18
2.2 solutions
phenomenon
reason
check
clear
The machine does
not work,
operation panel
with a display
But cannot be
switched,
button is failure
1: Operation panel line
not connected;
2: Operation board is
broken;
3: Disturbed;
4: Voltage Low;
5: The electronic
control board is broken
1: Check the line;
2: Alternative Method;
3: Check the source of interference;
4: Check the line voltage;
5: Alternative Method
1: Connect the line;
2: Change operation panel;
3: Eliminate interference source
replace line (with shield);
4: Transformation of the line or
increase Regulators;
5: Change electronic control
board
The machine does
not work,
the operation
panel display
1: Transformer is
broken;
2: Operation plate line
not connected;
3: Operation board is
broken;
4: The electronic
control board is broken
5: Disturbed
1: Measuring with a multimeter;
2: Check the line;
3: Alternative Method;
4: Alternative Method;
5: Check the interference lines have
unshielded cable or not
1: Replace the transformer;
2: Soldering iron;
3: Change the Control Panel;
4: Change electronic control
board;
5: Eliminate interference source
replace line (with shield)
Fan does not
work, and without
supply input
1: Power outages;
2 Circuit breaker;
3:The electronic control
board is broken (no
output);
4: Transformer is
broken
1: Measuring line voltage;
2: Measuring line;
3: Measure the output voltage;
4: Measuring winding, measuring the
output voltage
1: Wait to restore power;
2: Connect the line;
3: Change electric boards;
4: Change transformers
Fan does not
work, capacitor is
broken
1:Capacity
becomes smaller;
2: Open circuit;
3: Short circuit;
1: Check the capacity of the
capacitor;
2: Measuring with a multimeter;
3: Measuring with a multimeter
1: Change capacitor;
2: Change capacitor;
3: Change capacitor
Fan
does
not
work,
motor
breaks down
1: The motor winding
road blocking, short
circuit, ground wiring
1: measuring winding
1: Change motor
Compressor does
not work, the
1: No Power;
2: Set the temperature
1: Check the operation panel;
2: Check the set temperature;
1: Power on;
2: Reset;
6
A26
Return gas sensor fault
16
A62
Compressor(input) Excessive current
fault
7
A11
Reserved
17
A63
Exhaust gas temp.overhigh protection
8
A12
LP switch abnormal failure
18
A64
Winter antifreeze protection
9
A13
HP switch abnormal failure
19
A70-A93
IPM module protection
10
A14
Reserved