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Troubleshooting: Mechanical and Electrical Problems
Trouble Probable Cause Remedy
Knife inserts not set correctly.
Make sure knife inserts are set
correctly and securely in cutterhead.
Uneven depth of cut
side to side.
Planer table not level with cutterhead. Level the table. See pages 16-17.
Board thickness does
not match depth of
cut scale.
Depth of cut scale is incorrect.
Adjust depth of cut scale. Use LED
control panel for greater precision.
Inadequate chain tension. Adjust chain tension.
Sprockets misaligned. Align sprockets.
Chain is jumping.
Sprockets worn. Replace sprockets.
No incoming power. Verify machine is connected to power.
Stop button is still engaged. Rotate stop button to disengage.
Overload automatic reset has not
reset.
When the planer overloads on the
circuit breaker built into the motor
starter, it takes time for the machine
to cool down before restart. Allow
machine to adequately cool before
attempting restart. If problem persists,
check amp setting on the motor
starter inside the electrical box.
Planer frequently trips.
One cause of overload trips which are
not electrical in nature is too deep a
cut. The solution is to take a lighter
cut. If too deep a cut is not the
problem, check the amp setting on
the overload relay. Match the full load
amps on the motor as noted on the
motor plate.
If amp setting is correct, then there is
probably a loose electrical lead or a
failed component. See items below.
Building circuit breaker trips or fuse
blows.
Verify that planer is on a circuit of
correct size. If circuit size is correct,
there is probably a loose electrical
lead. Check amp setting on motor
starter.
Machine will not
start/restart or
repeatedly trips
circuit breaker or
blows fuses.
Loose electrical connections.
Go through all of the electrical
connections on the planer including
motor connections, verifying the
tightness of each. Look for any signs
of electrical arcing which is a sure
indicator of loose connections or
circuit overload.