In Case Of Heating At The Cooling Mode Or Cooling At The Heating Mode - Samsung NS100HHXEH Service Manual

4-6-5 In case of heating at the cooling mode or cooling at the heating mode

1. Troubleshooting procedure
Is the Thermo off?
in the defrosting operation?
Is the compressor
in 3 minutes off?
Is much frost
in the indoor heat
exchanger?
4-WAY valve operate
Go to the next page
Samsung Electronics
No
Is the unit
No
No
Yes
No
Does the
No
normally?
Yes
Change the setting temperature of
Yes
Operate it with a heating mode
as soon as the defrosting is finished.
Yes
and heating start automatically.
Is the
outdoor air sensor and
outdoor heat exchanger attached
correctly?
Yes
Is the
4-WAY valve connector
connected correctly?
Yes
Check the resistance value
of 4-WAY valve coil.
OK
Dose the
voltage of AC220V
apply to the connector of 4-WAY
valve coil during the
operation?
Yes
4-WAY valve main body error
remote control.
After 3 minutes, cooling
No
Attach the
sensor correctly.
Over shortage
of the refrigerant
No
Connect the connecter
correctly.
NG
4-WAY valve coil error
No
Exchange
the outdoor PCB.
4-17