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Sanyo SAP-KRV123EH Manual

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39
Self-diagnostics Lamps
Indication on indoor unit
....
OFF
Timer Operation
Code Diagnostics item Diagnostics contents
S01
Room temperature sensor failure
1 Sensor open circuit or short circuit
2 Contact failure at connector or open circuit at terminal crimping location (short-circuit
detection only for the humidity sensor)
3 Indoor/outdoor circuit board failure
1 Sensor open circuit or short circuit
2 Contact failure at connector or open circuit at terminal crimping location
3 Outdoor circuit board failure
1 External ROM data failure 2 Outdoor circuit board failure
1 Outdoor circuit board failure 2 Outdoor power supply voltage failure
1 4-way valve failure (heat pump model only)
2 Outdoor circuit board failure
1 Service valve not opened. 2 Shortage of refrigerant
1 Open phase 2 Outdoor circuit board failure
1 Mis-wiring 2 AC power failure 3 Blown fuse 4 Power relay failure
5 Indoor or outdoor circuit board failure
1 Electric expansion valve failure 2 Capillaries choked 3 Shortage of refrigerant
4 Continuous overload operation 5 Outdoor fan does not rotate 6 Outdoor circuit board failure
1 Mis-wiring 2 Blown fuse 3 Power relay failure 4 Open phase
5 Outdoor circuit board failure 6 Compressor failure
1 Instantaneous power outage 2 HIC or power transistor failure
3 Outdoor circuit board failure
1 Fan motor failure 2 Contact failure at connector 3 Outdoor circuit board failure
1 Indoor fan system failure 2 Shortage of refrigerant 3 Low-temperature operation
1 Fan motor failure 2 Contact failure at connector 3 Indoor circuit board failure
1 HIC or power Tr failure 2 Outdoor fan does not turn. 3 Instantaneous power outage
4 Service valve not opened. 5 Outdoor fan blocked. 6 Continuous overload operation
7 Compressor failure 8 Outdoor circuit board failure
Indoor heat exchanger sensor failure
Humidity sensor failure
Compressor temperature sensor failure
Outdoor heat exchanger sensor failure
Outdoor air temperature sensor failure
Indoor/outdoor communications failure
(serial communications)
Outdoor unit external ROM (OTP data)
failure
Peak current cut-off
• HIC circuit failure
• Power Tr (transistor) circuit failure
• PAM circuit failure
• Active circuit failure
• Outdoor system communications failure
• Outdoor high-pressure SW
• OLR operation
• Outdoor power supply open phase
• Outdoor coil freezing
Compressor discharge overheat
prevention activated.
Indoor fan operating failure
No-refrigerant protection
DC compressor drive circuit failure
Outdoor fan operating failure
Freeze-prevention operation activated.
• 4-way valve switching failure
• Indoor zero-cross failure
Outdoor electrical current detection
failure
Outdoor circuit board failure
S02
S03
S04
S05
S06
S07
E01
E02
E03
E04
E05
E06
E07
E08
E09
E10
E11
E12
E13
....
Blinking
....
ON (Illuminated)
Quiet
(3) (2) (1)
<NOTE> Since the indications cover various units, corresponding parts listed below may not be
present in some models.
OPERATION
OPERATION
TIMER
QUIET
(1) OPERATION lamp
(2) TIMER lamp
(3) QUIET lamp
Self-diagnostics lamps
… 39 …


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