Sanyo SPW-C483GYH8 Service Manual page 150

Contents
1. Troubleshooting.............................................................................. III - 2
1-1. Check before and after troubleshooting ........................................................................................................ III - 3
1-2. General troubleshooting flow chart: diagnosis and remedy ........................................................................... III - 6
1-3. Explanation of alarm messages .................................................................................................................... III - 8
1-4. Alarm messages on the outdoor PCB .......................................................................................................... III - 10
1-5. Symptoms and parts to inspect .................................................................................................................... III - 11
1-6. Procedures when a specific component does not work at all ....................................................................... III - 21
1-7. Service functions of remote controller .......................................................................................................... III - 23
(A) Set service check switches ............................................................................................................... III - 23
(B) Use the test run procedure ................................................................................................................ III - 24
(C) Check the sensor temperature readings ........................................................................................... III - 25
(D) Find out about past service problems ............................................................................................... III - 26
(E) Check the remote controller itself for correct operation .................................................................... III - 28
(F) Execute the auto. address operation ................................................................................................ III - 29
(G) Confirm and change the indoor unit address .................................................................................... III - 30
(H) Change the shift temperature in heating mode ................................................................................. III - 32
( I ) Set the indoor unit address ............................................................................................................... III - 33
(J) Change the period of the filter timer .................................................................................................. III - 36
2. Sensor and Solenoid Layout Diagram ......................................... III - 37
2-1. Outdoor unit ................................................................................................................................................... III - 37
2-2. Indoor unit ..................................................................................................................................................... III - 38
3. Thermistor Characteristic Curve...................................................III - 44
4. Test Run ..........................................................................................III - 45
4-1. PCB setting & test run .................................................................................................................................. III - 45
4-2. Main Alarm Messages which Indicate Mis-Wiring & Mis-Setting .................................................................. III - 47
4-3. Main Alarm Messages Indicating Unit Malfunction ....................................................................................... III - 47
5. PCBs and Their Location ...............................................................III - 48
6. Compressor Defects ......................................................................III - 51
6-1. Diagnosing and verifying compressor breakdowns ...................................................................................... III - 51
6-2. Judgment of 2 compressors replacement .................................................................................................... III - 51
7. Operation Procedure for Replacing the Compressor ................ III - 52
3. Service Procedures
III - 1
Service Procedures
3
SM830052