Daikin DZ17VSA Instructions D'installation page 28

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rouBleShootIng
ClimateTalk PCB LED Transmitted ClimateTalk
Fault Code Display Message
43 E43 HiGH linE VolT
44 E44 oP TEMP rAnGE
45 E45 no coolinG TEST
47 E47 no SYS VEr TEST
49 E49 no cHArGE MoDE
50 E50 linE VolT cTrl
51 E51 oD coMM Error
52 - coMP fAil Minor
53 - PcB or fAn Min
54 - EEV Minor
55 - Hi DiS TEMP Min
56 E56 SUcT TEMP fAil
57 - cl looP SWEAT
58 E58 ol oPEn
59 E59 rV fAil
no HP HEAT
60 E60
(WArM UP)
B0 Eb0 no iD AirfloW
Thermostat Fault
Control detects a high power supply
• High line voltage supply
voltage condition.
The control detects the outdoor
temperature outside recommended
• Ambient air conditions too high or low
operational range. Unit may continue
to operate normally.
The control is unable to start the
Cooling mode test because indoor
• Heat provided by secondary heating
heat has been turned on by ther-
mostat. Please set thermostat to off
position.
The control is unable to start the
System Verification test because
• Heat provided by secondary heating
indoor heat has been turned on by
thermostat. Please set thermostat to
off position.
The control is unable to enter
Charging Mode because indoor heat • Heat provided by secondary heating
has been turned on by thermostat.
Please set thermostat to off position.
This indicates there is a voltage • High or low voltage from supply voltage or
issue on the control board. See
service manual for troubleshooting • Faulty control board
information. • Noise
This indicates potential communica-
tion issues have been detected by • Communication wiring disconnected
the outdoor control board.
This error indicates the equipment is
experiencing frequent compres-
• Stop valve not completely open
sor faults. Control has determined
• The compressor wire is lost phase
continued operation is acceptable.
• Compressor motor failure
This indicates they may be a problem
with the equipment.
This error indicates the equipment is
experiencing frequent outdoor control • Obstruction in fan rotation
board and/or motor faults. Control • Outdoor fan motor not connected properly
has determined continued operation • Outdoor fan not running
is acceptable. This indicates they
• Faulty control board
may be a problem with the equip- • Noise
ment.
This error indicates the equipment is
experiencing frequent low discharge
• Thermistors inoperable or improperly
superheat faults.
Control has determined continued
• Faulty indoor EEV or indoor EEV coil
operation is acceptable. This indi-
• Faulty control board
cates they may be a problem with the
equipment.
• Discharge thermistor inoperable or improp-
This error indicates the equipment is
experiencing frequent high discharge
• Discharge thermistor is put in incorrect
temperature faults. Control has
determined continued operation is
• Low refrigerant charge
acceptable. This indicates they may
• Overcharge
be a problem with the equipment.
• Faulty compressor
The control has detected if the • Suction thermistor inoperable or not prop-
Outdoor Suction Temperature Sensor
is out of range.
• Faulty reversing valve
• Refrigerant Leak
This indicates the control is sensing • Low refrigerant charge
sweating on the cooling loop. • Faulty indoor EEV or indoor EEV coil
<3.5 - 5.0 ton only> • Thermistors inoperable or improperly
The Overload Protection sensor for • Overload protection (OL) sensor inoper-
Compressor is opened.
• Faulty reversing valve body or coil
This indicates the equipment is expe- • Low refrigerant charge
riencing reversing valve faults. • Faulty pressure sensor
• Faulty control board
No heat pump heating.
• Need 2 hour power ON.
Need warming up on compressor to
• Need heat up on compressor motor/oil.
run properly.
• Failed indoor blower motor
The estimated airflow from indoor
• Indoor fan motor not properly connected
subsystem is near to 0 CFM.
• Too much static pressure
Probable Causes
source
source
source
frequency
connected
erly connected
position or off
erly connected
connection
able
28 28
Corrective Actions
• Verify unit is connected to power supply as specified on
rating plate
• Correct high line voltage condition; Contact local utility if
needed
• Cycle power; re-try during usable ambient temperature
range
• Turn off Furnace or heater using thermostat before
operation
• Turn off Furnace or heater using thermostat before
operation
• Turn off heater using thermostat before operation
• Correct low/high line voltage condition; Contact local utility
if needed
• Replace control board if necessary
• Contact local utility if needed
• Check communication wiring; Repair as needed
• Check the opening of stop valve, should be full open;
Repair/replace if needed
• Check the wire between control board and compressor
• Inspect compressor motor for proper function; Replace if
necessary
• Check and clean grille of any debris
• Check wiring from Outdoor fan motor to control board;
Repair if needed
• Check outdoor fan motor & wiring; Repair/replace if
needed
• Replace control board if necessary
• Check the connection to thermistors; Repair/replace if
needed
• Check indoor EEV; Replace if needed
• Check indoor EEV coil; Replace if needed
• Replace control board if necessary
• Check discharge thermistor resistance and connections;
Repair/replace as needed
• Check discharge thermistor position
• Check refrigerant charge level; Adjust if needed
• Check the compressor; Repair/replace if needed
• Check the connection to suction thermistor; Repair/re-
place if needed
• Check reversing valve; Replace if needed
• Test for system leaks using leak test procedure
• Check refrigerant charge level; Adjust if needed
• Check indoor EEV; Replace if needed
• Check indoor EEV coil; Replace if needed
• Check the connection to thermistors; Repair/replace if
needed
• Check resistance on OL sensor to verify operation;
Replace if needed.
• Check OL sensor position on compressor body.
• Check reversing valve body or coil; Replace if needed
• Check refrigerant charge level; Adjust if needed
• Check pressure sensor; Replace if needed
• Replace control board if necessary
• Wait for 2 hours after turn-on power on Outdoor unit.
• Use secondary heat source.
• Check ID fan motor wiring and connectors; Repair/replace
if needed
• Check ID fan motor; Replace if needed
• Check the obstruction inside duct work.