Operation Manual

18
7C
aravan - 02-08 - DET-0030-07EN
Troubleshooting
1
5
15.6.2 Alde heater/boiler
15.6.3 Truma boiler
15.6.4 Truma hot water source
Fault Cause Remedy
Heating does not ignite
with gas operation
Lack of gas Open regulator tap and
gas isolator tap
Connect a full gas bottle
Heating does not ignite at
240 V electrical operation
No 240 V power supply Switch on the 240 V au-
tomatic circuit breaker
Connect 240 V power
supply
Heating running, but no
heat at the convectors
Circulating pump does
not work
Switch on room thermo-
stat
Contact customer service
Heating and circulating
pump running, but no
heat at the convectors
Air in the heating system Bleed hot-water heater
Fault Cause Remedy
Red indicator lamp
"Fault" illuminates
Air in the gas pipe 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 ele-
ment
Contact customer service
Red and green indicator
lamps are not lit
Fuse is defective Replace fuse on the
transformer/rectifier
Fault Cause Remedy
The hot water source is
connected to power sup-
ply but does not heat
Operating switch is
switched off
Switch on operating
switch; the red indicator
lamp must be lit
Operating switch defec-
tive
Contact customer service
240 V automatic circuit
breaker is switched off
Switch on the 240 V au-
tomatic circuit breaker
240 V power supply dis-
connected
Connect 240 V power
supply
Heating coil in the hot
water source is defective
Contact customer service