MINNY
MINNY
MINNY
MINNY
42
42
42
42
25
25
25
25
FAIL
FAIL
FAIL
FAILURES
URES
URES
URES
This section provides a list of the most common burner and boiler failures.
Burner error code
Burner error code
Burner error code
Burner error code
We have already mentioned that the burner is equipped with a cut-out system, indicated by the
reset button light. It may cut out accidentally, and in this case the steady red light on this button
will come on. You may unblock it by pressing the button for approx. 1 second. When the burner is
blocked and the steady red light is on, visual failure diagnosis may be activated, in accordance with
the error code table. To enter visual failure diagnosis mode, hold down the reset button for at least
three seconds.
Error c
Error c
Error c
Error code table
ode table
ode table
ode table
Red flashing LED code
Red flashing LED code
Red flashing LED code
Red flashing LED code
“AL” on
“AL” on
“AL” on
“AL” on
term. 10
term. 10
term. 10
term. 10
Possible cause
Possible cause
Possible cause
Possible cause
Flashes 2 times
On
No flame established when ignition safety time
ends.
- Fuel valves defective or dirty.
- Flame detector defective or dirty
- Burner maladjustment, no fuel
- Ignition unit defective
Flashes 4 times
On
External light during burner ignition
Flashes 7 times
On
Excessive flame loss during functioning (limited
number of repetitions)
- Fuel valves defective or dirty
- Flame detector defective or dirty
- Burner maladjustment
Flashes 8 times
On
Supervision of fuel pre-heater time
Flashes 10 times
On
Cabling fault or internal failure, output contacts,
other failures
During the failure diagnosis time, the control outputs are disabled and the burner remains off. To
exit failure diagnosis and activate the burner again, reset the burner control. Hold down the reset
button for approx. 1 second (<3 s).
Boiler failures
Boiler failures
Boiler failures
Boiler failures
FAILURE
FAILURE
FAILURE
FAILURE
CAUSE
CAUSE
CAUSE
CAUSE
SOLUTION
SOLUTION
SOLUTION
SOLUTION
RADIATOR
DOES NOT
HEAT UP
- The pump is not turning
Unblock the pump
- Air in hydraulic circuit
Drain the installation and
the boiler (the automatic
air drain valve cap must
always be loose)
EXCESSIVE
NOISE
- Burner badly adjusted
Adjust it correctly
- Flue not correctly sealed
Eliminate any leaks
- Flame unstable
Examine the burner
- Flue not insulated
Suitably insulate it
