herrmann HL 60 ALV.2, Technical Information, Assembly And Operating Instructions

Page: 36 / 80

36
EN
Diagnosis Cause Rectification
1. Oil firing unit
Error signal lamp is not on No voltage applied Check wiring
Boiler temperature controller incorrectly adjusted Adjust
Error signal lamp on Oil firing unit switched to malfunction Remedy malfunction
Oil firing unit defective Replace
Incorrect wiring of terminal socket Check wiring
Check oil pre-heater
Debug cause for malfunction by LED flashing code Remedy debugged malfunction according
according to chapter 2.6 (only for Siemens LMO 14) to error diagnosis point 2 ... 10
2. Motor
Motor does not start Defective release thermostat of oil pre-heater Replace oil pre-heater
Defective capacitor Replace capacitor
Stiff bearing Replace motor
Stiff oil pump Replace oil pump
Loud noise caused by running motor Motor defective Replace motor
Bearing defective Replace motor
Oil pump defective Replace oil pump
3. Ignition
No generation of ignition sparks Ignition unit defective Replace ignition unit
Ignition cable defective Replace ignition cable
Oil firing unit defective Replace oil firing unit
Insulator defective Replace ignition electrodes
Weak ignition spark Incorrect position of the ignition electrodes Position ignition electrodes
Ignition electrodes severely contaminated Clean ignition electrodes
4. Oil pump
Inconsistent oil pressure, loud noise from Intake pipe leaking (air entry) Check oil supply (see chapter 3.5)
operating oil pump, no oil pressure is built up Oil supply not according to the specifications Check oil supply (see chapter 3.5)
Intake pipe not de-aerated De-aerate intake pipe
Oil stop valve closed Open stop valve
Coupling defective Replace coupling
Oil pump filter contaminated Clean oil pump filter
Prefilter contaminated Clean/replace prefilter
Oil pump drive defective Replace oil pump
Paraffin sedimentation (+4 °C) Install at a frost-free place
Fuel oil viscous (-1 °C) Install at a frost-free place
5. Magnetic valve
Magnetic valve does not open Coil of the magnetic valve defective Replace coil of the magnetic valve
Oil firing unit defective Replace oil firing unit
6. Flame monitoring
Fault shut-down without flame generation Extraneous light (photoelectric current >5,5 μA) Remove extraneous light
Photo conductive cell defective Replace photo conductive cell
Fault shut-down with flame generation Photo conductive cell contaminated Clean photo conductive cell
Photoelectric current too weak (photoelectric Reset burner
current < 55 μA)
7. Nozzle
Inconsistent atomisation, high CO and Defective nozzle Replace nozzle
soot emissions Oil pressure not in compliance with specification Adjust oil pressure
Diaphragm valve defective Replace diaphragm valve
(only for burner versions E and F)
8. Baffle plate
Baffle plate / burner pipe very contaminated Incorrect burner adjustment Adjust burner according to chapter 3.8
and chapter 5 (basic adjustment table).
Inconsistent atomisation of the nozzle Replace nozzle and diaphragm valve, if
necessary (only for burner versions E and F)
Nozzle is dripping Replace diaphragm valve (only for burner
version E and F)
Incorrect nozzle type (spraying angle, Insert nozzle according to specification
spraying characteristics, installation size) (see chapter 4 and chapter 5)
9. Blower
Blower delivers not enough air Blower wheel contaminated Clean blower wheel
Blower wheel damaged Replace blower wheel
Loud noise during blower operation Blower wheel incorrectly positioned Correctly position blower wheel
Blower wheel damaged Replace blower wheel
Air flap incorrectly installed Correctly install air flap
8. Troubleshooting