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20098687
36
GB
Faults - Probable causes - Solutions
Tab. N
10 blinks
The burner does not
come on and the lock-
out appears
Incorrect electrical wiring
Check
The burner goes into
lockout
Defective control box
Replace
Presence of electromagnetic disturbances in the
thermostat lines
Filter or eliminate
Presence of electromagnetic disturbance
Use the radio disturbance protec-
tion kit
No blink
The burner does not
start
No electricity supply
Close all switches - Check connec-
tions
A limiter or safety control device is open
Adjust or replace
Line fuse blocked
Replace
Defective control box
Replace
No gas supply
Open the manual valves between
contactor and train
Mains gas pressure insufficient
Contact your gas company
Minimum gas pressure switch fails to close
Adjust or replace
Servomotor fails to move to min. ignition position
Replace
The burner continues
to repeat the start-up
cycle, without lockout
The gas pressure in the gas mains lies very close
to the value to which the gas pressure switch has
been set.
The sudden drop in pressure after valve opening
causes temporary opening of the pressure switch
itself, the valve immediately closes and the burner
comes to a halt.
Pressure increases again, the pressure switch
closes again and the ignition cycle is repeated.
The sequence repeats endlessly.
Reduce the minimum gas pressure
switch intervention pressure. Re-
place the gas filter cartridge.
Ignition with pulsations Poorly adjusted head
Adjust
Ignition electrode incorrectly adjusted
Adjust it
Incorrectly adjusted fan air damper: too much air
Adjust
Output during ignition phase is too high
Reduce
Burner does not reach
maximum output
Remote control device TR fails to close
Adjust or replace
Defective control box
Replace
Defective servomotor
Replace
Burner stops with air
damper open
Defective servomotor
Replace
Signal
Problem
Possible cause
Recommended remedy
Summary of Contents for 3897304
Page 2: ...Translation of the original instructions ...
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