When Outdoor Units Cannot Be Turned On - Samsung JH035EAV Series Service Manual

Operating Instructions and Installation

4-3-7When outdoor units cannot be turned on

1. Cause of the breakdown
1) Is power voltage 220V?
2) Is AC power properly connected?
3) Are the LEDs of Main PCB and inverter PCB of the outdoor unit on?
4) Is the power supply of the outdoor unit 220V?
2. Inspection order
Switch off the main power (breaker or power
outlet) then turn on again after 30 seconds.
Is the voltage of N-L of the
outdoor unit's PCB
AC187V~AC253V?
Is the voltage of the both side of
BD01, "~" and "~" of the outdoor unit's
Main PCB AC187V~AC253V?
Is the resistance value of
R001 180Ω~220Ω?
Is the voltage of C101 chemical
condenser of the outdoor units' Main PCB
DC265V~DC357V?
Is reactor 1 and 2
(reactor connection wire) properly connected
to the reactor?
Replace outdoor unit PCB for
Outdoor MICOM defect.
4-18
Yes
Yes
Yes
Yes
Yes
Check and replace the wire that connects the
No
outdoor terminal block to outdoor unit's PCB
(contact point, short-circuit)
No
R001 Resistance replacement
No
Bridge 10de replacement (DB300)
No
Connect the connection wire of the reactor
No
Yes
Power ok?
Yes
Finish
Samsung Electronics