Faults / Solutions; 10.1 Burner Start-Up Difficulties; 10.2 Operating Faults - Riello G30 MRBLU CF Installation, Use And Maintenance Instructions

10

Faults / Solutions

Here below you can find some causes and the possible solutions for some problems that could cause a failure to start or a bad working
of the burner.
A fault usually makes the lockout lamp light come on which is situated inside the reset button of the control box 2) (Fig. 3).
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 lockout can be attributed to a temporary fault.
If however the lock out continues, the cause must be determined and the remedies shown in the following table adopted.

10.1 Burner start-up difficulties

FAULTS
The burner does not start
when the limit thermostat
closes.
The burner goes into
lockout mode before or
during the pre-purging.
Burner runs normally in
the prepurge and ignition
cycle and locks out after 5
seconds ca.
Burner starts with an igni-
tion delay.

10.2 Operating faults

FAULT
The burner goes into
lockout mode during
operation.
Faults / Solutions
POSSIBLE CAUSE
Lack of electrical supply.
Heater or enabling thermostats are faulty.
The connections in the control box are wrongly
inserted.
The flame detector sees extraneous light.
The flame detector is dirty.
The flame detector is faulty.
Flame moves away or fails.
The ignition electrodes are wrongly positioned.
Air output is too high.
Nozzle dirty or worn.
POSSIBLE CAUSE
Flame disappears four times.
Failure to go off.
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.
Replace them.
Check and connect completely all the
plugs.
Eliminate the light.
Clear it.
Replace 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.
Clean or replace the flame detector.
Replace the dirty or deteriorated nozzle.
Check the efficiency of the flame detector.
Check the efficiency of the piston on the pressure
adjuster.
Check the efficiency of the pump cut off valve.
27
GB
SOLUTION
SOLUTION
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