Table des Matières
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Malfunctions – Trouble-shooting
Fault
1. Indicator lamp
Does not light up
Light up
2. Motor
Does not start
Runs with loud noise
3. Ignition
No ignition spark
Weak ignition spark
4. Oil pump
Fluctuating oil pressure
Runs with loud noise
No oil pressure
Does not pump oil
5. Solenoid valve
Does not open
6. Automatic oil firing unit
Switches to malfunction
without flame
with flame
7. Nozzle
Sprays irregularly
8. Baffle plate
Very dirty
9. Blower wheel
Delivers too little air
Runs with loud noise
Cause
No voltage
Controller not properly adjusted
Automatic oil firing unit set to malfunction
Automatic oil firing unit defective
Connection terminal not tightly connected
Plug at oil preheater not tight
Release thermostat for oil preheater defective
Capacitor defective
Bearings are frozen/jammed
Oil pump is frozen/jammed
Motor defective
Bearings defective
Oil pump defective
Ignition transformer defective
Ignition cable scorched
Automatic oil firing unit defective
Insulator cracked
Ignition electrode setting incorrect
Ignition electrode contaminated
Leaks in suction line
Dimensioning of suction line not favorable
Too little oil
Suction line not vented
Oil shut-off valve closed
Coupling defective
Leaks in suction line
Oil pump filter dirty
Prefilter dirty
Paraffin deposits (+4°C)
Heating oil no longer flowable (-1°C)
Coil defective
Automatic oil firing unit defective
Outside light (> 5,5 µA)
Photo-resistor defective
Photo-resistor dirty
Photo-resistor too weak (< 55 µA)
Nozzle defective
Oil pressure too low
Incorrectly adjustet
Nozzle spray irregularly
Nozzle too drips
Nozzle too large
Nozzle too small
Spraying angle of the nozzle incorrect
Changed combustion air volume
Blower wheel contaminated
Air flap jammed
Air flap incorrectly installed
Blower wheel damaged
GB
25
Remedy
Check
Adjust
Reset
Replace
Tighten screws
Plug-in properly
Replace
Replace
Replace motor
Replace
Replace
Replace motor
Replace
Replace
Replace
Replace
Replace
Adjust
Clean
Seal properly
Change according to table
Check suction line
Vent
Open
Replace
Seal properly
Clean
Clean/replace
Install cold-insulation
Install cold-insulation
Replace
Replace
Eliminate outside light
Replace
Clean
Re-adjust burner
Replace
Set higher
Re-adjust burner
Replace
Check oil line
Replace
Replace
Replace nozzle
Re-adjust burner
Clean
Replace
Install correctly
Replace
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