Symptoms And Parts To Inspect - Panasonic S-200PE2E5 Technical Data & Service Manual

5-3. Symptoms and Parts to Inspect

Remote
Alarm
controller
contents
alarm display
P03 Abnormal discharge
temperature error.
•Discharge temp.
detected at or above
the specified value.
P05 Missing phase
detected.
(CT disconnected
or AC power supply
error)
P15 Insufficient gas level
detected.
P19 4-way valve locked
trouble.
•Judged after
5 minutes had
elapsed since the
compressor was
switched on.
P20 High-pressure
protection error
caused by cooling
high-load max (C1,
C2) temperature.
P22 Outdoor unit fan
motor trouble.
•Inverter protection
circuit was
activated, or lock
was detected at
outdoor unit fan
motor.
P26 Inverter protector
circuit was activated.
G-Tr short-circuit
within the HIC
circuit.(Short time /
0.8 seconds or less)
HIC temperature
protection
Judgement conditions
Stops when temp. exceeds
115 .
Alarm output on 4 pre-trips.
The current value transmitted
from the microcomputer on the
outdoor unit control substrate is
low.
When no AC power input for
more than 3 minutes: Pre-trip 5
times.
•Discharge temperature is 100
or higher.
•Electronic expansion valve is at
Step 960.
•The current value from the MDC
is 6.0A (three-phase) / 3.5A
(single-phase) or less.
When the above has continued
for 1 minute.
The indoor unit heat exchanger
temperature drops even
though the compressor is
switched on during the heating
mode.[min(E1,E2)] is 10
or lower.The indoor unit heat
exchanger temperature rises
even though the compressor is
switched on during the cooling
mode.E2 is 50 or higher Pre-
trip 2 times
Halted if the temperature
exceeds 64 .
Error output on 4 consecutive
pre-trips.
Inverter stops after alarm is
detected. Pre-trip 4 times
Inverter stops after alarm
is detected. Alarm is output
when inverter stops (pre-trip)
consecutively 4 times.
5-5
Eliminating
Judgement and correction
condition of alarm
Recovery at restart 1. Check refrigerant cycle (gas
leak).
2.Trouble with electronic
expansion valve.
3.Check discharge
temperature sensor (TD).
Recovery at restart 1.Check R/S/T power supply.
2.Check HIC circuit.
3. Check outdoor unit control
PCB.
Recovery at restart 1.Check refrigerant cycle (gas
leak).
2.Trouble with electronic
expansion valve.
3.Check outdoor unit valve
opening.
Recovery at restart 1. Check 4-way valve.
2. Check 4-way valve wiring.
3. Check outdoor unit control
PCB.
Recovery at restart 1.Overload operation of
refrigerant cycle.
2.Check outdoor unit heat
exchanger temperature
sensor C1 and C2.
Recovery at restart 1.Position detection trouble.
2.Outdoor unit fan motor over-
current Protection circuit is
activated.
•Check outdoor unit control
PCB.
•Refer to outdoor unit fan
judgement methods.
Recovery at restart 1.Stops immediately even
when operations restarted.
•Layer short on the
compressor
2.Check HIC circuit.
•Wiring trouble
Temperature dropped 3.Heat sink and PCB (HIC)
•Contact trouble
5