15
6.12 - TROUBLESHOOTING
Probe alarm signal:
In case of failure or disconnection of one or more temper-
ature probes, the control unit signals that they are missing
indicating the number of the missing probe by a short
beep of the buzzer. To eliminate the problem, check the
connection of the probe and/or replace it.
Maximum boiler temperature alarm signal:
If the boiler reaches the maximum operating temperature,
the alarm sounds automatically and the display flashes
indicating the safety status; at the same time the control
unit activates all enabled pumps, according to the type of
system controlled, in order to disperse excess heat. To
silence the alarm, press the Buzzer silencing key
.
Boiler door open alarm signal:
When the wood loading door opens, the bypass connected
mechanically opens allowing the fan to directly extract the
flue gas at maximum speed through the bypass.
After the door has closed, the system continues working
automatically following the panel board
logic.
A microswitch is connected to the bypass opening system
which is activated when the door opens; the controller will
begin to emit a series of short beeps at regular intervals
and the message “BOILER DOOR OPEN” will appear at
the bottom of the display.
• The fan will run at full speed to extract the flue gas
through the bypass.
• After the door has closed, the system continues working
automatically following the panel board logic.
Just close the door to silence the alarm.
Remember that keeping the door open for long periods
“during reloading”, could deform the flue gas extraction
impeller.
Faulty probe temperature measurement:
Should one or more probes supply faulty temperature
measurements, try to replace it/them; also check to
ensure no voltage reaches the input of a possible chron-
othermostat.
In case of faulty readings, try to disconnect the wires from
the chronothermostat input.
Safety device trip:
When the set boiler water temperature has been reached
(PARAMETER 0), the boiler fan stops.
If this temperature is exceeded and the temperature set in
PARAMETER 2 is reached, an acoustic alarm signal will
be triggered and all pumps will be enabled to run.
When the water temperature of the system drops, boiler
operation will be restored automatically; if on the other
hand the temperature increases beyond the safety ther-
mostat calibration value (100°C), standard operating con-
ditions must be restored manually by resetting the safety
thermostat: the key is on the left side of the panel board.
Power outage:
Safety is assured by the thermal discharge valve (the
mounting of which is
mandatory
for all solid fuel fired
appliance) which disposes of excess inertia.
