Friedrich Breeze Series User Manual

86 PB
TROUBLESHOOTING
Diagnostic Codes ‑ Outdoor Unit
Fault
code
Fault description
Possible reasons for
abnormality
How to deal with Remarks
14
The high pressure switch
operation or the unit is turned
off for high pressure protection
1. The wiring of the high
pressure switch is connected
loosely;
2. The high pressure switch
fails;
3. The outdoor control board is
abnormal;
4. Overload in cooling;
5. Overload in heating.
1. Reconnect the wiring of the
high pressure protector;
2. Replace the high pressure
switch;
3. Replace the outdoor control
board;
4. Please refer to NOTE 3;
5. Please refer to NOTE 4."
Applied to models with
high pressure switch
or pressure sensor
15
The low pressure switch
protection or the unit is turned
off for low pressure protection
1. The wiring of the low
pressure switch is connected
loosely;
2. The low pressure switch fails;
3. The refrigerant is low;
4. The expansion valve fails in
heating mode;
5. The outdoor control
board has failed.
1. Reconnect the wiring of the
low pressure switch;
2. Replace the low pressure
switch;
3. Check the welding point to
confirm whether the unit leaks,
and add some refrigerant;
4. Replace the expansion valve;
5. Replace the outdoor
control board.
Applied to models with
low pressure switch or
pressure sensor
16
Overload protection
in cooling mode
System overload Please refer to NOTE 3.
17
Discharge temperature
sensor fault
1. The wiring of the discharge
temperature sensor is
connected loosely;
2. The discharge temperature
sensor fails;
3. The sampling circuit
on outdoor control
board has failed..
1. Reconnect the wiring of the
discharge temperature sensor;
2. Replace the discharge
temperature sensor;
3. Replace the outdoor
control board.
18 AC voltage is abnormal
1. The AC voltage>275V or
<160V;
2. The AC voltage of
sampling circuit on the
driver board is abnormal.
1. Normal protection, please
check the supply power;
2. Replace the driver board.
19
Suction temperature
sensor fault
1. The wiring of the suction
temperature sensor is
connected loosely;
2. The suction temperature
sensor fails;
3. The sampling circuit
on outdoor control
board has failed..
1. Reconnect the wiring of the
suction temperature sensor;
2. Replace the suction
temperature sensor;
3. Replace the outdoor
control board.
22 The defrosting sensor fault
1. The wiring of the defrosting
sensor is connected loosely;
2. The defrosting sensor fails;
3. The sampling circuit
is abnormal.
1. Reconnect the wiring of the
defrosting sensor;
2. Replace the defrosting
sensor;
3. Replace the outdoor
control board.
43 High Pressure sensor fault
1. The wiring of the high‑
pressure pressure sensor
connect is loose;
2. The high‑pressure pressure
sensor fails.
3. The sampling circuit of the
high‑pressure sensor fails.
1. Reconnect the wiring of the
high‑pressure pressure sensor;
2. Replace the high‑pressure
sensor;
3. Replace the outdoor
control board."
45 IPM fault
There are many reasons for
this failure. You can check
the driver board fault LED
to further analyze the fault
code of the drive board and
to learn about what leads to
the fault and how to operate
it. Specific information can
be seen in table 2, table 3.
See Driver PCB
Diagnostic codes
Diagnostic Codes ‑Drive
Faults 24‑36k
Diagnostic Codes ‑Drive Faults
48‑60k

Friedrich Breeze Series Specifications

General

Brand	Friedrich
Model	Breeze Series
Category	Heat Pump
Language	English