20
IS THE ROTATION CORRECT?
NO. DISCONNECT, LOCK AND TAG POWER IN OFF POSITION. INTERCHANGE TWO LEADS
AND TRY AGAIN.
YES. CHECK FOR LEAK IN 1AVPT
SENSING LINE OR FAULTY 1AVPT. SEE
PROCEDURE 2.4
= NO INLET VACUUM SENSED 2 SECONDS AFTER STARTING.
SE CONTROLLER: NO SUMP PRESSURE SENSED 2 SECONDS AFTER STARTING.
SE CONTROLLER
YES. IS 10SV ENERGIZING AT START?
ORIG AND SG CONTROLLER
IS THE AIREND TURNING?
IS THE AIREND TURNING?
NO. IS THE MOTOR TURNING?
NO. CHECK VOLTAGE, STARTER AND MOTOR.
YES. ARE THE BELTS SLIPPING?
NO. BROKEN AIREND DRIVE SHAFT
YES. TIGHTEN THE BELTS
NO. CHECK THE TRIAC, WIRING
OR BAD 10SV.
YES. CHECK FOR BLOCKAGE IN SENSING LINE FOR 10SV TO SUMP
NO. IS THE MOTOR TURNING ?
NO. CHECK VOLTAGE,
STARTER AND MOTOR.
YES. ARE THE
GEARS SPINNING ON
THE SHAFT?
YES. CHECK FOR LOCKED-UP
AIREND
NO. BROKEN AIREND DRIVE SHAFT
ORIG, SG, SE: CHECK MOTOR ROTATION
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