MEMO
Samsung Electronics
4-23
4-5-5 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
�es
�es
�es
Is the Thermo off?
Is the unit
in the defrosting operation?
Is the compressor
in 3 minutes off?
Check the resistance value
of 4-WA� valve coil.
Go to the next page
4-WA� valve main body error
Attach the
sensor correctly.
Over shortage
of the refrigerant
Connect the connecter
correctly.
4-WA� valve coil error
Exchange
the outdoor PCB.
No
�es
�es
�es
OK
�es
No
No
No
NG
No
Is much frost
in the indoor heat
exchanger?
Does the
4-WA� valve operate
normally?
Is the
outdoor air sensor and
outdoor heat exchanger attached
correctly?
Is the
4-WA� valve connector
connected correctly?
Dose the
voltage of AC220V
apply to the connector of 4-WA�
valve coil during the
operation?
Содержание CH070EAV1
Страница 19: ...Samsung Electronics 3 1 3 Disassembly and Reassembly Necessary Tools Item Remark SCREW DRIVER MONKE SPANNER...
Страница 40: ...3 22 Samsung Electronics MEMO...
Страница 75: ...Samsung Electronics 4 35 4 5 16 The others 1 Capacity miss match Check again the indoor unit option code...
Страница 88: ...Product Specifications 5 10 Samsung Electronics 5 4 Assy control out UH090 105 140EAV...
Страница 90: ...Product Specifications 5 12 Samsung Electronics UH070EAV1...
Страница 92: ...5 14 Samsung Electronics MEMO...
Страница 99: ...Samsung Electronics 6 7 6 1 5 OUTDOOR DISPLAY PCB...
Страница 100: ...6 8 Samsung Electronics MEMO...
Страница 132: ...This Document can not be used without Samsung s authorization 7 1 7 Wiring Diagram Samsung Electronics...
Страница 136: ...This Document can not be used without Samsung s authorization INVERTER PCB 8 4 Samsung Electronics...
Страница 137: ...EMI PCB UH090 105 140EAV This Document can not be used without Samsung s authorization Samsung Electronics 8 5...
Страница 139: ...Indoor Unit Outdoor Unit 9 Preference Sheet 9 1 Refrigerating Cycle Diagram Samsung Electronics 9 1...