Troubleshooting in marathon
®
gas and dual fuel burners
dreizler A 3001 E - 18.12.2015 | A 2012 - 1.09 | EN - 23.10.2009
158
Ignition and ionisation cable are
defective.
Check ignition and ionisation cable
for damage and replace where
required.
Burner management system is
defective.
Check burner management system
and replace where required.
Ignition transformers are defec-
tive.
Check ignition transformers and
replace where required.
Error
Possible cause
Trouble shooting
Burner switches off after error-
free start-up or successful
restart.
Gas/oil pressure switch MIN is
defective.
Replace gas/oil pressure switch.
Gas/oil pressure switch MIN is set
too high.
Reduce setpoint setting for gas/oil
pressure switch.
Gas pressure decreases too much
during start-up.
Clean dirty gas filter. Replace
defective gas pressure switch.
Water is in the gas line. Check gas
supply pressure and notify gas sup-
ply company where applicable.
Error
Possible cause
Trouble shooting
Burner start-up takes place as
scheduled, flames ignite and
go out again.
Burner outputs error.
Burner management system is
defective.
Check function of burner manage-
ment system.
The display code of the burner
management system points to addi-
tional error information.
The flame is insufficiently moni-
tored.
The electrode or sensor requires
readjustment.
Check ionisation current.
The ionisation electrode is
grounded.
Correct the electrode seating and
observe correct distance require-
ment.
The Ionisation cable is defective.
Replace cable.
Check connection of ionisation
plug.
No ground connection on burner.
Connect ground cable.
Error
Possible cause
Trouble shooting
The servomotor does not drive
the damper controls.
No voltage supply to the servomo-
tor.
Check current on servomotor.
Check damper on servomotor for
free run.
Relock the servomotor after check-
ing.
Check servomotor lock.
Lock servomotor.
Check locking pin for servomotor. Lock the locking pin where
required.
Error
Possible cause
Trouble shooting
