14
Icons and indicators
Indicator
Status
Details
ON
room thermostat allows the boiler to heat
OFF
required temperature has been reached (boiler
doesn’t heat)
flickering
master appliance doesn’t allow to heat (MA entry)
ON
pump is active, a proper flow rate of medium has
been reached
flickering
lack of flow or insufficient flow rate of medium
(failure condition), heating elements are off,
red
heating on- boiler's CH mode
green
desired temperature has been reached
boiler co-operates with DHW cylinder (icon
in red)
temp. in CH system is lower than required but the
required room temperature has been reached, RT
entry is open, or room thermostat is blocked
OFF
OFF summer mode on
red
instantaneous water heater's performance
A
flickering
installation pressure is not sufficient (below 0,5 bar),
heating is blocked, pump is inactive
E
horizontal
dashes
parameter out of range or temp. sensor failure
K or L
flickering
respective temperature sensor failure
+D
ON
previev of outside temperature
