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Faults
Faults
Heater Descriptions of possible fault causes and a troubleshooting guide can be found in the
operating instructions for the control panel that is installed.
Faults – Water supply Possible fault causes and a troubleshooting guide – See
“Troubleshooting guide (water supply)”.
Troubleshooting guide (water supply)
Water taking an extremely long time to heat up.
Water running away – boiler cannot be filled.
Boiler cannot be drained, even though the
safety/drain valve is open.
Water dripping/flowing from drainage socket of
safety/ drain valve.
After the heater has been switched off, the
FrostControl opens.
The FrostControl can no longer be closed.
Water container furred. / Descale water system
(see maintenance).
Safety/drain valve open. / Close safety/drain
valve.
Safety/drain valve drainage socket blocked. /
Check opening for soiling (slush, ice, leaves etc.)
and remove if necessary.
Water pressure too high. / Check pump pressure
(max. 2.8 bar). If the boiler is connected to a
central water supply (rural or urban connection),
a pressure reducer must be used that will
prevent pressures higher than 2.8 bar from
occurring
At temperatures of less than approx. 3 °C the
FrostControl opens automatically / Switch heater
on / Without heater operation the FrostControl
cannot be closed again until the temperature
reaches approx. 7 °C / Use heating element for
FrostControl.
Temperature at FrostControl less than approx. 7
°C / Switch heater on / Without heater operation
the FrostControl cannot be closed again until the
temperature reaches approx. 7 °C.
Rotary switch is not set to “Operation”. / Turn
the rotary switch of the FrostControl to
“Operation”, then press the pushbutton until it
engages.
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