Panasonic S-200PE2E5 Technical Data & Service Manual page 177

P13 Alarm Valve Open
1. Error Detection Method
Detection is performed only in the test run. When once detected or the test run finished without any error,
the second detection will not be done.
In case of forgetting to open a valve, P04 (high-pressure switch operational alarm) is occasionally preceded due to the
following conditions.
• The status of small temperature change of the operating indoor unit continues for the first 7 minutes since the
cooling test run has started.
2. Error Diagnosis
1 Service
valve
1-1 Service valve inside the outdoor unit closed
2 Adjustment
to
2-1 Not additional refrigerant charged
refrigerant
change
3 Blockage
3-1 Are the tubes clogged?
in
refrigerant
circuit
Is the outdoor unit's electronic control valve operating correctly?
3-2 (Check for debris clogging the electronic control valve, a problem
with the electronical coil and/or the control PC board.)
3-3 As the second detection is not done, restart and see what happens if there is no error.
4. Mini VRF System Alarm Codes
P14 O Sensor Detect
2
1. Error Detection Method
• It is judged an error whenever the outdoor unit receives the signal "O
• With the indoor unit's EEPROM setting (item code 0B) set to 0001, the EXCT input was shorted.
2. Error Diagnosis
1 System
1-1
configuration
2 Indoor unit's
EEPROM
2-1
setting
3 Indoor EXCT
3-1
wiring
4 Indoor unit's
4-1
control
PC board
4-2
4-3 Indoor unit control PC board error
AMP Air Conditioning
Is an O sensor being used?
2
Is the indoor EEPROM setting, item code 0B, on the indoor unit's
control PC board set to 0001?
Is the indoor EXCT socket (wire) shorted?
Is the alarm triggered if the indoor EXCT socket (wire) is
disconnected, and the power is reset?
Since there is no error, see what happens.
Alarm Occurred" from the indoor unit.
2
replace PC board.
5-23
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Open the service
Yes
valve
No 2-1
Additional
Yes
refrigerant charge
No 3-1
Yes Avoid clogging
No 3-2
Yes 3-3
Replace the
No electronic control
valve
Mini VRF SYSTEM
Trouble Diagnosis
Yes 3-1
No 2-1
After correcting the
Yes
setting, 3-1
No 4-1
Yes Correct wiring
No 4-1
Yes 4-3
No 4-2
5