Glow-worm Compact 24c-AS/1 Installation And Maintenance Instructions Manual page 49

Code/meaning
F.29
Ignition and check faults during
operation – flame has gone out
F.32
Fan fault
F.33
Excessive pressure losses from
the air/flue system
F.46
Cold water sensor short circuit
F.49
Fault: eBUS
F.61
Fault: Fuel control valve
F.62
Fault: Delayed shutdown of the
fuel control valve
F.63
Fault: EEPROM
F.64
Fault: Electronics/temperature
sensor
F.65
Electronics temperature fault
F.67
Fault: Electronics/flame
0020313973_01 Compact Installation and maintenance instructions
Possible cause
Reference pressure pipe not
connected
Plug on fan not plugged in or is
loose
Multiple plug loose/not plugged
in
Interruption in the cable harness
Fan blocked
Hall sensor defective
Electronics defective
Air/flue pipe blocked or partially
blocked
Fan defective
PCB defective
Temperature sensors defective
or not connected correctly
CO₂ content too low
Presence of a shunt pump in
the circuit
Excessive counter-pressure in
the air/flue pipe
Cold water sensor defective
Short circuit in the cable har-
ness
Short circuit in the eBUS con-
nection
eBUS overload
Different polarities at the eBUS
connection
Short circuit in the cable har-
ness for the gas valve assembly
Gas valve defective
PCB defective
Gas valve defective
PCB defective
Ignition electrode defective
PCB defective
Flow temperature sensor short
circuit
Return temperature sensor
short circuit
PCB defective
Electronics overheated
PCB defective
Implausible flame signal
PCB defective
Fault in the flue gas route
Measure
1. Check whether the reference pressure pipe is connected
between the gas valve assembly and the restrictor for the
reference pressure pipe.
2. Check whether the reference pressure pipe is connected
between the restrictor for the reference pressure pipe and
the distribution pipe.
▶
Check the plug on the fan and the plug connection.
▶
Check the multiple plug and plug connection.
▶
Check the cable harness.
▶
Check that the fan works correctly.
▶
Replace the Hall sensor.
▶
Check the PCB.
▶
Check the entire air/flue pipe.
▶
Check that the fan works correctly.
▶
Replace the PCB.
▶
Ensure that the electrical connection for the temperature
sensors has been established correctly, that they are not
corroded, and that they click into place correctly on the
connecting piece.
▶
Check the CO2 setting and, if required, increase the CO₂
content while taking the tolerances into consideration.
(→ Page 35)
▽
If the increase in the CO₂ content is not sufficient, set dia-
gnostics code d.85 to 10.
▶
This product is not compatible with a shunt pump in the install-
ation; remove the shunt pump and change the installation's ba-
sic diagram accordingly.
▶
If required, protect the product (wind deflector).
▶
Replace the cold water sensor.
▶
Check the cable harness.
▶
Check that the eBUS connection works correctly.
▶
Check that the eBUS connection works correctly.
▶
Check that the eBUS connection works correctly.
▶
Check the cable harness for the gas valve assembly.
▶
Replace the gas valve.
▶
Replace the PCB.
▶
Replace the gas valve.
▶
Replace the PCB.
▶
Replace the ignition electrode.
▶
Replace the PCB.
▶
Check that the flow temperature sensor works correctly.
▶
Check that the return temperature sensor works correctly.
▶
Replace the PCB.
▶
Check the external heat effects on the electronics.
▶
Replace the PCB.
▶
Check the flame signal.
▶
Replace the PCB.
▶
Check the entire flue gas route.
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