Truma Combi 6, Operating Instructions Manual

Page: 8 / 12

8
Fault Cause Rectification
Water supply
Water running out, cannot
fill boiler. – Safety/drain valve open. – Close safety/drain valve.
Cannot empty boiler, even
though safety/drain valve is
open. – Safety/drain valve draining
connection blocked.
– Check opening for soiling (slush, ice, leaves etc.) and
remove if necessary.
Water dripping from draining
connection of safety/drain
valve. – Water pressure too high. – Check pump pressure (max. 400 kPa). If connected to a
central water supply (rural or urban connection), a pressure
reducer must be used, which will prevent pressures higher
than 280 kPa entering the boiler.
When opening the cold
water tap, hot water comes
out. – Hot water flows back
through the cold water
supply.
– Fit a no-return valve in the cold water supply (refer to
installation instructions “Water connection”).
If these measures do not remove the failure, please contact the nearest Dometic Service.