In Case Of Heating At The Cooling Mode Or Cooling At The Heating Mode - Samsung NS100SSXEA Service Manual

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

1. Troubleshooting procedure
Is the unit in the defrosting
Is the compressorin 3 minutes off?
Is much frostin the indoor
Samsung Electronics
NS090SDXEA_E_SM_33623A(1)_1.indd 22
Is the Thermo off?
No
operation?
No
No
Yes
heat exchanger?
No
Yes
Does the 4-WAY valve
operate normally?
Go to the next page
No
Change the setting temperature of remote control
Yes
Check Inner wiring of outdoor unit.
Yes
After 3 minutes, coolingand heating start automatically
Is the outdoor air sensor and
outdoor heat exchanger
attachedcorrectly?
Yes
Is the 4-WAY valve
connectorconnected
correctly?
Yes
Check the resistance value of 4-WAY
valve coil
Yes
Dose thevoltage of
AC220V apply to the
connector of
4-WAY valve coil during
the operation?
Yes
4-WAY valve main body error
Troubleshooting
No
Attach the sensor correctly
Over shortage of the
refrigerant
No
Connect the connecter
correctly
No
4-WAY valve coil error
No
Exchangethe outdoor PCB
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2011-04-08 10:55:30