Samsung AC052MN4DKH - Page 72

Troubleshooting
Samsung Electronics 4-37
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1. Test items
1) Check the power connection. / Check the restart after power reset.
2) Install outdoor unit and check environment.
ĺ Check for wire disconnection related to outdoor unit Inverter PCB and check the installation environment.
3) Check the indoor unit installation environment.
4) Check the opening o
f service valve.
2. Check procedure
Yes
Outdoor unit installation and environment
check. ĺ Check for normal operation at
restart. ĺ End the service.
1. Check for wire disconnection related to
outdoor
unit Inverter PCB.
2. Remove obstacle on the inlet of outdoor
unit and secure the space.
3. Remove obstacle on the outlet of outdoor
unit an
d secure the space.
Check installation environment of indoor
unit. ĺ check for normal operation at restart.
ĺ End the service.
1. Remove obstacle on the inlet and secure
the
space.
2. Remove obstacle on the outlet and secure
the space.
No
Is the outdoor unit installed properly?
After replacing the Inverter PCB of the outdoor unit,
check for normal startup. ĺ End the service.
Yes
No
Is the indoor unit installed properly?
Yes
Replace the compressor.
No
Yes
Power on 30 seconds after power off.
Open the valve.
No
Is service valve fully opened?
Is compressor running properly?