Troubleshooting Instructions - Truma Boiler Manual

Troubleshooting instructions

(Combi Gas heater)
Error code Cause
#17 • Summer mode with empty water
container
• Warm air outlet blocked
• Circulated air intake blocked
#18 • Gas pressure regulator frozen
• Too much butane in the gas
cylinder
#21 • Room temperature sensor or
cable faulty
#24 • Potential under-voltage battery
voltage too low <10.4V
#29 • Heating element for FrostControl
has a short circuit
#41 • Electronics are blocked
#42 • Window above the cowl is open
(window switch)
#43 • Over-voltage > 16.4V
#44 • Under-voltage battery voltage too
low < 10.0V
#45 • No 230V operating voltage
• Faulty 230V fuse
• Overheating protection has
triggered
#112 • Gas cylinder or quick-acting valve
in the gas line closed
#212 • Combustion air intake or exhaust
outlet closed
#255 • No connection between the heater
and the control panel
• Control panel cable faulty
TRU MA COM BI BO ILE R FA U LT FIN DIN G
If these steps do not rectify the malfunction,
please contact the Truma Service.
Remedy
• Switch device off and allow to cool.
Fill boiler with water
• Check each of the outlet openings
• Remove the blockage from the
circulated air intake
• Use the regulator heating (EisEx)
• Use propane (Butane is unsuitable
for heating, especially at tempera-
o
tures below 10 C
• Please contact the Truma Service
• Charge battery
• Disconnect the heating element
plug on the electronic control unit.
Replace heating element
• Please contact the Truma Service
• Close the window
• Check the battery voltage and volt-
age sources eg. the charger
• Charge battery. Replace any
old batteries
• Reconnect the operating
voltage 230V
• Replace the 230V fuse
• Reset the overheating protection.
Allow the heating to cool down,
remove the connection cover and
press the reset button
• Check the gas supply and open
the valves
• Check the openings for soiling
(snow, ice, leaves etc) and remove
• Please contact the Truma Service
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