Daikin ComfortNet DX18TC Service Instructions Manual page 54

SERVICING
Air conditioner/heat pump
fails to operate.
Integrated control module
diagnostic/status LED
display shows the indicated
code.
displays error message.
Air conditioner/heat pump
fails to operate.
Integrated control
module diagnostic/status
LED display shows the
indicated code.
displays error message.
Very long run time.
Four consecutive
compressor protector
trips with average run
time between trips greater
than 3 hours.
Compressor operating at
high speed and outdoor fan
operating at low speed
Integrated control
module diagnostic/status
LED display shows the
indicated code.
Compressor and outdoor
fan are off.
Thermostat demand is
present.
Integrated control
module diagnostic/status
LED display shows the
indicated code.
54
d 3 Configuration
Mis-match
d 4 Invalid
Memory MC DATA
Card Data
0 1 Low Side LOW SIDE
Fault FAULT
0 1 Low Pressure
Cut Out Trip
d3 Shared data sent Verify
to integrated system type
control module (communicating
does not match or legacy).
hardware Verify shared
configuration. data is correct
for your specific
model; re-
populate data if
required.
Wire system as
legacy system.
d4 Shared data on Verify
memory card has system type
been rejected. (communicating
or legacy).
Verify shared
data is correct
for your specific
model; re-
populate data if
required.
Wire system as
legacy system.
01 Low refrigerant Verify refrigerant
charge. charge; adjust as
Restriction in needed.
liquid line. Check for
Indoor blower restricted liquid
motor failure. line; repair/
Indoor replace as
thermostat set needed.
extremely low. Check indoor
blower motor;
repair/replace as
needed.
Check indoor
thermostat setting.
01 Low refrigerant Verify refrigerant
charge. charge; adjust as
Restriction in needed.
liquid line. Check for
Indoor blower restricted liquid
motor failure. line; repair/
Indoor replace as
thermostat set needed.
extremely low. Check indoor
blower motor;
repair/replace as
needed.
Check low
pressure switch;
repair/replace as
needed.
Check indoor
thermostat setting.
PCBHR104
Turn power OFF prior
to repair.
Use memory card for
your specific model.
Insert memory card
BEFORE turning power
be removed after data
is loaded. Turn power
OFF before removing
memory card.
Error code will
be cleared once
data is loaded.
Applies only to fully
communicating system
thermostat.
Turn power OFF prior
to repair.
Use memory card for
your specific model.
Insert memory card
BEFORE turning power
be removed after data
is loaded. Turn power
OFF before removing
memory card.
Error code will be
cleared once data is
loaded.
Turn power OFF prior
to repair.
Fault will clear after 30
consecutive normal
cycles.
Fault may be cleared
by cycling 24VAC to
control.
Replace with correct
replacement part(s).
Turn power OFF prior
to repair.
Replace with correct
replacement part(s).