Riello RL 70 - Faults - Possible Causes - Solutions; Burner Start-up Faults

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34
GB
Faults - Possible causes - Solutions
9 Faults - Possible causes - Solutions
WARNING
In the event the burner stops, in order to prevent
any damage to the installation, do not unblock the
burner more than twice in a row. If the burner
locks out for a third time, contact the customer
service.
DANGER
In the event there are further lockouts or faults
with the burner, the maintenance interventions
must only be carried out by qualified, authorised
personnel, in accordance with the contents of this
manual and in compliance with the standards and
regulations of current laws.
SIGNAL FAULT POSSIBLE CAUSE SOLUTION
No blink The burner does not
start
1 - No electrical power supply................................... Close all switches - Check fuses
2 - A limit or safety control device is open ................ Adjust or replace
3 - Control box lock-out............................................. Reset control box (no sooner than 10 s after
the lockout)
4 - Pump is jammed .................................................. Replace
5 - Erroneous electrical connections......................... Check connections
6 - Defective control box ........................................... Replace
7 - Defective electrical motor .................................... Replace
8 - Defective motor capacitor ...................................
(RL 34 - RL 44 single-phase)
Replace it
2 pulses

After pre-purge and
the safety time, the
burner goes to lock-
out at the end of the
safety time
9 - No fuel in tank; water on tank bottom .................. Top up fuel level or suck up water
10 - Inappropriate head and air damper adjustments . Adjust, see pag. 17 and pag. 26
11 - Fuel solenoid valves fail to open .........................
(1st stage or safety)
Check connections; replace coil
12 - 1st nozzle clogged, dirty, or deformed................. Replace
13 - Dirty or poorly adjusted firing electrodes ............. Adjust or clean
14 - Grounded electrode due to broken insulation...... Replace
15 - High voltage cable defective or grounded ........... Replace
16 - High voltage cable deformed by high temperature Replace and protect
17 - Ignition transformer defective .............................. Replace
18 - Erroneous valves or transformer electrical .........
connections
Check
19 - Defective control box ........................................... Replace
20 - Pump unprimed ................................................... Prime pump and see “Pump unprimes”
21 - Pump/motor coupling broken............................... Replace
22 - Pump suction line connected to return line.......... Correct connection
23 - Valves up-line from pump closed......................... Open
24 - Filters dirty: line - pump - nozzle.......................... Clean
25 - Defective photocell or control box........................ Replace photocell or control box
26 - Photocell dirty ...................................................... Clean
27 - 1st stage operation of cylinder is faulty................ Change the cylinder
28 - Motor lockout (RL 44 three-phase) ...................... Reset thermal relay
29 - Defective motor command remote control device
(RL 44 three-phase)
Substitute it
30 - Electrical power supply two-phase .....................
(RL 44 three-phase) thermal cut-out trips when
third phases are re-connected
Reset thermal relay
31 - Incorrect motor rotation direction ......................... Change motor electrical connections
4 pulses

The burner starts and
then goes into lockout
32 - Photocell short-circuit .......................................... Replace photocell
33 - Light is entering or flame is simulated ................. Eliminate light or replace control box
7 pulses

Flame detachment 34 - Poorly adjusted head ........................................... Adjust, see pag. 16,
35 - Poorly adjusted or dirty firing electrodes.............. Adjust, see Fig. 14 on page 18
36 - Poorly adjusted fan air gate: too much air ........... Adjust
37 - 1st nozzle is too big (pulsation) ........................... Reduce 1st nozzle delivery
38 - 1st nozzle is too small (flame detachment).......... Increase 1st nozzle delivery
39 - 1st nozzle dirty, or deformed ............................... Replace
40 - Pump pressure not suitable ................................. Adjust it: between 10 - 14 bar
41 - 1st stage nozzle unsuited to burner or boiler....... See Nozzle Table, pag. 17; reduce 1st stage
nozzle
42 - Defective 1st stage nozzle................................... Replace