Manitowoc Ice Chiplet QC0700 - Manual (Page 53)

Part Number 000002688 5-1
Section 5
Before Calling Service
Checklist
If a problem arises during operation of your ice machine, follow the checklist below before calling for service. Routine
adjustments and maintenance procedures are not covered by the warranty.
Problem Possible Cause To Correct
Ice machine does not operate. No electrical power to the ice machine. Replace the fuse/reset the breaker/turn on
main power switch/plug cord into receptacle.
Control Board fuse open
ICE/OFF/CLEAN toggle switch set improperly. Move toggle switch to the ICE position.
8 minute lockout has not expired. Bin level light will flash to indicate 8 minute
lockout has not expired. Refer to Sequence of
Operation
Bin level sensor is disconnected or is
contacting the ice. Connect bin level sensor or remove ice
contacting probe.
High Pressure Control is open. Clean condenser, check fan motor, check high
pressure control operation.
Gear Motor runs but
compressor will not start. Water reservoir is empty. (Water must contact
the water level probe to start the compressor). Open water service valve or clean float valve
screen.
Water level probes out of position Correct water level probe position.
Remotes Only No electrical power to condensing unit Replace the fuse/reset the breaker/turn on the
main power switch.
Ice machine stops and can be
restarted by moving the toggle
switch to OFF and back to ICE. The SafeGuard feature is stopping the ice
machine. Refer to “SafeGuard Feature” in this section
Ice quality is poor. Poor incoming water quality. Contact a qualified service company to test the
quality of the incoming water and check filter.
Water filtration is poor. Replace filter.
Incoming water temperature is above 90 ° F
(32.3 ° C)
Correct water temperature. (Verify check/
mixing valves in other equipment are working
properly). Connect the ice machine to a cold
water supply.
Water pressure is low. Water pressure must remain between 20 and
80 psig.
Water softener is working improperly (if
applicable). Repair the water softener.
Low ice capacity. Water float valve screen is dirty. Remove and clean the filter screen.
Incoming water supply is shut-off. Open the water service valve.
Water dump valve is leaking. Clean the dump valve.
Water Pressure is low. Water pressure must remain between 20 and
80 psig.
Incoming water temperature is above 90 ° F
(32.2 ° C)
Correct water temperature. (verify check/
mixing valves in other equipment is working
properly)
Water float valve stuck open or leaking. Remove the float valve and clean it.
Air-Cooled Models Only Objects stacked around ice machine, blocking
airflow to condenser.
Remove items blocking airflow.
High air temperature around ice machine. Air temperature must not exceed 110 ° F
(43.3 ° C)
Inadequate clearance around the ice machine. Provide adequate clearance.
The condenser is dirty. Clean the condenser.