220 Volts 3 Phase Grinders...1403 Series

Troubleshooting All ditting® 3 Phase Grinders:

Our motors do not burn out easily. Look for simple problems. Never assume that the motor is bad because the grinder is doing something unusual.

Here are some common problems:

Problem Check For Possible Solution
No output
Coffee does not come out		 Direction of Rotation
Looking into the hopper, when the grinder comes to a stop, it should be turning counter- clockwise.		 Reverse any two of the wires in the plug of the grinder. This needs to be done once when the grinder is first installed or plugged into a new outlet.
Grinder changes direction of rotation every time it is turned on. One of the three phases is not delivering power to the motor. The problem is one of:
--Bad switch (KFA version)
--Bad wire in the plug or outlet (any model)
--Bad contactor if KFR or KR model
Grinder stops under load. Runs okay without beans but stops with beans. One of the three phases is not delivering power to the motor. The problem is one of:
--Bad switch (KFA version)
--Bad wire in the plug ir outlet (any model)
--Bad contactor if KFR or KR model
Grinder stays on. Bad contactor. KR or KFR1403. Replace contactor.
Breaker keeps tripping off. Short circuit. Look for burned out wire shorting to the grinder housing: either at the base of the machine or in the switch area, or a crimped wire at the base.
Grinding too slow and/or overheating. Worn out grinding discs, or worn out/broken fins on the lower rotating plate. Replace the grinding discs and/or replace the lower rotating plate.