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ESIE16-03B
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Part 2. Troubleshooting
2.2. Error based troubleshooting
22/08/16
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Version 1.1
Page 31
SA R32 Sky-Air RZAG-L
2.2.2.6. “E9-00” – Electronic expansion valve abnormality
2.2.2.7. “F3-00” – Discharge pipe temperature abnormality
Trigger
Effect
Reset
1. No continuity of expansion valve.
2. Minimum expansion valve opening
and suction superheat < A K and
discharge superheat < B K (refer to
"Product specific information" on
page 121
for values of A and B).
Unit will stop operating.
Manual reset via user interface.
Power reset via outdoor unit.
Possible cause
Check
Corrective action
Wet operation.
Check for wet operation. (Wet operation
can be detected by checking the suction
superheat. If the suction superheat is 0°C
then liquid refrigerant is returned to the
compressor.)
In case wet operation was detected, con-
firm the cause:
• Refrigerant
overcharge.
• Faulty expansion valve.
Faulty outdoor unit main PCB.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check if the outdoor main PCB receives
power.
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals
(see
"Replacing main PCB" on page 89
).
Faulty thermistor.
Check thermistor (see
"Refrigerant ther-
mistors" on page 57
).
Replace thermistor when required.
Faulty or disturbance of the power supply
(imbalance >10%). Power drop. Short cir-
cuit.
Check if the power supply is conform with
regulations. No fluctuations in frequency.
Adjust power supply when required.
Power reset via outdoor unit.
Faulty expansion valve.
Check the expansion valve (see
"Elec-
tronic expansion valve" on page 50
).
Replace the expansion valve body or
motor (see
"Replacing expansion valve
body" on page 81
) when required.
Faulty capacity adapter on outdoor PCB.
Check if the correct adapter is installed.
Check if the correct spare part is installed.
Adjust capacity adapter when required.
External factory (e.g. electrical noise)
(cause when error is reset after power
reset, and error happens again after a
while).
Check for source which could cause elec-
trical interference.
Avoid electrical interference.
Trigger
Effect
Reset
Discharge temperature is too high:
• If the discharge temperature detected
is above A°C, 10 times within 200 min.
• If within 200 min the discharge
temperature detected is 10 times
above B°C for 15 min.
Refer to
"Product specific information" on
page 121
for values of A and B.
Unit will not stop operating.
Automatic reset when temperature drops
below C°C.
Refer to
"Product specific information" on
page 121
for values of C.
Unit will stop operating.
Manual reset via remote controller.
Possible cause
Check
Corrective action
Refrigerant shortage.
Check for refrigerant shortage. Refer to
the nameplate for the correct charge.
Charge the correct refrigerant amount
when required.
Humidity in refrigerant (ice formation in
expansion valve).
Check for humidity in the refrigerant.
In case of suspicion of humidity, recover,
vacuum and recharge with virgin refriger-
ant.