Faults / Solutions; Start-Up Problems; Operating Irregularities - Riello BG5 Instrucciones De Instalación, Uso Y Mantenimiento

6.

FAULTS / SOLUTIONS

Below is a list of some of the causes and possible solutions to a series of problems that might be encountered
and could cause a failure to start or irregular burner operation.
A fault usually makes the lock-out lamp light which is situated inside the reset button of the control box (3, fig. 1,
page 2). When lock out lamp lights the burner will attempt to light only after pushing the reset button. After this if
the burner functions correctly, the lock-out can be attributed to a temporary fault.
However, if lockout continues, you must determine the cause of the problem and take the action illustrated in the
solution column in the tables below.
6.1

START-UP PROBLEMS

FAULT
The burner doesn't
start when the limit
thermostat closes.
The burner goes in
safety lock-out before
or during the pre-purge
phase.
Burner runs normally
in the prepurge and ig-
nition cycle and locks
out after 5 seconds ca.
Burner starts with an
ignition delay.
Yellow flame.
6.2

OPERATING IRREGULARITIES

FAULT
Burner locks out dur-
ing operation.
3402
POSSIBLE CAUSES
Lack of electrical supply.
Bridge socket "P" missing or discon-
nected.
Start thermostats are faulty.
The connections in the control box are
wrongly inserted.
The flame detector sees strange light.
The flame detector is dirty.
The flame detector is defective
Flame moves away or fails.
The ignition electrodes are wrongly
positioned.
Air output is too high.
Nozzle dirty or worn.
Nozzle dirty or worn.
Defect in the air output.
Pump pressure is not correctly set.
Air suction inlet is clogged.
Obstruction in the exhaust circuit.
POSSIBLE CAUSES
Flame disappears 4 times.
Does not shut down.
Check presence of voltage in the
L1 - N clamps of the 7 pin plug.
Check the conditions of the fuses.
Check that safety thermostat is not
lock out.
Connect it up properly.
Replace them.
Check and connect completely all the
plugs.
Eliminate the light.
Clear it.
Change it.
Check pressure and output of the fuel.
Check air output.
Change nozzle.
Check the coil of solenoid valve.
Adjust them according to the
instructions of this manual.
Set the air output according to the
instructions of this manual.
Replace it.
Replace it.
Adjust the air output.
Verify the pressure and the output of the fu-
el and adjust them according to the instruc-
tions of this manual.
Clear it.
Clear it.
Clean or replace flame detector.
Replace dirty or deteriorated nozzle.
Check efficiency of flame detector.
Check efficiency of pressure regulator's pis-
ton.
Check efficiency of pump's on-off valve.
17 GB
SOLUTION
SOLUTION