① Current compressor Top temperature - Tini < 2℃ ( ※ Tini : Power on or temperature of initial compressor Top after reset )
② Current compressor Top temperature - suction1 temp. sensor < 30℃
③ Outdoor temperature < 30℃
④ UP state
※ If the above condition is satisfied at the same time : Mark the CCH wire breaking error (E445)
Change PCB.
No
Fix the compressor Top temperature
sensor in correct position.
Is the compressor Top temperature
sensor fixed in correct position?
Is CCH resistance normal?
(500~700Ω/infinite for disconnection)
No
Change CCH.
No
Replace EVI EEV.
Is the CCH connector connected to PCB?
Yes
Yes
Yes
No
Normal Operation.
Does the E445 error occur even after
the outdoor unit power is put back in?
Yes
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation
Defrost Timer Fan Filter/MPI
Operation
Defrost Timer Filter
Operation
Timer Turbo
24℃ 27℃
× × ◑ ◑ ◑ × ◑ ◑ ◑ × × ◑ ◑ ◑
※ ● : ON ◑ : Flash × : OFF
(AMSSSFXWASSS)
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