Appendix
44
Installation and maintenance instructions ecoTEC plus 0020261188_00
Message
Possible cause
Measure
F.27
Safety shutdown: Flame
simulation
Moisture on the PCB
▶
Check that the PCB works correctly.
Flame monitor defective
▶
Replace the flame monitor.
F.28
Ignition unsuccessful
Gas stopcock closed
▶
Open the gas stopcock.
Gas valve assembly defective
▶
Replace the gas valve assembly.
The gas pressure monitor has
been triggered
▶
Check the gas flow pressure.
Gas flow pressure too low
▶
Check the gas flow pressure.
The thermal isolator device has
been triggered
▶
Check the thermal isolator device.
Cable connections not plugged
in/loose
▶
Check the cable connections.
Ignition system defective
▶
Replace the ignition system.
PCB defective
▶
Replace the PCB.
Ionisation flow interrupted
▶
Check the monitoring electrodes.
Earthing defective
▶
Check the product's earthing.
Air in the gas supply
▶
Check the gas-air ratio.
Gas meter defective
▶
Replace the gas meter.
Gas supply is interrupted
▶
Check the gas supply.
Flue gas circulation is incorrect
▶
Check the air/flue system.
Ignition misfire
▶
Check that the ignition transformer works correctly.
F.29
Ignition and check faults
during operation
–
flame has
gone out
Gas valve assembly defective
▶
Replace the gas valve assembly.
Gas meter defective
▶
Replace the gas meter.
The gas pressure monitor has
been triggered
▶
Check the gas flow pressure.
Air in the gas supply
▶
Check the gas-air ratio.
Gas flow pressure too low
▶
Check the gas flow pressure.
The thermal isolator device has
been triggered
▶
Check the thermal isolator device.
Cable connections not plugged
in/loose
▶
Check the cable connections.
Ignition system defective
▶
Replace the ignition system.
Ionisation flow interrupted
▶
Check the monitoring electrodes.
Earthing defective
▶
Check the product's earthing.
PCB defective
▶
Replace the PCB.
F.32
Fan fault
Plug on fan not plugged in or is
loose
▶
Check the plug on the fan and the plug connection.
Multiple plug loose/not plugged
in
▶
Check the multiple plug and plug connection.
Interruption in the cable harness
▶
Check the cable harness.
Fan blocked
▶
Check that the fan works correctly.
Electronics defective
▶
Check the PCB.
F.33
Air pressure switch fault
Air/flue pipe blocked
▶
Check the entire air/flue pipe.
Defective air pressure switch
▶
Replace the air pressure switch.
Cable connections not plugged
in/loose
▶
Check the cable connections.
Fan defective
▶
Check that the fan works correctly.
PCB defective
▶
Replace the PCB.
F.49
Fault: eBUS
eBUS overload
▶
Check that the eBUS connection works correctly.
Short circuit in the eBUS con-
nection
▶
Check that the eBUS connection works correctly.
Different polarities at the eBUS
connection
▶
Check that the eBUS connection works correctly.
F.61
Gas safety valve drive
fault
Short circuit in the cable har-
ness
▶
Check the cable harness.
