Water Supply - Truma Combi D 6 Gebrauchsanweisung

Fault
Yellow LED flashes 8 x.

Water supply

After the heater is switched
off, the drain valve opens
(FrostControl).
The drain valve (FrostControl)
can no longer be closed.
Water flows intermittently
from the FrostControl drain
muff.
If these measures do not remove the failure, please contact the Truma Service Centre.
16
Cause
– Heating element
for FrostControl has
short-circuited.
– Temperature at drain valve
less than approx. 3 °C.
– Temperature at drain valve
is below approximately
7 °C.
– Rotary switch is not at
"Operation".
– Water pressure too high.
Rectification
– Disconnect the heating element plug on the electronic
control unit. Exchange the heating element.
– Switch the heater on. If the temperature is below approxi-
mately 3 °C, the drain valve will open automatically! If the
heater is not in operation, the drain valve can be reclosed
only when the temperature is approximately 7 °C or higher!
– Use heating element for FrostControl.
– Switch the heater on. If the heater is not in operation, the
drain valve can be reclosed only when the temperature is
approximately 7 °C or higher!
– Turn the drain valve's rotary switch to "Operation", then
press the push button until it engages.
– Check pump pressure (max. 2.8 bar). If connected to a
central water supply (rural or urban connection), a pressure
reducer must be used, which will prevent pressures higher
than 2.8 bar entering the boiler.