Operation Manual

6 720 645 349 (2010/09)
62 | Troubleshooting
Fault 29
Unable to save parameter settings
202 BUS subscriber configured but
not available at present.
Check system structure, check
system configuration, adjust as
necessary and reset
parameters on remote control.
Fault 30
Mixer temperature sensor faulty
7 Mixer temperature sensor (MF)
connected to IPM faulty.
Check mixer temperature
sensor (MF) and replace if
necessary.
Fault 31
External CH flow temperature sensor faulty
6 Common temperature sensor
(VF) connected to the IPM
faulty.
Check common temperature
sensor (VF) and replace if
required.
Fault 32
Cylinder temperature sensor faulty
8 Cylinder temperature sensor
(SF) connected to the IPM
faulty.
Check cylinder temperature
sensor (SF) and replace if
required.
Fault 33
Temperature sensors incorrectly
connected
20 Cylinder temperature sensor
(SF) and mixer temperature
sensor (MF) are connected to
the IPM.
Remove one of the
temperature sensors
(SF or MF).
21 Two common temperature
sensors (VF) are connected to
the IPM.
Remove one of the common
temperature sensors (VF).
22 Temperature sensor connected
to IUM.
Remove temperature sensor
and insert a coding plug if
necessary.
Fault 34
Temperature sensors connected and mode
of operation do not match
23 Temperature sensor connected
to IPM and associated
operating mode do not match.
Check temperature sensor and
associated operating mode
and adjust if necessary.
Fault 40
Temperature sensor T1 on collector
group 1 faulty
101 Short circuit on sensor lead
(T
1
).
Check temperature sensor (T
1
)
and replace if necessary.
102 Break in sensor lead (T
1
).
Fault 41
Temperature sensor T2 at bottom of solar
cylinder faulty
103 Short circuit on sensor lead
(T
2
).
Check temperature sensor (T
2
)
and replace if necessary.
104 Break in sensor lead (T
2
).
Fault 50
Solar pump jammed or air in system
121 Solar circuit pump (SP)
sticking due to physical
blockage.
Unscrew and remove slotted
screw on pump head and use a
screwdriver to release pump
shaft. Do NOT strike the pump
shaft with the screwdriver.
Air in solar thermal system. Vent solar thermal system and
top up with heat transfer fluid
if necessary.
Information displayed
(Æ items 1, 3 and 4 in Fig. 25)
Text Code Cause Remedy (by contractor)