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One heating zone is
not reaching setpoint
and another heater is
overheating.
Setpoint is reached
but slightly off in
temperature.
Heater platen is
overheating.
Upper heater not
coming down parallel
to the lower platen.
Upper platen falling
down or lost
tension.
Sensors maybe crossed.
Offset may need to be calibrated and
adjusted.
1. The mechanical Relay may be
stuck in the closed position (zone 1,
lower platen #1 labeled on this relay,
zone 2, left upper and zone 3, right
upper).
2. If you are receiving 12vdc on the
coil of the relay, the controller is
properly functioning.
Parallel lever not attached either in
the rear out on the upper heater
platen. Check to see if parallel leveler
is connected on both sides. The
retaining clip attached to pin may
have come off.
The springs have lost some
tension.
Make sure each sensor is
connected to its prospective
position on the terminal block
and back to the controller.
Call (800) 624-6717 for
instructions.
Use an Ohm meter for a
continuity check must check at
the cold pins of the heater (where
the heater wire is brazed at
the cold pin. This will eliminate
any other failure before the
heater element validating the loss
off continuity at the source the
heater element.
Reconnect the pin and the
retaining E-Clip.
Remove rear panel and adjust the
retaining collars on shaft by
winding the spring tighter. There
are multiple set screws that need
to be loosened in order to wind
the spring tighter. Once proper
tension is achieved, tighten all set
screws to prevent tension loss.
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