Troubleshooting Guide - Truma BG 10 Operating Instructions Manual

Troubleshooting guide

Fault
Gas mode
Boiler does not operate after
switching on.
After switching on, boiler does
not operate and red LED comes
on after about 30 sec.
After a long period of operation,
boiler switches to "Fault" and
red LED comes on.
Electrical mode (BGE 10)
Boiler does not operate
after switching on.
Water supply
Water dripping from drain
valve.
Warm water coming out of cold
water tap.
If these actions do not remedy the problem, please contact Truma Service.
8
Cause
– No 12 V
power supply.
– Window open.
– Cowl cover is fitted.
– No gas supply.
– Incorrect gas pressure.
– Air in gas supply.
– Overtemperature sensor
has activated.
– No 230 V power supply.
– Overtemperature sensor
has activated.
– Heats up too slowly
with switch set to 850 W.
– Water pressure too high.
– Hot water flowing
back into cold water
supply.
Remedy
– Check the battery voltage (min. operating voltage 10.5 V ).
– Check boiler fuse
(see Maintenance, "Fuses").
– Close window above cowl.
– Remove cowl cover and/or check for soiling and remove
if necessary.
– Check gas valves and cylinder.
– Check gas valves and cylinder.
– To clear the fault (and bleed off air), switch the appliance
off, wait for 5 minutes and switch it on again.
– Check the water content, topping up if necessary (close
drain valve).
– To clear the fault, switch the appliance off, wait for 5 min-
utes and switch it on again.
– Connect vehicle to the local central power supply and/or
check residual current protective device.
– Check the water content, topping up if necessary (close
drain valve).
– The electric heating element is fitted with an overtemper-
ature sensor. In the event of a fault, switch off at the con-
trol panel, wait for 10 minutes, then switch on again.
– Please contact Truma Service.
– Check water pressure (max. 2.8 bar). When connecting to
a central water supply a pressure reducer must be used.
– Fit a non-return valve to the cold water supply
(see installation instructions, "Water connection").