Sanyo SAP-KMV91G-S Technical & Service Manual page 43

(continued)
Display Lamp
Timer
Operation Service*
*This lamp lights only when conducting service inspections.
NOTE
Operation lamp flashes upon errors being detected by sensor, while it flashes to indicate protective actions after error
mode occurs more than twice during operation.
Microcomputer ceases to operate and operation lamp goes out if the fuse on the indoor unit PCB blows.
11-2-3. Self-Diagnosis Function Fails to Work
...Illuminated
Details of Diagnosis
Abnormality on DC compressor
rotation
Defective external ROM for the
outdoor unit
Current peak cut (15A, 20A)
Defective current control
Compressor discharge gas
overheating protection
Indoor fan motor rotation abnormality
Abnormality on outdoor DC fan motor
rotation
Check indoor unit.
Is the fuse blown?
OK
Replace controller.
...Flashing
Details of Abnormality
Defective DC compressor position locating circuit
Forgot to attach OTP data
Incorrect insertion
Defective OTP data
Defective contact of IC socket
Instantaneous power failure/voltage reduction
Defective HIC
Worn compressor
Compressor operation stop, Abnormality on voltage
application
Abnormality on AC input voltage
Gas shortage during heating/cooling operation. (More than
50% gas shortage)
Blocked electronic expansion valve or capillary tube
Defective compressor temp. sensor
Outdoor fan motor fails to rotate during cooling operation
Defective fan motor position locating sensor, disconnection
of fan motor winding
Disconnected connector
Defective fan motor drive circuit
Disconnected outdoor DC fan motor
Locked
Defective PCB
No lamp comes on and indoor fan fails to rotate.
Check that main power is in receptacle.
Check the power voltage.
Yes
Replace PCB or fuse.
39
...Off