Daikin DZ20VC - Re-writing Shared Data via Memory Card

72
TROUBLESHOOTING
OUTDOOR UNIT ERROR CODES
RE-WRITING SHARED DATA TO OUTDOOR UNIT USING MEMORY CARD
Check Toubleshooting codes to determine the need to flash shared data to outdoor unit.
Follow the procedure on the next page to flash shared data.
Fault Code
Control Board
LED Display
Transmitted Climate
Talk Message *1
Thermostat Fault Probable Causes Corrective Actions
53 PCB OR FAN MIN
This error indicates the
equipment is experiencing
frequent outdoor control board
and/or motor faults. Control
has determined continued
operation is acceptable. This
indicates they may be a
problem with the
equipment.
• Obstruction in fan rotation
• Outdoor fan motor not connected
properly
• Outdoor fan not running
• Faulty control board
• Noise
• 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
54 EEV MINOR
This error indicates the
equipment is experiencing
frequent low discharge
superheat faults.
Control has determined
continued operation is
acceptable. This indicates
they may be a problem with
the equipment.
• Thermistors inoperable or
improperly connected
• Faulty indoor EEV or TXV or
indoor EEV coil
• Faulty control board
• DV**PEC air handler is
connected with an incompatible
model
• Check the connection to thermistors;
Repair/replace if needed
• Check indoor EEV or TXV; Replace if
needed
• Check indoor coil; Replace if needed
• Replace control board if necessary
• Replace indoor unit with TXV
applicable indoor unit
55 HI DIS TEMP MIN
This error indicates the
equipment is experiencing
frequent high discharge
temperature faults. Control
has determined continued
operation is acceptable. This
indicates they may be a
problem with the equipment.
• Discharge thermistor inoperable
or improperly connected
• Discharge thermistor is put on
incorrect position or off
• Low refrigerant charge
• Overcharge
• Faulty compressor
• Check discharge thermistor
resistance and connections;
Repair/replace as needed
• Check discharge thermistor position
• Check refrigerant charge level; Adjust
if needed
• Check refrigerant charge level; Adjust
if needed
• Check the compressor;
Repair/replace if needed
57 CL LOOP SWEAT
This indicates the control is
sensing sweating on the
cooling loop.
• Refrigerant leak
• Low refrigerant charge
• Faulty indoor EEV or TXV or
indoor EEV coil
• Thermistors inoperable or
improperly connected
• DV**PEC air handler is
connected with an incompatible
model
• Test for system leaks using leak test
procedure
• Check refrigerant charge level; Adjust
if needed
• Check indoor EEV or TXV; Replace if
needed
• Check indoor EEV coil; Replace if
needed
• Check the connection to thermistors;
Repair/replace if needed
• Replace indoor unit with TXV
a
pp
licable indoor uni
t
BO EbO NO ID AIRFLOW
The estimated airflow from
indoor subsystem is near to 0
CFM.
• Failed indoor blower motor
• Indoor fan motor not properly
connected
• Too much static
p
ressure
• Check ID fan motor wiring and
connectors; Repair/replace if needed
• Check ID fan motor; Replace if
needed
B9 Eb9 LOW ID AIRFLOW
Estimated airflow from motor
is lower than the airflow
requirement.
• Failed indoor blower motor
• Indoor fan motor not properly
connected
• Too much static
p
ressure
• Check ID fan motor wiring and
connectors; Repair/replace if needed
• Check ID fan motor; Replace if
needed
DO EdO NO NET DATA
Control board does not have
the necessary data for it to
properly perform its functions.
• Outdoor unit is wired as part of a
communicating system and
integrated control module does not
contain an
y
shared data.
• Replace control board if necessary
• Re-W rite shared data using memory
card
D1 Ed1 INVALID DATA
Control board does not the
appropriate data needed to
properly perform its functions.
• Outdoor unit is wired as part of a
communicating system and
integrated control module contains
invalid shared data or network data
is invalid for the integrated control
module.
• Replace control board if necessary
• Re-W rite shared data using memory
card
D2 Ed2 INVALID SYSTEM
The airflow requirement is
greater than the airflow
capability of the indoor
subsystem.
• Outdoor unit is wired as part of a
communicating system and
outdoor unit requires airflow
greater than indoor unit's airflow
capability
• Shared data is incompatible the
system or missing parameters
• Communication wiring has loose
connection.
• Verify shared data is correct for your
specific model; Repopulate data if
required
• Check communication wiring. Repair
as needed.
D3 Ed3 INVALID CONFIG
There is a mismatch between
the shared data and the
control physical hardware
• Shared data sent to integrated
control module does not match
hardware configuration
• Verify shared data is correct for your
specific model; Repopulate data if
required
D4 Ed4 INVALID MC DATA
The memory card data has
been rejected
• Shared data on memory card
has been rejected.
• Verify shared data is correct for your
specific model; Repopulate data if
required
11 E11 RUN SYS TEST
This test is required at startup.
Installer should navigate to the
thermostat menu to run
SYSTEM START -UP TEST.
This code will clear once
testing is complete.
• Incomplete SYSTEM TEST
• SYSTEM TEST is running
Run the SYSTEM START -UP TEST.
(See the " SYSTEM START -UP
TEST")
(*1) This message is displayed when using the CTK04 thermostat.
Items below are messa
g
es onl
y
dis
p
la
y
ed on the thermostat screen.