Use and Care Manual
Service Manual
28
Commercial Disposers
Problem Cause Solution
Water leaks from grind chamber
area.
Stationary shredder gasket faulty. Replace gasket. See “Replacing Shredder Gasket” on
page 10.
Water inlet connection loose in body. Replace water inlet connection. See “Cold Water Flow
& Drain Line Diameter” on page 3.
Bottom cover loose or damaged. Tighten or replace cover. See “Bottom Cover and
Fan” on page 18.
Stationary shredder damaged. Replace it. See “Replacing Stationary Shredder” on
page 11.
Water leaks from siphon breaker. Loose plumbing connections. Tighten plumbing connections.
Improper installation. See Installation Guide and reinstall disposer.
Water does not drain or drains
slowly.
Drain line blocked. Clean drain lines from dispose to main sewer. Vent
lines may also required cleaning.
Waste outlet centerline is below
drain line centerline.
Adjust plumbing so drain line centerline is below waste
outlet connections.
Improper drain line slope. Adjust the drain line slope to a minimum fall of 1/4"
per foot.
Grind elements worn or broken. Replace rotating and/or stationary shredder. See “Re-
placing Stationary Shredder” on page 11 and “Replac-
ing Rotating Shredder” on page 12.
Water splashes from disposer during
operation.
Excessive water entering disposer
and/or excessive water pressure.
Reinstall solenoid valve with arrow pointing down-
stream. Disassemble solenoid valve, clean and rein-
stall.
Adjust water amount entering disposer. See “Cold Wa-
ter Flow & Drain Line Diameter” on page 3.
If water pressure can not be adjusted, install safety
bafe, silver guard, and/or cover.
Water splashes from sink bowl. Spray nozzle not installed properly. Spray nozzle should be angled downward approxi-
mately 15°- 20°.
Water runs continuously after dis-
poser is turned off.
Solenoid valve installed backward. Arrow on solenoid must point downstream.
Solenoid valve dirty. Replace solenoid valve.
Diaphragm bleeder hole out of posi-
tion.
Replace solenoid valve.
Water pressure too high. Reduce water pressure.
Normal operation with time delay re-
lay.
Time delay relay can be set for ve seconds to ten
minute post ush.
Defective time delay relay. Check time delay relay circuitry with volt meter and re-
place if necessary.