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12-6
Samsung Electronics
12-2-5 In case of heating at the cooling mode or cooling at the heating mode
1. Troubleshooting procedure
Change the setting temperature of
remote control.
Operate it with a heating mode
as soon as the defrosting is finished.
After 3 minutes, cooling
and heating start automatically.
No
No
No
Yes
Yes
Yes
Is the Thermo off?
Is the unit
in the defrosting operation?
Is the compressor
in 3 minutes off?
Check the resistance value
of 4-WAY valve coil.
Go to the next page
4-WAY valve main body error
Attach the
sensor correctly.
Over shortage
of the refrigerant
Connect the connecter
correctly.
4-WAY valve coil error
Exchange
the outdoor PCB.
No
Yes
Yes
Yes
OK
Yes
No
No
No
NG
No
Is much frost
in the indoor heat
exchanger?
Does the
4-WAY valve operate
normally?
Is the
outdoor air sensor and
outdoor heat exchanger attached
correctly?
Is the
4-WAY valve connector
connected correctly?
Dose the
voltage of AC 230V
apply to the connector of 4 WAY
valve coil during the
operation?
Troubleshooting
Содержание UH052EAS
Страница 18: ...Samsung Electronics 4 1 4 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKEY SPANNER ...
Страница 29: ...Samsung Electronics 5 1 5 Exploded Views and Parts List 5 1 Indoor Unit DH070 052 EAS ...
Страница 31: ...Samsung Electronics 5 3 Exploded Views and Parts List 27 26 UH070 052 EAS 5 2 Outdoor Unit ...
Страница 33: ...Samsung Electronics 5 5 5 3 Ass y Control Out ...
Страница 56: ...Samsung Electronics 8 2 Outdoor Unit This Document can not be used without Samsung s authorization EMI PCB 8 2 ...
Страница 57: ...9 1 1 Indoor Unit 9 Circuit Descriptions 9 1 PCB Circuit Descriptions Samsung Electronics ...
Страница 58: ...9 1 ...
Страница 59: ...9 1 2 Outdoor Unit 9 1 PCB Circuit Descriptions 9 2 ...
Страница 60: ...Temperature sensor EEV PCB display Communcation Tap motor 4 way valve Samsung Electronics ...
Страница 61: ...MEMO Samsung Electronics ...
Страница 62: ...Samsung Electronics 9 2 Refrigerating Cycle Diagram 9 3 ...
Страница 63: ...Samsung Electronics The red number connecter is not used 10 PCB Diagram 10 1 Indoor PCB 10 1 ...
Страница 95: ...Samsung Electronics 13 Block Diagram 13 1 Indoor Unit 13 1 ...
Страница 98: ...Samsung Electronics 14 2 Pressure Graph UH052EAS 14 2 UH070EAS ...