4. Service procedures
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SM830076
4. SERVICE PROCEDURES
4-1 Troubleshooting .............................................................................................54
(1) Check before and after Troubleshooting ................................................ 55
(2) General Troubleshooting Flow Chart: Diagnosis and Remedy .............. 56
(3) Meanings of alarm messages ................................................................ 58
(4) LED Indication on the Outdoor Unit’s P.C.B. Ass’y ................................ 60
(5) Symptoms and parts to inspect .............................................................. 61
(6) Procedures When a Specific Component Does Not Work ..................... 71
(7) Service Functions of Optional Wired Remote Controller........................ 73
4-2 Checking the Electrical Components ............................................................ 87
(1) Measurement of Insulation Resistance .................................................. 87
(2) Checking the Protective Devices............................................................ 88
(3) Checking the Electrical Parts ................................................................. 89
(4) Sensor and Solenoid Layout Diagram.................................................... 92
(5) Thermistor Characteristic Curve............................................................. 94
(6) P.C.B. Setting..........................................................................................95
(7) R.C Address Setting Method.................................................................. 96
(8) Automatic Address Setting Method ........................................................ 97
(9) Displaying Indoor / Outdoor Unit Combination Numbers ....................... 97
(10) Items to Check Prior to Test Run ........................................................... 98
(11) Test Run..................................................................................................99
(12) P.C.B. and Parts Location.................................................................... 102
(13) Checking procedure for each PC Board............................................... 104
(14) Check Pins ............................................................................................105
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