ESIE16-03B
|
Part 2. Troubleshooting
2.2. Error based troubleshooting
22/08/16
|
Version 1.1
Page 37
SA R32 Sky-Air RZAG-L
2.2.2.18. “L8-00” – Electronic thermal overload
2.2.2.19. “L9-00” – Stall prevention time lag
Trigger
Effect
Reset
When compressor overload (except dur-
ing start-up) is detected.
Unit will stop operating.
Manual reset via user interface.
Possible cause
Check
Corrective action
Refrigerant circuit is clogged.
Check for possible blockage.
Replace blocked part when required.
Refrigerant overcharge.
Check for refrigerant overcharge. Refer to
the nameplate for the correct charge.
Charge the correct refrigerant amount
when required.
Refrigerant is contaminated.
Replace refrigerant.
Faulty outdoor inverter PCB.
Check outdoor inverter PCB.
Check if the alive led is blinking in regular
intervals.
Check if the correct spare part is installed.
Adjust the power to the outdoor inverter
PCB.
Replace outdoor inverter PCB (see
"Replacing main PCB" on page 89
).
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 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.
Trigger
Effect
Reset
Outdoor inverter PCB detects compressor
overload at start up.
Unit will stop operating.
Manual reset via user interface.
Possible cause
Check
Corrective action
Refrigerant circuit is clogged.
Check for possible blockage.
Replace blocked part when required.
Refrigerant condition is not OK (HP-LP >
0,2 MPa at start-up).
Check refrigerant condition.
Faulty outdoor inverter PCB.
Check outdoor inverter PCB.
Check if the alive led is blinking in regular
intervals.
Check if the correct spare part is installed.
Adjust the power to the outdoor inverter
PCB.
Replace outdoor inverter PCB (see
"Replacing main PCB" on page 89
).
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 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.
