Troubleshooting
4-60 Samsung Electronics
4-3-40 CH wire breaking error
1. Judgment Method (2hours after reset or power on, It will be judged once .)
① Compressor Top temperature at the time of judgment - Tini < 2℃ (※Tini : Power on or temperature of initial compressor Top after reset)
② Compressor Top temperature at the time of judgment - Outdoor temperature < 2℃
③ Outdoor temperature < 30℃
④ UP state
※ If all the conditions are satisfied at the same time : Mar k the CCH wire breaking error (E445)
Replace the 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?
(500~700 Ω /infinite for disconnection)
No
Change CCH.
No
Connect.
Is the CCH connector connected to PCB?
Yes
Yes
Yes
No
Normal Operation.
Does the E445 error occur even after
the outdoor unit K3” RESET?
Yes
Outdoor unit
display
( Air Cooled )
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mount ed (NeoForte)
Operation Defr ost Timer Fan Filter/MPI Operation Defrost Timer F ilter Operation Timer Turbo
××◑◑◑ ×◑◑◑
●
◑◑
※ ●: ON ◑: Flash ×: OFF
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
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