Amana AVZC20 Series Service Instructions Manual page 85

TROUBLESHOOTING
ClimateTalk PCB LED Transmitted ClimateTalk
Fault Code Display
53 - PCB PR FAN MIN
54 - EEV MINOR
55 - HI DIS TEMP MIN
57 - CL LOOP SWEAT
B0 Eb0 NO ID AIRFLOW
B9 Eb9 LOW ID AIRFLOW
D0 Ed0 NO NET DATA
D1 Ed1 INVALID DATA
D2 Ed2 INVALID SYSTEM
D3 Ed3 INVALID CONFIG
D4 Ed4 INVALID MC DATA
11 E11 RUN SYS TEST
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.
Thermostat Fault
Message
This error indicates the equipment is
experiencing frequent outdoor control
board and/or motor faults.
Control has determined continued
operation is acceptable. This indicates
there may be a problem with the
equipment.
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.
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.
This indicates the control is sensing
sweating on the cooling loop.
The estimated airflow from indoor
subsystem is near to 0 CFM.
Estimated airflow from motor is lower
than the airflow requirement.
Control board does not have the
necessary data for it to properly perform
its functions.
Control board does not the appropriate
data needed to properly perform its
functions.
The airflow requirement is greater than
the airflow capability of the indoor
subsystem.
There is a mismatch between the shared
data and the control physical hardware.
The memory card data has been
rejected.
Items below are messages only displayed on the thermostat screen.
This test is required at startup. Installer
should navigate to the ComforrtNet User
Menu, choose Air Conditioner, then EQUIP
TEST and SYSYTEM TEST. Selecting ON
will run the required test. Display will clear
once testing is complete.
OUTDOOR UNIT ERROR CODES
Probable Causes
● Obstruction in fan rotation
● Ooutdoor fan motor not connected properly
● Outdoot fan not running
● Faulty control board
● Noise
● Thermistors inoperable or improperly
connected
● Faulty TXV
● Faulty control board
● Discharge thermistor inoperable or
improperly connected
● Discharge thermistor is put on incorrect
position or off
● Low refrigerant charge
● Overcharge
● Faulty compressor
● Refrigerant Leak
● Low refrigerant charge
● Faulty TXV
● Thermistors inoperable or improperly
connection
● Failed indoor blower motor
● Indoor fan motor not properly connected
● Too much static pressure
● Failed indoor blower motor
● Indoor fan motor not properly connected
● Too much static pressure
● Air conditioner is wired as part of a
communicating system and integrated control
module does not contain any shared data.
● Air conditioner 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.
● Air conditioner/heat pump 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.
● Shared data sent to integrated control module
does not match hardware configuration.
● Shared data on memory card has been
rejected.
● Incomplete SYSTEM TEST
● SYSTEM TEST is running
Corrective Actions
● 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 TXV; 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 refrigerant charge level; Adjust if needed
● Check the compressor; Repair/replace if needed
● Test for system leaks using leak test procedure
● Check refrigerant charge level; Adjust if needed
● Check TXV; Replace if needed
● Check the connection to thermistors; Repair/replace
if needed
● Check ID fan motor wiring and connectors;
Repair/replace if needed
● Check ID fan motor; Replace if needed
● Check ID fan motor wiring and connectors;
Repair/replace if needed
● Check ID fan motor; Replace if needed
● Replace control board if necessary
● Re-write shared data using memory card
● Replace control board if necessary
● Re-write shared data using memory card
● Verify shared data is correct for your specific model;
Repopulate data if required
● Check communication wiring. Repair as needed.
● Verify shared data is correct for your specific model;
Repopulate data if required.
● Verify shared data is correct for your specific model;
Repopulate data if required.
MESSAGE ONLY
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