Service procedures – Sanyo KH2442 / CH2442 User Manual
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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