Riello RS 1000/M C01, Installation, Use And Maintenance Instructions

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33
20061862
GB
Faults - Probable causes - Solutions
Symbol
(1)
Problem Possible cause Recommended remedy
The burner does not start
No electrical power supply Close all switches and check connections
A limit or safety thermostat/pressure switch
open
Adjust or replace
Control box lockout Release the control box
Control box fuse interrupted Replace it
(2)
Incorrect electrical wiring Check
Defective control box Replace
No gas supply
Open the manual valves between contac-
tor and train
Mains gas pressure insufficient Contact your GAS COMPANY
Minimum gas pressure switch fails to close Adjust or replace
Air pressure switch in operating position Adjust or replace
The servomotor contact does not intervene
(closure cam 0°) Adjust the closure cam 0°
or replace the servomotor
The burner does not
switch on, and the lock-
out appears
Flame simulation Replace the control box
Faulty motor remote control switch Replace
Defective electrical motor Replace
Motor lockout Release the thermal relay
The burner starts up but
stops at the damper
maximum opening
Do not intervene the servomotor contact
(maximum cam opening) Cam adjustment (maximum opening)
or replace the servomotor
The burner switches on,
but then stops in lockout
Air pressure switch does not switch owing to lack of air pressure.
Air pressure switch incorrectly adjusted. Adjust or replace
Pressure switch pressure test point pipe
blocked
Clean
Poorly adjusted head Adjust
Dirty fan Clean
High depression in the furnace Contact our Technical Department
The burner turns on and
then remains in lockout
mode
Failure to the flame detection circuit Replace the control box
The burner remains in
the pre-purge phase. Do not intervene the servomotor contact (cam
minimum) Cam adjustment (minimum)
or replace the servomotor
Once the pre-purging
and the safety time has
elapsed the burner goes
into lockout without the
flame appearing
Gas pressure too low Increase pressure at governor
Ignition electrode incorrectly adjusted Adjust it
Electrode grounded due to broken insulation Replace
Faulty or grounded high voltage cable Replace
High voltage cable deformed by high tempera-
ture
Replace and protect
Faulty ignition transformer Replace
Incorrect valve or ignition transformer connec-
tions
Redo them
Defective control box Replace
A closed valve upline the gas train Open
The VP1 or VP2 solenoid does not open Replace the coil or the rectfier panel
The VP1 solenoid let too little gas through Increase
Air in pipework Bleed air
Lockout with flame
appearing
The VS or VR solenoids let too little gas through Increase
Dirty flame sensor Check, replace flame sensor
Faulty connection Check, replace flame sensor
Insufficient detection current
(min.70 µA)
Measure current, replace the flame sensor
Flame sensor exhausted, faulty Replace
Maximum gas pressure switch intervention Adjust or replace
Defective control box Replace
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