Riello RS 150/M, Инструкции по установке, использованию и обслуживанию

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Faults - Possible causes - Solutions
The control box has a self-diagnostic system, which easily allows
identifying the operating faults (signal:
RED LED
).
To use this function, wait at least ten seconds from the safety lock
out, and then press the reset button for a minimum of 3 seconds.
After releasing the button, the RED LED starts flashing as shown
in the diagram below.
The pulses of the LED constitute a signal spaced by approxi-
mately 3 seconds. The number of pulses will provide information
about the possible faults, according to Tab. N.
8 Faults - Possible causes - Solutions
RED LED ON - press the release button
for 10s
Press the button
for > 3s
Signal 3s interval Signal
SIGNAL FAULT PROBABLE CAUSE RECOMMENDED SOLUTION
2 blinks Once the pre-purging
phase and safety time
have passed, the burner
goes into lockout with-
out the appearance of
the flame The operation solenoid lets little gas through Increase
One of the two solenoid valves does not open Replace them
Gas pressure too low Increase pressure at governor
Ignition electrode incorrectly adjusted Adjust it
Electrode grounded due to broken insulation Replace
High voltage cable defective Replace
High voltage cable deformed by high tempera-
ture Replace and protect
Ignition transformer defective Replace
Incorrect valve or transformer electrical wiring Check
Defective control box Replace
A closed valve upline the gas train Open
Air in pipework Bleed air
Gas valves unconnected or with interrupted coil Check connections or replace coil
3 blinks The burner does not
switch on, and the lock-
out appears Air pressure switch in operating position Adjust or replace
The burner starts and
then goes into lockout Air pressure switch inoperative due to insufficient air pressure:
Air pressure switch poorly adjusted
Adjust or replace
Pressure switch pressure point pipe blocked Clean
Poorly adjusted head Adjust
High pressure in the furnace Connect air pressure switch to fan
suction line
Lockout during pre-
purging phase Defective motor control contactor
Replace
Defective electrical motor Replace
Motor lockout Replace
4 blinks The burner starts and
then goes into lockout Flame simulation Replace the control box
Lockout when burner
stops Permanent flame in the combustion head or
flame simulation Eliminate persistence of flame or re-
place control box
6 blinks The burner switches on,
but then stops in lockout Defective or incorrectly adjusted servomotor Adjust or replace
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