E9-00" - Electronic Expansion Valve Abnormality; F3-00" - Discharge Pipe Temperature Abnormality - Daikin SA R32 Sky-Air RZAG-L Service Manual

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