Kold-Draft GB564AC - Page 54

new 60 Series Service Manual.rev. 06.01.16.docx - 49 –
TROUBLE SHOOTING
Problem
Possible Cause
Solution
Ice cubes do not break apart after
defrost because of thick web between
cubes.
Adjust spacing between evaporator
and water plate. See the web
thickness adjustment illustration for
more information.
Ice cubes have uneven dimples.
Dimples are larger on right side of
evaporator because of low refrigerant
charge.
Remove refrigerant and recharge
the system to specifications.
Ice cubes have uneven dimples.
Dimples are larger on right side of
evaporator because of high
evaporator superheat.
Adjust the expansion valve to
decrease the evaporator superheat.
Ice cubes have uneven dimples.
Dimples are larger on left side of
evaporator and ice may freeze into
the right side surface of the water
plate because of low evaporator
superheat.
Adjust the expansion valve to
increase the evaporator superheat.
Actuator motor turns
clockwise at start of
defrost.
Arms up and arms down switches are
defective, or the relationship between
the switches and switch operators is
improper.
Confirm proper operation of the
arms up and arms down switches
and replace if needed. Confirm
proper settings of the switch
operators and adjust as required.
Arms up and arms down switch wiring
is incorrect.
Correct switch wiring.
Cam arms are
improperly
positioned when the
water plate is fully
opened and/or
closed.
The relationship between the
switches and switch operators is
improper.
Adjust switch operators so the cam
arms are at the 12 o'clock position
when the water plate is fully closed
and at the 7 o'clock position when
the water plate is fully open. See
the cam arm, switch and switch
operator relationship illustration for
more information.