Airwell CKD 036, Руководство по обслуживанию

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13-5
TROUBLESHOOTING
SM CKDDCI 2-A.3 GB
No.
SYMPTOM /
PROBLEM
PROBABLE
CAUSE
CORRECTIVE ACTION
12
Compressor is over
heated
Electronic
control Check for any fault code shown on display
board and act accordingly (
13.4
)
EEV problem Check EEV (
13.5.12
)
Refrigerant
leakage
Check refrigeration system (
13.3
)
Indoor coil block Clean filters and/or remove block
Indoor fan
malfunction
Check indoor fan motor and capacitor (
13.5.19
)
Outdoor coil
block
Remove block and/or avoid air by-pass
Outdoor fan
malfunction
Check outdoor fan motors (
13.5.9
)
Compressor
malfunction
Check the compressor (
13.5.10
)
13
Compressor stops
many times during
operation
Check all according to above problem (
13
)
HP Switch
Check if HPS fault code (#28) is accruing
frequently. If so, check the switch operation
(
13.5.14
)
LP Switch
Check if LPS fault code (#29) is accruing
frequently. If so, check the switch operation
(
13.5.15
)
14
Unit is cooling while
in heat mode
RV problem Check RV operation (
13.5.11
)
IDU-ODU
communication Check the communication between outdoor and
indoor units (
13.5.17
)
15
Compressor is
generating abnormal
noise
Phase order to
compressor is
wrong
Check compressor phase order
Compressor
internal parts
wearing
Replace compressor (
14.1.10
)
Vibration
Check all piping connections
Check compressor rubbers are fixed well
Check all screws on unit metal chassis are
tightened
Check that no piping is in contact with each
other or with other parts.
16
Freezing of outdoor
unit coil in heat mode
and outdoor unit base
is blocked with ice
Connect base heater
17
The unit stop
suddenly during
operation
EMC
interference to
the A/C unit
Check for EMC problems (
13.5.20.1
)
18
Indoor unit Indicator
leds may flicker