Self-Diagnosis Error Code Table - Panasonic CS-F14DD3E5 Service Manual

12.6. Self-diagnosis error code table

• The display screen on the wired remote control unit and the self-diagnosis LEDs (red) on the outdoor unit printed circuit board
in the outdoor unit can be used to indicate where the location of a problem is.
Refer to the table below to remove the cause of the problem, and then re-start the air conditioner system.
• If the problem disappears and operation returns to normal, the CHECK display on the remote control unit will switch off, but the
self-diagnosis LED will remain illuminated until operation is resumed.
Wired remote
control unit display
Abnormal Detail
display display
F15 -01
F16 -01
F17 -02
F20 -01
-02
F21 -01
F26 -01
F27 -01
-05
-01
-05
F30 -01
-02
F31 -01
-02
-06
-10
F32 -05
-06
F40 -21
-51
F41 -02
-12
F42 -11
LED Symbol
Outdoor unit printed circuit board
LED
2 3 4 5 6 7
Description
Off
Flashing
Illuminated
Location of problem
8
Drain level Float switch problem Drain pump and drain pipe, indoor unit
Louver switch problem
D. C Fan Motor problem
Indoor temperature sensor
problem
Remote control thermistor
problem
Pipe temp. sensor problem
(indoor unit)
Remote control transmission
problem
Indoor/outdoor unit
disconnection problem
Indoor/outdoor unit connection
error problem
Indoor/outdoor unit
disconnection problem
Indoor/outdoor unit connection
problem
System problem
Open phase, or reversed phase
of supply
Suction pressure protection
High-pressure cut-off
4 way valve information
Refrigerant system problem
Compressor overcurrent
protection
Compressor discharge temp.
protection
Heat exchanger outlet
temperature sensor problem
Compressor discharge
temperature sensor problem
High pressure switch open
circuit problem
Low pressure sensor problem
Current detector open circuit
83
Check location
connectors
Louver motor, decorative panel
connection terminal, or indoor unit louver
motor connectors
Indoor unit D.C. Fan motor or connection
terminals
Indoor temperature sensor lead wire or
indoor unit connector
Remote control thermistor
Pipe temperature sensor lead wire or
indoor unit connector
Remote control unit cable and connection
terminals
Indoor/outdoor unit connection cable and
connection terminals, or indoor unit power
supplies (indoor side)
Indoor/outdoor unit connection wire
(indoor side)
Indoor/outdoor unit connection cable and
connection terminals, or outdoor unit
power supplies (outdoor side)
Indoor/outdoor unit connection wire
(outdoor side)
Total capacity for the number of indoor
units is insufficient, or over. Check the
total capacity and the number of indoor
units
Check the main power supply terminal
board connections, or switch over any two
of the power supply wires.
Insufficient refrigerant or valve operation
(closed)
Check the Refrigeration system
Check the 4 way valve or lead wire
Valve operation (closed) or refrigerant
system
Open phase or lock in compressor
Insufficient refrigerant
Outdoor heat exchanger outlet
temperature sensor (COND TEMP) lead
wire, connector
Compressor discharge temperature
sensor (DIS T. TEMP) lead wire,
connector
High-pressure switch lead wire, connector
Low pressure sensor lead wire, connector
or valve operation (closed)
Outdoor unit current detector fault or
connector compressor fault or refrigerant
system