Carrier 80AWX Series - Page 33

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