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Section
IV - 1
SM830082
4. Service procedures
4. SERVICE PROCEDURES
4-1 Troubleshooting ...................................................................................... IV - 2
(1) Check before and after Troubleshooting ......................................... IV - 3
(2) General Troubleshooting Flow Chart: Diagnosis and Remedy ....... IV - 4
(3) Meanings of alarm messages.......................................................... IV - 6
(4) LED Indication on the Outdoor Unit’s P.C.B. Ass’y ......................... IV - 8
(5) Symptoms and parts to inspect ....................................................... IV - 9
(6) Procedures When a Specific Component Does Not Work .............. IV - 19
(7) Service Functions of Remote Controller .......................................... IV - 21
4-2 Checking the Electrical Components ...................................................... IV - 30
(1) Measurement of Insulation Resistance ........................................... IV - 30
(2) Checking the Protective Devices ..................................................... IV - 31
(3) Checking the Electrical Parts........................................................... IV - 32
(4) Thermistor Characteristic Curve ...................................................... IV - 35
(5) PCB Setting ..................................................................................... IV - 36
(6) R.C Address Setting Method ........................................................... IV - 37
(7) Automatic Address Setting Method ................................................. IV - 38
(8) Displaying Indoor / Outdoor Unit Combination Numbers................. IV - 38
(9) Items to Check Prior to Test Run .................................................... IV - 39
(10) Test Run .......................................................................................... IV - 40
(11) PCBs and Their Location................................................................. IV - 42
(12) Checking procedure for each PC Board .......................................... IV - 44
(13) TMX60 Pins ..................................................................................... IV - 45