REMKO AT 25 - Manual (Page 11)

11
Troubleshooting
– unit does not start.
– fan motor is running but burner will not be ignited.
– unit shut down without flaming formation.
– unit stops during operation.
(fault indicator lamp of the automatic burner relay lights up)
– smoke forming at the blow-out cone.
– unit can’t be switched off..
2 – 3 – 4 – 6 – 7 – 8 – 25
1 – 5 – 9 – 10 – 11 – 12 – 13 – 14 – 15 – 16 – 17
20 – 21 – 23 – 24 – 26
20
4 – 5 – 6 – 7 – 8 – 9 – 10 – 11 – 13 – 15 – 16 – 17
19 – 21 – 22 – 23 – 24 – 26
7 – 10 – 11 – 13 – 15 – 17 – 19 – 21 – 22 – 24
18 – 25
Cause: Trouble:
Cause: Remedy:
1. Air (bubbles) in the fuel system during starting procedure.
– Press fault clearance button of the automatic burner relay,
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 thermostat
socket.
4. Thermostat setting is too low. – Set thermostat higher than the room temperature.
5. Fault indicator lamp of the automatic burner relay lights up. – Unlock the automatic burner relay by pressing the reset button.
6. Faults in the automatic burner relay. – Replace automatic burner relay.
7. Fan 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.
8. Fuel pump is blocked. – Check resp. replace fuel pump.
9. Fuel tank is empty. – Fill fuel tank with clean fuel.
10. Fuel filter is blocked (dirty). – Clean fuel filter resp. replace if necessary.
11. Nozzle is blocked resp. wrong dimension (type/size). – Replace nozzle (take care of correct type and size!).
12. Wrong setting of ignition electrodes or damaged insulation. – Adjust correctly resp. replace it.
13. 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 – 13% and soot figure by Bacharach: 0 – 1).
14. Solenoid valve does not open.
– Check solenoid valve resp. replace if necessary.
(A „click“ should be heard during switching on/off)
– The safety temperature limiter has released / is defective.
15. Misadjusted pump pressure. – Set pump pressure by means of a pressure-gauge.
16. Pump clutch is defective. – Replace pump clutch.
17. Leakage in suction pipe or in fuel filter. – Check suction pipe and fuel filter, replace if necessary.
18. Solenoid valve does not close. – Pull off the fuel pipe from the main filter - the flame dies.
19. Air protecting grille is dirty. – Clean air protecting grille.
20. Disconnection by the safety temperature limiter (STB).
– Check air protecting grille, clean if necessary.
– Unlock safety temperature limiter (STB-Reset).
21. 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).
22. No adequate ventilation. – Open doors or windows.
23. Photo cell is dirty resp. defective. – Clean photo cell resp. replace if necessary.
24. Improper exhaust system. – See chapter “Exhaust system“.
25. Operating switch not functioning. – Check operating switch resp. replace if necessary.
– Clean the entire fuel system.
– Replace the damage tank heating. 26. Fuel with paraffin accumulation.
(Already occur starting from 5 °C see notes in chapter "Starting").
The tank heating is damage (very rarely).
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!