Troubleshooting
Samsung Electronics 4-87
4-4-40 CH wire breaking error
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
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation
Defrost TimerFan Filter/MPI
Operation
Defrost Timer Filter
Operation
TimerTurbo
××◑◑◑×◑◑◑
●
◑◑
※ ● :
ON
◑ :
Flash
×:
OFF
( Air Cooled )
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 temp
erature 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 : Mark 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?
(500~700Ω/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
To Next Page
Loading...
