Manitowoc UYF0140A Technician's Handbook

Part Number 000014797 Rev02 05/18 95
Step 1 Disconnect power to the ice machine, remove
the electrical panel to allow viewing of the control board
lights and pull the wire connector for the harvest float
switch through the bulkhead and disconnect. Attach a
jumper wire to the wire terminals connected to the control
board.
Step 2 Bypass the freeze time lock-in feature by pressing
the power button to cycle the ice machine on. Wait until
water flows over the evaporator, then refer to chart.
Result Correction
10 seconds into the freeze cycle
the ice machine cycles from freeze
to harvest and the control board
harvest light energizes.
Refer to Float Switch
Diagnostics.
The harvest light stays off and the ice
machine remains in freeze.
Proceed to Step 3
Step 3 Disconnect the harvest float switch wire from
the control board and place a jumper on the control
board harvest float switch terminals. Bypass the freeze
time lock-in feature by pressing the power button to cycle
the ice machine off/on. Wait until water flows over the
evaporator, then refer to chart.
Result Correction
10 seconds into the freeze cycle
the ice machine cycles from freeze
to harvest and the control board
harvest light energizes.
The ice thickness float
switch wire is causing the
malfunction.
The harvest light comes on, but the
ice machine remains in the freeze
cycle.
The ice machine is in a 6
minute freeze lock - Cycle
on/off and retest.
The harvest light stays off and the ice
machine remains in freeze.
Replace the control board.

Manitowoc UYF0140A Specifications

General

Brand	Manitowoc
Model	UYF0140A
Category	Ice Maker
Language	English