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4
Section Two
Trouble Shooting
Chapter I
Electronic Control Theory
First of all, let’s get a simple knowledge of electronic control theory, so that to seize the
key points of problems quickly and deal with problems more efficiently. An electronic
schematic diagram as following (this is a typical schematic diagram, for special machine ,
please note the circuit diagram attached to the machine ):
From above circuit diagram we can see that the whole diagram is divided into two parts:
compressor
water-
thrashed
motor
four-way
valve
fan-motor
water
level
switch
indoor
temperaturn
sensor
coil
pipe
sensor
transformer
Display Panel
(include
receiving
head)

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