Samsung AVXTJH028EE - Page 208

Troubleshooting
4-117 Samsung Electronics
1. Inspection Method
1) Check the 3-phase inspection part power of the outdoor unit PCB.
2) The colors of the wires on L1 (R), L2 (S) and L3 (T) on the 3-phase inspection connector are red, white, and black.
(Please be careful not to change the color or the order.)
4-5-58 3-phase Power Reversed Phase and No-phase Inspection
×(Operation) (Reservation) (Blast) (Filter) ×(Defrost)
tQIBTFQPXFS-3-4-5XJSJOHFSSPS
t8IFOUIFQIBTFQPXFSJTOPUQVUJO
t8IFOUIFPSEFSPGUIFQIBTFJTSFWFSTFEPSPOFPSNPSFQIBTFWPMUBHFJTOPUQVUJOXIFOUIFQIBTFDJSDVJU
wave orders are compared (E425 is automatically cancelled when the phase power is restored to normal.)
Indoor Unit Display
Judgment Method
Special Cause
Outdoor Unit Display
Check the voltage for the major parts.
Is the voltage of the CN82
wire between Red~White/White~Black/
Red~Black around AC 380V?
Turn off the power circuit breaker, exchange
two cables out of the three cables of the 3-phase
incoming part, and check again.
Does the E425 error reoccur?
Change the PCB since this is a problem with the
3-phase inspection circuit.
Measuring from the 3-phase power-in
entrance, find problems with wire, circuit
breaker, etc. and take measures.
It operates normally since the problem
of crossed 3-phase lines at the incoming
part is solved.
No
No
Yes
Yes
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