Ravelli Sphere Serie Bedienungs- Und Wartungshandbuch Seite 108

AL 14 SCREW No cable connection to power the gear motor
PHASE screw
AL 15 SCREW TRIAC An internal part of the electronic board that
controls the pellet infeed screw is faulty.
Possible voltage drops or incorrect input
voltage
Use and maintenance manual Sphere
Check the mains voltage.
Check the flue is free and clean
Check the mains voltage.
Rev.0 18/05/2020
Pag.47