14
English
80AW9025
Error
code
Item
Failure when
Consequences
Diagnostics and solutions
2 zone kit fault codes
53
TWB2
Value out of
range
TWB2 temperature is not available.
Temperature control precision
decreases
Check sensor, wiring and electrical
connections
54
Room Sensor
Value out of
range + code
105.0=2 or
105.1=2
Room temperature is not available.
Related functions are not available.
Check sensor, wiring and electrical
connections.
Check setting of code 105.
55
TW2
Value out of
range + code
109.0=0
In zone 2:
3 way valve is close
Check sensor, wiring and electrical
connections.
Check code 109 setting.
56
Pressure Switch
Pressure is too
low
Turn OFF Water Pump1 & Pump 2.
Zone Valves full Close.
Pressure is too low.
Check for water leaks; add water to
the circuit.
57
Safety input
SAFETY Z1
input is active or
SAFETY Z2 input
is active (or both)
In corresponding zone:
- water pump is OFF
- 3 way valve is close
- room Priority is set to 0
Check floor heating thermal cut off if
connected.
If reset is needed, press the red
button and check climatic curve
settings (codes 133 to 144).
Check code 106.7 setting.
58
TW1
Value out of
range
In zone 1:
3 way valve is close
Check sensor, wiring and electrical
connections
60
EEProm corrupt EEProm is corrupt Entire system stops
Check settings of codes 100, 103,
105,106, 107.
If settings are correct, contact
service.
61
Communication
Master - Slave
Communication
lost + Code
100=2
Entire system stops
Check wiring and connections
63
System
configuration
code 100=1
+
code 103=2
Entire system stops
Check settings of codes 100 and 103.
66
Zone control
Code 100=2 +
code 105.0=2 +
code 105.1=2
Entire system stops
Check settings of codes 100 and 105
See hydronic module documentation for other diagnostics.
Maintenance
Safety recommendations
See hydronic module documentation and Safety
information manual.
L010129H25_gb.indd 14
4-07-2011 10:47:29