Troubleshooting - elco ES08.5200 G/F-VT Betriebsanleitung

Troubleshooting

Check the following if failure
occurs:
• The presence of an electrical voltage
(power and control).
• The fuel supply (pressure and valve
opening).
• The regulation components.
• The position of the switches on the
control panel TC.
Symbols
Burner stopped in service position
nothing happens.
Gas pressure normal.
With leak testing device.
Burner shut down
in service position.
P
In "P" position.
Motor not working. Protection device open Faulty air pressure
Motor not working.
Protection device closed.
Motor running.
in service position.
1
In "1" position.
No ignition spark
Solenoid valves
do not open.
Combustion head
Flame appears, but is
unstable or goes out (insufficient cell
current).
Burner ventilation running continuously
without flame.
I
In "I" position.
on
or
On
Other incidents
Sudden lockout
at any time, not
indicated by any symbol.
Control and safety unit recycle without
safety lockout
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If the problem persists:
On the control and safety unit, check the
various program symbols described.
Safety components must not be
repaired but replaced by identical items.
Only use manufacturer spare parts.
Fault
Insufficient gas pressure.
Gas pressure switch set wrongly or
defective.
Air pressure switch closed (contact
welded).
Leak testing device shutdown.
Leak testing device not switched on.
Parasitic flame on thermostatic cut-off.
Thermal relay tripped.
Protection device defective.
Faulty wiring between protection device
and motor
Motor defective.
Air pressure switch wrongly set or
defective.
Faulty flame monitoring circuit
Ignition electrode(s) short circuit.
Ignition cable(s) damaged.
Faulty ignition transformer
Control and safety unit
Break in electrical connections.
Coil(s) short-circuited.
Mechanical jamming in valves or
proportional regulator
Combustion head wrongly set
Air flap too open and/or gas flow too high
Servomotor defective.
Air flap mechanically jammed
Coupling mechanically defective.
Premature flame signal.
Old cell
Gas pressure switch set wrongly or
defective.
05/2009 - Art. Nr. 4200 1017 4400A
manuals search engine
Note
After any intervention:
• Check the combustion, and that the
various circuits are leak tight.
• Perform safety checks.
• Record results in the relevant
documents.
Cause
Adjust distribution pressure
Clean filter.
Set or replace gas pressure switch.
Replace air pressure switch.
Unscrew or change valve.
Check, change fuse.
Check gas valves for leaks.
Fit a postventilation device
Replace air pressure switch.
Reset, adjust or replace thermal relay.
Replace protection device.
Check wiring
Replace motor
Adjust or replace the air pressure switch.
Check pressure pipes.
Check cell
Change control and safety unit
Adjust or replace electrodes
Replace ignition cables
Replace ignition transformer.
Change control unit
Check wiring between unit, servomotor
and valve
Replace coil(s).
Replace the valve.
Adjust combustion head
Adjust air flap and/or gas flow.
Adjust or change servomotor
Unblock air flap
Check or replace coupling.
Change control and safety unit
Replace the cell.
Adjust or replace the gas pressure switch.
Corrective action