Fault - Probable Cause - Suggested Remedy - Riello GAS 3 Manuel D'entretien

FAULT - PROBABLE CAUSE - SUGGESTED REMEDY

Signal
2 blinks Once the pre-purging
phase and safety time
have passed, the burner
goes into lockout without
the appearance of the
flame
3 blinks The burner does not
switch on, and the lockout
appears
The burner switches on,
but then stops in lockout
Lockout during pre-purg-
ing phase
4 pulses The burner switches on,
but then stops in lockout
Lockout when burner
stops
7 blinks The burner goes into
lockout immediately fol-
lowing the appearance of
the flame
Burner goes into lockout
during operation
10 blinks The burner does not
switch on, and the lockout
appears
The burner goes into
lockout
Problem
1 - The operation solenoid lets little gas through . . . Increase
2 - One of the two solenoid valves does not open. . Replace
3 - Gas pressure too low . . . . . . . . . . . . . . . . . . . . . Increase pressure at governor
4 - Ignition electrode incorrectly adjusted. . . . . . . . . Adjust, see fig. (C) page 16
5 - Electrode grounded due to broken insulation . . . Replace
6 - High voltage cable defective . . . . . . . . . . . . . . . . Replace
7 - High voltage cable deformed by high temperature Replace and protect
8 - Ignition transformer defective . . . . . . . . . . . . . . . Replace
9 - Incorrect valve or transformer electrical wiring . . Check
10 - Defective control box. . . . . . . . . . . . . . . . . . . . . . Replace
11 - A closed valve upline the gas train . . . . . . . . . . . Open
12 - Air in pipework. . . . . . . . . . . . . . . . . . . . . . . . . . . Bleed air
13 - Gas valves unconnected or with interrupted coil. Check connections or replace coil
14 - Air pressure switch in operating position. . . . . . . Adjust or replace
- Air pressure switch inoperative due to insufficient
air pressure:
15 - Air pressure switch incorrectly adjusted.. . . . . . . Adjust or replace
16 - Pressure switch pressure test point pipe blocked Clean
17 - Poorly adjusted head . . . . . . . . . . . . . . . . . . . . . Adjust
18 - High pressure in the furnace . . . . . . . . . . . . . . . . Connect air pressure switch to fan
19 - Defective motor control contactor . . . . . . . . . . . .
(only three-phase version)
20 - Defective electrical motor . . . . . . . . . . . . . . . . . . Replace
21 - Motor lockout (defective electrical motor) . . . . . . Replace
22 - Flame simulation . . . . . . . . . . . . . . . . . . . . . . . . . Replace the control box
23 - Permanent flame in the combustion head or . . .
flame simulation
24 - The operation solenoid lets little gas through . . . Increase
25 - Ionisation probe incorrectly adjusted. . . . . . . . . . Adjust, see fig. (C) page 16
26 - Insufficient ionisation (less than 5 A). . . . . . . . . . Check probe position
27 - Earth probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Withdraw or replace cable
28 - Burner poorly grounded . . . . . . . . . . . . . . . . . . . Check grounding
29 - Phase and neutral connections inverted . . . . . . . Invert them
30 - Defective flame detection circuit . . . . . . . . . . . . . Replace the control box
31 - Probe or ionisation cable grounded . . . . . . . . . . Replace worn parts
32 - Incorrect electrical wiring. . . . . . . . . . . . . . . . . . . Check
33 - Defective control box. . . . . . . . . . . . . . . . . . . . . . Replace
34 - Presence of electromagnetic disturbances in . . .
the thermostat lines
35 - Presence of electromagnetic disturbance . . . . . .
Possible cause
44
Recommended remedy
suction line
Replace
Eliminate persistence of flame or
replace control box
Filter or eliminate
Use the radio disturbance protection
kit
GB