Faults - Probable Causes - Solutions - Riello PRESS GV INCINERATOR Installation, Use And Maintenance Instructions

8

Faults - Probable causes - Solutions

Find a list of faults, causes and possible solutions for a set of fail-
ures that may occur and result in irregular burner operation or no
functioning at all.
If a burner malfunction is detected, first of all:
– check that the electrical wiring is adequately connected;
– check whether fuel is delivered;
– check that every adjustment parameter is adequately set.
Fault
The burner does not start
After pre-purge the burner
goes to lock-out and the
flame does not appear
The burner goes to lock-out
right after flame appear-
ance
Firing with pulsations or
flame detachment
Unever fuel supply
Interminally rusted pump
Noisy pump, instable pres-
sure
20098582
Faults - Probable causes - Solutions
Probable cause
- No electrical power supply . . . . . . . . . . . . . . . . . . . . Close all switches - Check fuses
- A limit or safety control device is open . . . . . . . . . . . Adjust or replace
- Control box lock-out . . . . . . . . . . . . . . . . . . . . . . . . . Reset control box
- Pump is jammed . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
- Control box fuses blown . . . . . . . . . . . . . . . . . . . . . . Replace
- Erroneous electrical connections . . . . . . . . . . . . . . . Check connections
- Defective control box . . . . . . . . . . . . . . . . . . . . . . . . Replace
- Defective electrical motor . . . . . . . . . . . . . . . . . . . . . Replace
- Defective capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
- Photocell short-circuit . . . . . . . . . . . . . . . . . . . . . . . . Replace photocell
- Light is entering or flame is simulated. . . . . . . . . . . . Eliminate light or replace control box
- No fuel in tank; water on tank bottom . . . . . . . . . . . . Top up fuel level or suck up water
- Inappropriate head and air damper adjustments . . . Consult manual
- Light solenoid valve fails to open . . . . . . . . . . . . . . . Check connections; replace coil
- Nozzle clogged, dirty, or deformed . . . . . . . . . . . . . . Replace
- Dirty or poorly adjusted firing electrodes. . . . . . . . . . Adjust or clean
- Grounded electrode due to broken insulation . . . . . . Replace
- High voltage cable defective or grounded. . . . . . . . . Replace
- High voltage cable deformed by high temperature . . Replace or protect
- Ignition transformer defective . . . . . . . . . . . . . . . . . . Replace
- Erroneous valve or transformer electrical connections. . . Check
- Control box defective . . . . . . . . . . . . . . . . . . . . . . . . Replace
- Pump unprimed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Prime pump
- Pump/motor coupling broken . . . . . . . . . . . . . . . . . . Replace
- Pump suction line connected to return line . . . . . . . . Correct connection
- Valves up-line from pump closed . . . . . . . . . . . . . . . Open
- Filters dirty: line - pump - nozzle . . . . . . . . . . . . . . . . Clean
- Incorrect motor rotation direction . . . . . . . . . . . . . . . Change motor electrical connections
- Delayed firing by electrodes or poorly adjusted head . . . Adjust
- Defective photocell or control box. . . . . . . . . . . . . . . Replace
- Dirty photocell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Clean
- Presence of electromagnetic disturbance. . . . . . . . . Use the radio disturbance protection kit
- Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . . . . Adjust according to manual
- Poorly adjusted firing electrodes. . . . . . . . . . . . . . . . Adjust according to manual
- Poorly adjusted fan air gate: too much air . . . . . . . . Adjust
- Nozzle unsuited for burner or boiler . . . . . . . . . . . . . See nozzle table; reduce 1st stage
- Defective nozzle . . . . . . . . . . . . . . . . . . . . . . . . . . . . Replace
- Inappropriate pump pressure . . . . . . . . . . . . . . . . . . Adjust according to manual
- Check if cause is in pump . . . . . . . . . . . . . . . . . . . . Feed burner from tank
or fuel supply system
- Water in tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Suck water from tank bottom with separate
pump
- Air has entered the suction line . . . . . . . . . . . . . . . . Tighten connectors
- Depression value too high (higher than 35 cm Hg):
- Tank/burner height difference too great . . . . . . . . . Feed burner with loop circuit
- Piping diameter too small . . . . . . . . . . . . . . . . . . . . Increase
- Suction filters clogged. . . . . . . . . . . . . . . . . . . . . . . Clean
- Suction valves closed . . . . . . . . . . . . . . . . . . . . . . . Open
- Paraffin solidified due to low temperature. . . . . . . . Add additive to light oil
In the event of a burner lockout, more than two
consecutive burner reset operations could cause
damage to the installation. On the third lockout,
contact the Aftersales Service.
WARNING
If further lockouts or burner faults occur, interven-
tions must only be made by qualified, authorised
personnel (as indicated in this manual, and in
compliance with the laws and regulations current-
DANGER
ly in force).
Suggested remedy
located near burner
30 GB