2. Thermal output, by measuring the difference in temperature between
heating flow and return.
3. The setting for the safety thermostats.
8 Troubleshooting
8.1
Error codes
8.1.1
Error messages
If an error occurs, the control panel displays an error message and the
corresponding code.
1. Make a note of the code displayed.
The code is important for the correct and rapid diagnosis of the type
of error and for any technical assistance that may be needed.
2. Switch the generator off and switch it back on.
The generator starts up again automatically when the reason for the
disruption has been eradicated.
3. If the code is displayed again, follow the instructions shown on the
control panel to resolve the problem.
4. Contact the professional who handles maintenance of the appliance.
8.1.2
Faults
In the event of operational failure, the control panel flashes and displays
an error message and a corresponding code.
1. Make a note of the code displayed.
The code is important for the correct and rapid diagnosis of the type
of error and for any technical assistance that may be needed.
2. Press the
key to clear the fault.
3. If the code is displayed again, switch off the appliance and then switch
it back on.
4. Press the
key to proceed with resolving the problem.
5. If the code is displayed again, follow the instructions shown on the
control panel to resolve the problem.
6. Contact the professional who handles maintenance of the appliance.
Fig.33
bar
1
1
2
2
r
c
STD
(
t
v
0
2
4
6
8
10
12
14
16
18
22
24
20
p
b
AUTO
x c
r
j
M
g
m
SUNDAY 11:45
TEMP. : 68°
PCU. COM. FAIL. D27
C002604-B-04
Fig.34
bar
1
1
2
2
r
c
STD
(
'
t
v
0
2
4
6
8
10
12
14
16
18
22
24
20
p
b
AUTO
x c
r
j
M
g
m
SUNDAY 11:45
TEMP. : 68°
PCU COM.FAIL D27
C002302-D-04
8 Troubleshooting
7611407 - v07 - 14022022
GSHP
33
