Carrier 80AWX Series Installation Manual page 33

Maintenance
Error
Item
code
Value out of range
Room +
12 temperature Code 105.0=1 or
sensor zone 1 Code 105.0=2 or
Code 105.0=4 or
code 100=1
+
System
13 Communication
configuration
with slave board is
detected
HV
Communication
14 Communication
lost
with CDU
15 LWT Value out of range
Code 100=1 +
16 Zone control
code 105.0=2
Code 100=2 +
code 105.0=2 +
code 105.1 = 2
16 Zone control or
Code 100=2 +
code 105.0=4 +
code 105.1 = 4
Backup heater is
active
EH temperature +
34
warning TWB does not
increase by 1°C
every 30 min
Code 133=1 or 2 +
LOW domestic Domestic hot
hot water water priority=1 +
*
temperature Booster heater
warning schedule OFF +
code 1.5=0
Code 133=1 or 2 +
Disinfection cycle
not completed
within time
Disinfection not
35 defined by code
succesful
143 or
Disinfection cycle
not performed
due to error 5.
Outdoor unit
should run in cool
mode
+
Configuration Code 106.5=0 or
36
Mismatch Code 106.5=0 and
code 105.6=0 or
Unit is heat only
(80AWH)
Outdoor air
17 Value out of range Outdoor temperature not available
sensor
Failure when
Room temperature zone 1 not
available
Entire system stops
Outdoor unit stops
Domestic water valve OFF if code
127=1
Outdoor unit stops
Domestic water valve OFF if code
127=1
Outdoor unit, backup heaters,
domestic water valve, water pump:
OFF
Outdoor unit, backup heaters,
domestic water valve, water pump:
OFF
No effect on system operation
Domestic water tank electric heater
icon ( ) will flash on user interface
screen
Domestic hot water is not produced
(unless code 1.3=1 or the diagnostics
is removed cycling power)
Entire system stops.
Outdoor unit fault codes
Consequences Diagnostics and solutions
Check user interface wiring and
electrical connections
Check room sensor, wiring and
electrical connections
2 zone kit is installed.
Set code 100=2
Check sensor, wiring and electrical
connections
Change setting of code 105.
Change setting of code 105.
Check backup heater operation,
wiring and electrical connections.
Domestic hot water temperature is
cold and schedule prevents booster
heater activation.
User can activate booster heater
by setting code 1.5=1 (termporary
activation) or by enabling it in the
schedule.
Check code 140 to 144.
Check booster heater operation.
Check booster heater wiring and
electrical connections.
If code 127=2 check backup heater
operation.
Check domestic hot water
temperature sensor, wiring and
electrical connections
Modify setting of code 106.5.
Modify requested mode.
80AWX- 80AWH
33