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ESIE16-03B
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Part 2. Troubleshooting
2.2. Error based troubleshooting
Page 40
22/08/16
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Version 1.1
SA R32 Sky-Air RZAG-L
2.2.3. System
2.2.3.1. “U0-00” – Refrigerant shortage
2.2.3.2. “U1-00” – Reverse phase or open phase
Trigger
Effect
Reset
Refrigerant shortage detected.
Unit will stop operating.
Automatic reset (see
"Error codes" on
page 121
).
Power reset via outdoor unit.
Possible cause
Check
Corrective action
Faulty air thermistor.
Check air thermistor (see
"Refrigerant
thermistors" on page 57
).
Replace air thermistor when required.
Faulty discharge thermistor.
Check discharge thermistor (see
"Refrig-
erant thermistors" on page 57
).
Replace discharge thermistor when
required.
Faulty outdoor heat exchanger thermistor.
Check outdoor heat exchanger thermistor
(see
"Refrigerant thermistors" on
page 57
).
Replace outdoor heat exchanger thermis-
tor when required.
Stop valve is closed.
Check stop valve.
Open stop valve when required.
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.
Non condensables in refrigerant.
Check for non condensables in refriger-
ant.
In case of suspicion of non condensables,
recover, vacuum and recharge with virgin
refrigerant.
Faulty compressor.
Check compressor (see
"Compressor" on
page 49
).
Check connections and wiring of the com-
pressor.
Check expansion valve (liquid back issue)
(see
"Electronic expansion valve" on
page 50
).
Check the refrigerant charge. Refer to the
nameplate for the correct charge.
Replace compressor when required (see
"Replacing compressor" on page 76
).
Investigate reason of breakdown.
Replace expansion valve when required
(see
"Replacing expansion valve body" on
page 81
).
Fix possible leak.
Faulty expansion valve.
Check the expansion valve (see
"Elec-
tronic expansion valve" on page 50
).
Replace the expansion valve body (see
"Replacing expansion valve body" on
page 81
) or motor (see
"Replacing expan-
sion valve motor" on page 82
) when
required.
Trigger
Effect
Reset
Outdoor main PCB detects incorrect
power supply.
Unit will stop operating.
Manual reset via user interface.
Automatic reset.
Possible cause
Check
Corrective action
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
).
Содержание RZAG100L7V1B
Страница 14: ...ESIE16 03B Part 1 Introduction 1 4 How to use Page 14 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...
Страница 60: ...ESIE16 03B Part 2 Troubleshooting 2 5 Other capacity range Page 60 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...
Страница 98: ...ESIE16 03B Part 5 Appendix Page 98 22 08 16 Version 1 1 SA R32 Sky Air RZAG L ...