REMKO DZ 18 HD - Manual (Page 13)

13
Troubleshooting
– unit does not start.
– motor is running but burner will not be ignited.
– unit stops during operation.
fault LED of the control IC (unit backside) lights up.
– smoke forming at the blow-out cone.
– flame leakage at the blow-out side (front).
– fuel consumption is too high.
– unit can’t be switched off. 2 – 3 – 4 – 5 – 6 – 7
1 – 8 – 9 –10 – 11 – 12 – 13 –14 –15 – 16 – 18 –19 – 21 – 22
5 – 11 – 12 – 14 – 15 – 16 – 18 – 19 – 20 – 21 – 22
10 – 12 – 14 – 16 – 18 – 19 – 20
10 – 12 – 14 – 16 – 18 – 19 – 20
10 – 14
5 – 17
Cause: Trouble:
Cause: Remedy
1. Air (bubbles) in the fuel system during starting procedure.
– Press operating switch,
repeat if necessary (max. 3 x).
2. No electrical connection. – Check mains, mains plug and current.
3. No (bridge circuit-/thermostat-) plug in the thermostat socket.
– Connect bridge circuit plug resp. thermostat plug with the thermo-
stat socket.
4. Thermostat setting is too low. – Set thermostat higher than the room temperature.
5. Faults in the control IC. – Replace control IC.
6. Motor is overcharged.
(Fan blows irregularly or is blocked).
– Let motor cool down.
– Check slight run of fuel pump.
– Check motor on electrical and mechanical function.
7. Fuel pump is blocked. – Check resp. replace fuel pump.
8. Fuel tank is empty. – Fill fuel tank with clean fuel.
9. Fuel filter is blocked (dirty). – Clean fuel filter resp. replace if necessary.
10. Nozzle is blocked resp. wrong dimension (type/size). – Replace nozzle (take care of correct type and size!).
11. Wrong setting of ignition electrodes or damaged insulation. – Adjust correctly resp. replace it.
12. Air flow plate of the burner head is misadjusted resp. dirty.
– Adjust correctly by means of CO
2
–indicator and soot pump.
(CO
2
: 10 – 12% and soot figure by Bacharach: 0 – 1).
13. Solenoid valve does not open.
– Check solenoid valve (a „click“ should be heard during switching
on/off) otherwise replace it.
14. Misadjusted pump pressure. – Set pump pressure by means of a pressure-gauge.
15. Pump clutch is defect. – Replace pump clutch.
16. Leakage in suction pipe or in fuel filter. – Check suction pipe and fuel filter, replace if necessary.
17. Solenoid valve does not close. – Pull off the fuel pipe from the main filter - the flame dies.
18. Air protecting grille is dirty. – Clean air protecting grille.
19. Air (bubbles) in the fuel system.
– Restart the unit in order to discharge the air through the nozzle;
this procedure can be repeated up to max. 3 times.
20. No adequate ventilation. – Open doors or windows
21. Photo cell is dirty/defective. – Clean resp. replace photo cell.
22. Fuel with paraffin accumulation.
(Already occur starting from 5 °C see notes in chapter "Starting").
The tank heating is damaged (very rarely). – Clean the entire fuel system.
– Replace the damage tank heating.
The mains plug has been taken out of the mains socket before carrying out any work regarding the unit.
Setting and maintenance is to be carried out only by authorised experts!