Sanyo SAP-DMRV93GJ Technical & Service Manual page 32

When the operation selector on the remote control receiver is moved from the ON or TEST position to the OFF (Self-
diagnostics) position, the indicator lamps on the receiver will flash (or remain ON) for 5 seconds and then turn OFF for 2
seconds (buzzer sounds once) to indicate the presence of a sensor failure or the activation of a protective function.
Self-diagnostics is completed when the buzzer sounds 3 beeps.
If there is no trouble, the lamps do not flash (illuminate). Also note that the corresponding parts listed below may not be
present in some models.
Remote control receiver indication
Timer Operation
NOTE : If the operation lamp continues to flash (orange) even when the operation selector on the remote control
receiver has been moved to the OFF position, an indoor unit external ROM failure has occurred. (E14)
After inspection or repair is completed, be sure to move the operation switch on the indoor unit main body to
the DEMO position, turn the power ON, and erase the diagnostics contents.
Details of Self-Diagnostics
Code Diagnostics item
S01
Room temperature sensor failure
S02
Indoor heat exchanger sensor failure
S03 Humidity sensor failure
• Compressor temperature sensor failure
S04
• SH sensor failure
• Outdoor heat exchanger sensor failure
S05
• Outdoor narrow tubing sensor failure
• Outdoor air temperature sensor failure
S06
• Outdoor wide tubing sensor failure
S07 Outdoor electrical current sensor failure Outdoor circuit board failure
Indoor/outdoor communications failure
E01
(serial communications)
• HIC circuit failure
E02
• Power Tr circuit failure
E03
Outdoor unit external ROM failure
E04 Peak current cut-off
• PAM circuit failure
E05
• Active circuit failure
Compressor discharge overheat
E06
prevention
E07 Indoor fan operating failure
• 4-way valve switching failure
E08
• Indoor zero-cross failure
E09
No-refrigerant protection
E10
DC compressor drive circuit failure
Outdoor AC fan operating failure
E11
• Outdoor system communications failure
• Outdoor Hi-pressure SW, OLR operation
E12
• Outdoor power supply open phase,
outdoor coil freezing
E13 Freeze-prevention operation
.... OFF .... Flashing
Diagnostics contents
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 Miswiring 2 AC power failure 3 Blown fuse 4 Power relay failure
5 Indoor or outdoor 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
1 External ROM data failure 2 Outdoor circuit board failure
1 Instantaneous power outage 2 HIC or power Tr failure
3 Outdoor circuit board failure
1 Outdoor circuit board failure 2 Outdoor power supply voltage failure
1 Electric expansion valve failure 2 Capillaries blocked. 3 No gas 4 Continuous
overload operation 5 Outdoor fan does not turn. 6 Outdoor circuit board failure
1 Fan motor failure 2 Contact failure at connector 3 Indoor circuit board failure
1 4-way valve failure 2 Outdoor circuit board failure
1 Service valve not opened. 2 No refrigerant
1 Open phase 2 Outdoor circuit board failure
1 Fan motor failure 2 Contact failure at connector 3 Outdoor circuit board failure
1 Miswiring 2 Blown fuse 3 Power relay failure 4 Open phase
5 Outdoor circuit board failure 6 Compressor failure
1 Indoor fan system failure 2 No refrigerant 3 Low-temperature operation
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.... ON