Faults / Solutions - Riello 40 GS10 Instrucciones Para La Instalación, Uso Y Mantenimiento

Quemador de gas de aire soplado
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6.

FAULTS / SOLUTIONS

Here below you can find some causes and the possible solutions for some problems that could cause a fail-
ure to start or a bad working of the burner. A fault usually makes the lock-out lamp light which is situated
inside the reset button of the control box (9, fig. 1, page 1).
When lock out lamp lights the burner will attempt to light only after pushing the reset button. After this if the
burner functions correctly, the lock-out can be attributed to a temporary fault.
If however the lock out continues the cause must be determined and the solution found.
BURNER STARTING DIFFICULTIES
Signal
Problem
2 blinks
Once the pre-purging
phase and safety time
have passed, the
burner goes into lock-
out without the appear-
ance 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-
purging phase
4 pulses
The burner switches
on, but then stops in
lockout
Lockout when burner
stops
7 blinks
The burner goes into
lockout immediately
following the appear-
ance of the flame
Burner goes into lock-
out during operation
2753
Possible cause
1 - The operation solenoid lets little gas . . . .
through
2 - One of the two solenoid valves does . . . .
not open.
3 - Gas pressure too low . . . . . . . . . . . . . . . . Increase pressure at governor
4 - Ignition electrode incorrectly adjusted . . . Adjust, see page 4
5 - Electrode grounded due to broken . . . . . .
insulation
6 - High voltage cable defective . . . . . . . . . . Replace
7 - High voltage cable deformed by high . . . .
temperature
8 - Ignition transformer defective . . . . . . . . . . Replace
9 - Incorrect valve or transformer electrical . .
wiring
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
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
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
25 - Ionisation probe incorrectly adjusted . . . . Adjust, see page 4
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
10 GB
Recommended remedy
Increase
Replace
Replace
Replace and protect
Check
Check connections or replace coil
Clean
suction line
Replace
Eliminate persistence of flame or
replace control box
Increase

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