Check
code
[1C]
Outdoor
LED display
Check and troubleshooting
(Item without special mention indicates part of outdoor unit.)
∗ There is a possibility that it is one of the following errors.
Confirm LED on display P.C. board to judge which error it is.
Compressor system error, Compressor lock, Gas side temp. sensor (TGa to TGe)
error, Gas leakage, PMV error
[Compressor system error, Compressor lock]
Check wiring construction.
Ask repair of power supply.
Check wire connection
and correct it.
Check TE, TS sensor and PMV.
Detect → Replace.
.
Remove blocking matter.
Correct short-circuit.
Check outdoor P.C.B MCC-1571 and WP-041.
Defect → Replace
Compressor lock → Replace.
1
1
Does PMV correctly operate?
Is there refrigerant stagnation?
Is compressor under correct condition?
Is AC mains voltage correct?
(198 to 264V)
Does something block
the ventilation around the heat sink?
Does something air flow from the fan?
Apply radiation grease to objective parts.
Retightening of screws.
Is wire connection correct?
Compressor lead
(Board side, Compressor Side),
Reactor lead, Power supply lead.
Are the power devices on P.C. board
MCC-1571 screwed without looseness?
(Rear sides of (Q201, Q300, Q650, DB01, DB02)
Are radiation grease properly applied these?
1
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
{:ON
(
{*:3 sec ON / 0.5 sec OFF)
z:OFF
**zz
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