Manual

Malfunction
Heating (burner)
Fuelpump/bloweroperates,but
burnerdoesnotheat.

Fuelpump/blowerdoesnotoperate.
-Pumpmakesloudnoises
Fueloperatingpress.isnotreached

Smokeduringoperation.
Smokeafterswitchingoff.
Solenoid valve on the fuel pump
does not open
Test: Pressureswitch(black)
Bridgeinterminalboxbetween
terminal3+4
Test: Connectsolenoidvalve230V
externally.
Oilpressureonthefuelpumpis
toolow/toohigh.
Ignition does not function.
Ventilator does not operate.
Leakage
Gundrips.Highpressurehosedrips.
Manometershowspressure
butnowatercomesout.
Sucking detergent
Detergentisnotsucked.
Cause of malfunction / remedy
Setwatertemperatureisreached.Increase
temperatureonthermostatwithrotarycontrol
switch.Opengun,untiltemperaturedrops.Fuel
tankisempty.Fuelfilterisdirty.Fuelnozzleisdirty.
Couplingbetweenburnermotorandfuelpumpis
defect.Blower/fuelpumpmotorisdefect.Check
electricalequipment.Checkfuseinelectricbox.
Waterinfueltank.
Dirtorrustinthefuelpump.Cleantank.
Replacefuelpump.
Fuelisdirty.Nozzleornozzlestockleaks.
Waterintank.
Checkpressureswitch(black).Solenoidvalveis
defectordirty.Cleanfilter,cleansupplyline,
clean
fuelpump.Settingiswrong.Cleanfuelnozzle,
orreplaceit.

Checkignitioncable.Charringofplug-incontacts
bymoisture.Cableisbroken.Checkignition
transformerconnections.Transformerisdefect
Ignitionelectrodehasbeenfalselysetorburntup.
Blower-/fuelpumpmotorisdefect.Checkelectri-
calequipment.Checkfuseinterminalbox.
Couplingbetweenburnermotorandfuelpumpis
defect.
Cleannozzle.Replaceseals.
ReplaceO-ringunderscrewedconnection.
Cleannozzle.
Pumpsucksair.Checkhoseclips.
Test: Connectwaterlinetothepump.
Waterinlet:2-8barpre-pressure.Nowater
mustcomefromthedetergenthose.
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Troubleshooting