Service manual

3-11
AY-ZP35PR
6. DC Over Current Error ( 6-0 error)
* 1
Check the connection of compressor lead wire on PWB.
TU : RED
TV : WHITE
TW : ORANGE
* 2
Refer to "IPM CHECK METHOD".
* 3
Check the connection of compressor terminal marking.
Refer to " DISASSEMBLING PROCEDURE OUTDOOR UNIT".
* 4
Check to make sure thermistors are installed in correct portions.
Refer to "THERMISTOR TEMPERATURE CHARACTERISTICS".
Yes
No
Yes
* 1
No
abnormal
lamronbalamron
* 2
abnormal
normal
normal
* 3
Yes
abnormal
No
normal edomgnilooCedomgnitaeH
4*4*
lamronbalamronba
lamronlamron
lamronbalamronba
lamronlamron
START
Replace PWB.
Modify compressor terminal
marking.
Clean indoor heat exchanger.
Fix IPM PWB with screws securely.
Modify or replace termistor.
Are valves(2-way
and 3-way) close?
Does compresso
r
rotate?
Check IPM
lead wire.
Check
short circuit.
Check compressor
terminal.
Does compresso
r
rotate?
Does compressor rotate
more than 30 seconds?
Is IPM PWB floating
from the heat sink?
Check the AC power
supply voltage when
compressor rotate.
(rated voltage±10%)
Cooling mode?
Check indoor
exchanger termistor and
discharge thermistor.
Check outdoor
exchanger termistor and
discharge thermistor.
Check indoor
heat exchanger.
Check outdoor
heat exchanger.
6-0 error memory is
recorded.
Check the refrigerant amount.
Check the discharge pressure.
Check the installation condition.
ReplacePWB
ReplaceCompressor
Fullyopenstop valves
Modify the connection of
compressor lead wire on PWB.
Connect stable power supply.
Clean indoor heat exchanger.
Modify or replace termistor.
[7] OUTDOOR UNIT CHECK METHOD
After repairing the outdoor unit, conduct the following inspection procedures to make sure that it has been repaired completely. Then, operate the
compressor for a final operation check.
1. Checking procedures
No ydemeRnoitidnoc/eulav lamroNdohtem kcehCmetI
1 Preparation Disconnect compressor cords (white,
orange, red: 3 wires) from compres-
sor terminals, and connect simulated
load (lamp used as load).
Operate air/air heat pump in cooling
heating test operation mode.
or