Daikin ComfortNet DX16TC Series Service Instructions Manual page 64

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.
d 3
Mis-match
d 4 Invalid
Memory
Card Data
0 1 Low Side LOW SIDE
Fault
0 1 Low Pressure
Cut Out Trip
d3 Shared data sent
to integrated
control module
does not match
hardware
d4 Shared data on
MC DATA memory card has
been rejected.
01 Low refrigerant
FAULT charge.
Restriction in
liquid line.
Indoor blower
motor failure.
Indoor
thermostat set
extremely low.
01 Low refrigerant
charge.
Restriction in
liquid line.
Indoor blower
motor failure.
Indoor
thermostat set
extremely low.
64
Verify Turn power OFF prior
system type to repair.
(communicating Use memory card for
or legacy).
Verify shared Insert memory card
data is correct BEFORE turning power
model; re- be removed after data
populate data if is loaded. Turn power
required. OFF before removing
Wire system as memory card.
legacy system. Error code will
be cleared once
data is loaded.
Applies only to fully
communicating system
thermostat.
Verify Turn power OFF prior
system type to repair.
(communicating Use memory card for
or legacy).
Verify shared Insert memory card
data is correct BEFORE turning power
model; re- be removed after data
populate data if is loaded. Turn power
required. OFF before removing
Wire system as memory card.
legacy system. Error code will be
cleared once data is
loaded.
Verify refrigerant Turn power OFF prior
charge; adjust as to repair.
needed. Fault will clear after 30
Check for consecutive normal
restricted liquid cycles.
line; repair/ Fault may be cleared
replace as by cycling 24VAC to
needed. control.
Check indoor Replace with correct
blower motor; replacement part(s).
repair/replace as
needed.
Check indoor
thermostat setting.
Verify refrigerant Turn power OFF prior
charge; adjust as to repair.
needed. Replace with correct
Check for replacement part(s).
restricted liquid
line; repair/
replace as
needed.
Check indoor
blower motor;
repair/replace as
needed.
Check low
pressure switch;
repair/replace as
needed.
Check indoor
thermostat setting.