Faults - Possible Causes - Solutions - Riello DR 32 SE FGR Installation, Use And Maintenance Instructions

7

Faults - Possible causes - Solutions

If faults arise in ignition or operations, the burner performs a
"safety stop", which is signalled by the red burner lockout LED.
The display visualises alternately the lockout code and the rela-
tive diagnostic. To reset the start-up conditions, refer to the "Re-
set procedure" indicated in the control box manual supplied.
When the burner starts again, the red LED goes out and the con-
trol box is reset.
GAS OPERATION
Problem
The burner does not start
The burner does not come
on and the lock-out appears
The burner turns on and
then stops in lockout mode
The burner turns on and
then remains in lockout
mode
Once the pre-purging and
the safety time has elapsed
the burner goes into lockout
without the flame appearing
Faults - Possible causes - Solutions
Possible cause
• No electrical power supply..........................
• A limiter or safety control device is open.....
• Control box lockout.....................................
• Control box fuse broken..............................
• Incorrect electrical wiring............................
• Defective control box..................................
• No gas supply.............................................
• Mains gas pressure insufficient..................
• Minimum gas pressure switch fails to close
• Air pressure switch in operating position.....
• Flame simulation........................................
Air pressure switch does not switch owing to
lack of air pressure:
• Air pressure switch is badly adjusted...........
• Pressure socket tube of the pressure switch
clogged............................................
• Head badly adjusted...................................
• Defective flame detection circuit .................
• The VR solenoid lets too little gas through...
• The VR or VS solenoid valve does not open
• Gas pressure too low..................................
• The burner's pilot is not functioning.............
• Firing transformer defective........................
• Incorrect valve or
connections................................................
• Defective control box..................................
• A closed valve up-line from the gas train.....
• Air in pipework............................................
In the event the burner stops, in order to prevent
any damage to the installation, do not unblock the
burner more than twice in a row. If the burner
locks out for a third time, contact the customer
WARNING
service.
In the event there are further lockouts or faults
with the burner, the maintenance interventions
must only be carried out by qualified, authorised
personnel, in accordance with the contents of this
DANGER
manual and in compliance with the standards and
regulations of current laws.
Close all switches - Check connections
Adjust or replace
Unlock control box
Replace it
Check connections
Replace
Open the manual valves between meter and
train
Contact your GAS COMPANY
Adjust or replace
Adjust or replace
Replace the control box
Adjust it or replace it
Clean it
Adjust it properly
Replace control box
Increase it
Replace the coil or the rectifier panel
Increase pressure at regulator
Check
Replace it
firing transformer
Redo them
Replace
Open it
Bleed air
31 GB
Recommended remedy
20188797