D Fault Codes - Glow-worm Compact 24c-AS/1 Installation And Maintenance Instructions Manual

Code
S.76
S.88
S.91
S.96
S.98
D Fault codes
Note
Since the code table is used for various products, some codes may not be visible for the product in question.
Code/meaning
F.00
Flow temperature sensor inter-
ruption
F.01
Return temperature sensor in-
terruption
F.10
Flow temperature sensor short
circuit
F.11
Return temperature sensor
short circuit
F.13
Cylinder temperature sensor
short circuit
F.20
Temperature cut-out safety
shutdown
F.22
System pressure too low
0020313973_01 Compact Installation and maintenance instructions
Meaning
A service message is activated. Check the water pressure.
The purge programme is active.
The exhibition mode is activated.
The self-test for the return temperature sensor is activated. Heat demands are blocked.
The self-test for the flow/return temperature sensor is activated. Heat demands are blocked.
Possible cause
Plug for flow temperature
sensor loose/not plugged in
Flow temperature sensor de-
fective
Multiple plug loose/not plugged
in
Interruption in the cable harness
Plug for return temperature
sensor loose/not plugged in
Return temperature sensor de-
fective
Multiple plug loose/not plugged
in
Interruption in the cable harness
Flow temperature sensor de-
fective
Short circuit in the cable har-
ness
Flow temperature sensor cable
defective
Return temperature sensor de-
fective
Short circuit in the cable har-
ness
Return temperature sensor
cable defective
Cylinder temperature sensor
defective
Short circuit in the cable har-
ness
Short circuit in the connection
cable
Flow temperature sensor de-
fective
Return temperature sensor de-
fective
Earth connection faulty
Black discharge via the ignition
cable, ignition plug or ignition
electrode
Insufficient/no water in the
product.
Water pressure sensor defect-
ive
Interruption in the cable harness
Measure
▶
Check the plug and the plug connection for the flow temperat-
ure sensor.
▶
Replace the flow temperature sensor.
▶
Check the multiple plug and plug connection.
▶
Check the cable harness.
▶
Check the plug and the plug connection for the return temper-
ature sensor.
▶
Replace the return temperature sensor.
▶
Check the multiple plug and plug connection.
▶
Check the cable harness.
▶
Replace the flow temperature sensor.
▶
Check the cable harness.
▶
Check the flow temperature sensor cable.
▶
Replace the return temperature sensor.
▶
Check the cable harness.
▶
Check the return temperature sensor cable.
▶
Replace the cylinder temperature sensor.
▶
Check the cable harness.
▶
Check the connection cable and, if required, replace it.
▶
Replace the flow temperature sensor.
▶
Replace the return temperature sensor.
▶
Check the earth connection.
▶
Check the ignition cable, ignition plug and ignition electrode.
▶
Fill the heating installation. (→ Page 29)
▶
Replace the water pressure sensor.
▶
Check the cable harness.
47