Specifications
892
FDC-HKX
6
Error display :
e33
[Or overcurrent error (CM2), motor lock (CM1)]
7
Error display :
e34
[Open phase at L
3
phase of 52C secondary side (CM2)]
8
Error display :
e36
[Discharge temperature error]
Indoor unit
Red LED
Green LED
Note (1) Single flashing of outdoor unit LED indicates CM1 and double flashing indicates CM2.
Stays OFF
Keeps flashing
Red LED
Green LED
1 time flash
(1)
Keeps flashing
Outdoor unit
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
Green LED
2 time flash
(1)
Keeps flashing
Outdoor unit
Note (1) Single flashing of outdoor unit LED indicates Th
0
-1 and double flashing indicates Th
0
-2.
Indoor unit
Red LED
Green LED
Stays OFF
Keeps flashing
Red LED
Green LED
1 time flash
(1)
Keeps flashing
Outdoor unit
Note (1) Measure the current value for confimation.
Confirm that there is no mistake in the setting of J
2~ J4 on
the outdoor unit PCB.
NO
Is AC 380V or 415V de-
tected between L
1
and L
3
phases, and between L
2
and L
3
phases at second-
ary side of 52C?
YES
YES
Is there overcurrent
on compressor?
NO
Open L
1
or L
2
phase
Defective outdoor unit
PCB Replace.
(Defective CT input circuit)
Inspect the unit side.
(1)
• Is power supply voltage adequate (is
not too low)?
• Are power supply wires adequate (are
not too thin)?
• Is model setting adequate (setting of J
2
~ J
4
)?
• Is there overload?
• Is compressor locked(CM
1
)?
• Defective 52C
• Broken wire on L
1
or L
2
phase between 52C ~ CM or
TB1 ~ 52C
• During cooling: Is FM
0
running?
• During heating: Is FM
1
running?
Is service valve (gas side)
opened fully?
Is filter clogged?
• Is there overcharge?
• Are adequate spaces secured for indoor or
outdoor units?
• Is there short circuit on indoor or outdoor
unit?
• Defective compressor Replace.
52C secondary side L3
phase open?
Repair
YES
NO
Defective outdoor unit PCB
Replacement
(Defective CT circuit)
(1)
(2)
Notes (1) When voltage is detected at 52C primary side but not at the
secondary side, check also 52C (broken coil, poor contact).
(2) When voltage is detected at 52C primary side L
3 phase and
there is no error at 52C, the outdoor unit PCB (defective
52X
01
circuit or 52X
01
) or indoor unit PCB (defective
thermostat circuit) is defective.
Is the
discharge gas ther-
mistror characteristics
normal?
YES
NO
NO
Discharge pipe thermis-
tor replacement
Is the unit
normalized
Defective outdoor unit
PCB Replacement
(Defective discharge gas
thermistor input circuit)
Discharge gas
temperature error?
(At cooling/heating
operation)
Check the unit side.
Check the unit side.
• Insufficient refrigerant
Charge the refrigerant (measure)
• Is it the oveload operation?
Operable
Error stop
90ºC 130ºC
Discharge pipe temp.
• During cooling: Is FM0 operating?
• During heating: Is FM1 operating?
Are service valves (both liquid,
gas) fully opened during both
cooling and heating.
• Is the installation space of indoor/
outdoor unit adequate?
• Is there any short circuit air flow
for indoor/outdoor units?