6 720 645 347 (2010/09)
68
|
Troubleshooting
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
A temperature sensor is
connected to the IUM.
Remove the temperature
sensor and insert a coding plug
if necessary.
Fault 34
Temperature sensors connected and mode
of operation do not match
23
Temperature sensors
connected to the IPM and the
associated operating mode do
not match.
Check temperature sensors
and associated operating
mode and adjust if necessary.
Fault 40
Temperature sensor T1 on collector group 1
faulty
101 Short circuit on the sensor
lead (T
1
).
Check temperature sensor (T
1
)
and replace if necessary.
102 Break in the sensor lead (T
1
).
Fault 41
Temperature sensor T2 at bottom of solar
cylinder faulty
103 Short circuit on the sensor
lead (T
2
).
Check temperature sensor (T
2
)
and replace if necessary.
104 Break in the 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. 17)
Text
Code Cause
Remedy (by contractor)
