Daikin ComfortNet DX16TC Series Service Instructions Manual page 62
Condensing units, split system heat pumps with r-410a refrigerant blowers, coils, & accessories
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Also See for ComfortNet DX16TC Series:
- Service instructions manual (93 pages) ,
- Service instructions manual (122 pages)
Table of Contents
SERVICING
Integrated control
module diagnostic/status
LED display shows the
indicated code.
displays '---' in the
temperature display area.
Heat pump fails to operate
in heating mode.
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.
Air conditioner/heat pump
fails to operate.
Integrated control
module diagnostic/status
LED display shows the
indicated code.
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 operates at reduced
performance.
Air conditioner/heat pump
operating at low stage
when expected to operate
at
high stage.
Integrated control
module diagnostic/status
LED display shows the
indicated code.
A
2
Outdoor air
temp sensor
fault
A
3
Outdoor coil
temp sensor
fault
E
5
Open fuse
E
E
Board mis-
operation
b
0
Circulator
blower motor
is not running
when it
should be
running.
b
9
lower than
demanded
AIR
A2
Shorted sensor.
Open sensor.
FLT
Sensor
disconnected.
Sensor out of
range.
COIL
A3
Shorted sensor
Open sensor.
FLT
Sensor.
disconnected.
Sensor out of
range.
E5
Short in low
FUSE
voltage wiring.
EE
Compressor
FAULT
relay contacts
welded.
MOTOR
b0
Indoor blower
motor problem.
Communications
error between
indoor and
outdoor unit.
LOW ID
b9
Indoor blower
AIRFLOW
motor problem
Restrictive/
undersized
ductwork
Indoor/ outdoor
unit miss-match.
62
Check sensor
Turn power OFF prior
connection.
to repair.
Replace open/
Replace with correct
shorted sensor.
replacement part.
Check sensor
Turn power OFF prior
connection.
to repair.
Replace open/
Replace with correct
shorted sensor.
replacement part.
Locate and
Turn power OFF prior
correct short
to repair.
in low voltage
Replace fuse with
wiring.
3-amp automotive type.
Replace control.
Turn power OFF prior
to repair
Replace with correct
replacement part.
Check indoor
Turn power OFF prior
blower motor.
to repair.
Check indoor
Applies only to fully
blower motor
communicating system
wiring.
Check indoor unit
thermostat.
control.
Replace with correct
Repair/ replace
replacement part.
any faulty wiring.
Repair/ replace
indoor blower
motor or control.
Check indoor
Turn power OFF prior
blower motor.
to repair.
Applies only to fully
clean/replace as
communicating system
needed.
Check ductwork;
thermostat.
resize as needed.
Replace with correct
Verify indoor and
replacement part. See
outdoor units are
properly matched.
and maximum external
static pressure.
sheets for approved
system matches.
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Troubleshooting
