R.P.S. Corporation 290 Series Operating Instructions & Parts Manual - page 18
290/350 Operator and Parts Manual V13.1210
18
TROUBLESHOOTING CENTRAL COMMAND
NOTE: THIS MACHINE IS OPERATED BY A SOPHISTICATED ELECTRONIC “CONTROLLER” THAT HAS
MANY FAIL SAFES WITHIN IT. IT SELF-ANALYZES PROBLEMS AND FLASHES A FOUR-DIGIT AL-
PHA-NUMERIC CODE OF WHAT IS WRONG IN THE LCD WINDOW.
MOST OF THESE CODES REQUIRE A TECHNICIAN ATTENTION. YOU SHOULD NOT ATTEMPT REPAIRS
YOU ARE UNFAMILIAR WITH, ESPECIALLY IF YOU ARE NOT AUTHORIZED TO WORK ON THIS EQUIP-
MENT.
1. 7601 AND 7602 ERROR: SCRUB DECK CURRENT OVER
LOAD. THIS CAN OCCUR WHEN DRIVING OVER A BUMP
IN THE FLOOR. TO RESTART, TURN OFF THE KEY AND
TURN IT ON AGAIN. TO AVOID THIS ERROR, EITHER
SLOW DOWN ON BUMPY PARTS OF THE FLOOR, OR RE-
DUCE DOWN PRESSURE ON THE PADS.
2. 1500 ERROR: THERE IS AN OPEN IN THE PARKING
BRAKE CIRCUIT. CHECK THE PARKING BRAKE WIRING
AND THE PARKING BRAKE COIL TO FIND THE OPEN CIR-
CUIT.
3. 770, 7701, 7702, AND 7703 ERROR: THE VACUUM MO-
TOR HAS EXCEEDED THEIR AUTHORIZED POWER LIM-
ITS. TURN OFF KEY AND TURN ON AGAIN TO CLEAR.
4. BOOST ON: ALLOWS FRONT WHEEL DRIVE TO DRAW
MORE POWER WHEN NEEDED TO CLIMB RAMPS FOR 30
SECONDS.