Operation Manual

Troubleshooting
16
180 Caravan - 14-09 - EN
16.6.3 Truma boiler
16.6.4 Truma water heater
Fault Cause Remedy
Gas operation
Red indicator lamp "Fault"
illuminates
Air in the gas pipe system Switch off and on again.
After two futile ignition at-
tempts, wait for
10 minutes before trying
again
Lack of gas Open regulator tap and
gas isolator tap
Connect a full gas bottle
Defect of a safety element Contact customer service
Green indicator lamp be-
hind knob is not lit
Fuse of the boiler is defec-
tive
Replace fuse
Fuse in the electronic con-
trol unit has been trig-
gered
Contact customer service
Red and green indicator
lamps are not lit
No power supply Connect the power supply
Fuse of the boiler is defec-
tive
Replace fuse
Electrical operation
Boiler is connected to pow-
er supply but is not heated
Operating switch is
switched off
Switch on the operating
switch, the indicator lamp
on the switch must light
up
Operating switch defective Contact customer service
240 V automatic circuit
breaker switched off
Switch on 240 V automatic
circuit breaker
240 V power supply dis-
connected
Connect 240 V power sup-
ply
Overtemperature fuse has
triggered
Switch off boiler and
switch on after approx. 5
minutes
Heating coil of the boiler is
defective
Contact customer service
Fault Cause Remedy
The water heater is con-
nected to power supply
but does not heat
Operating switch is
switched off
Switch on operating
switch; the red indicator
lamp must be lit
Operating switch defective Contact customer service
240 V automatic circuit
breaker switched off
Switch on 240 V automatic
circuit breaker
240 V power supply dis-
connected
Connect 240 V power sup-
ply
Fuse is defective Replace fuse
Heating coil in the water
heater is defective
Contact customer service