Hoshizaki IM-240AME, Service Manual

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18 18
E1CG4880210 E1CG4880210
PATTERN PATTERN
1 1 Actuator Toggle Switch Actuator Toggle Switch
Lever bent
Lever bent
Cam Arm (A) broken Cam Arm (A) broken
Defective Actuator Defective Actuator
Motor
Motor
Defective Controller Defective Controller
Board
Board
Replace Actuator Replace Actuator
Toggle Switch
Toggle Switch
Replace Replace
Replace Replace
Replace Replace
(1) (1)
(2) (2)
(3) (3)
(4) (4)
Only Only
First
First
Cycle
Cycle
OR OR
Flashing Flashing
Cam Arm Cam Arm
Lever Lever
INTERLOCK INTERLOCK
INDICATOR INDICATOR
WATER TANK WATER TANK
POSITION POSITION
POSSIBLE CAUSE POSSIBLE CAUSE REMEDY REMEDY
[d] FAULT DIAGNOSIS [d] FAULT DIAGNOSIS
Check the status of the Service Lamp on the Controller Board (LED-5, See “[c] SEQUENCE”) Check the status of the Service Lamp on the Controller Board (LED-5, See “[c] SEQUENCE”)
by removing the Control Box Cover.
by removing the Control Box Cover.
Lamp ON - Water Plate closed Lamp ON - Water Plate closed
This tends to indicate the Back-up Timer has stopped machine operation during the freeze This tends to indicate the Back-up Timer has stopped machine operation during the freeze
cycle. High ambient and water temperatures are an obvious cause. But check out each
cycle. High ambient and water temperatures are an obvious cause. But check out each
component that could result in an extended freezing time (See guide below).
component that could result in an extended freezing time (See guide below).
Lamp ON - Water Plate open Lamp ON - Water Plate open
The Timer has stopped the machine because of an excessive defrost time. See the guide The Timer has stopped the machine because of an excessive defrost time. See the guide
below to check out the probable cause.
below to check out the probable cause.
Lamp flashing ON/OF Lamp flashing ON/OF
If on the first cycle, check out the Cam operation and/or Toggle Switch. If the machine has If on the first cycle, check out the Cam operation and/or Toggle Switch. If the machine has
been in service for some time, the Controller Board may be at fault.
been in service for some time, the Controller Board may be at fault.
REMEMBER REMEMBER:: Hoshizaki controllers are very reliable. They also control every component’s Hoshizaki controllers are very reliable. They also control every component’s
operation. So if a component malfunctions, the controller will respond.
operation. So if a component malfunctions, the controller will respond.
Do not replace controllers in an attempt to shorten the diagnostic process
Do not replace controllers in an attempt to shorten the diagnostic process
and not before carefully checking the actual fault and possible cause.
and not before carefully checking the actual fault and possible cause.
When the icemaker stops, the Controller Board Interlock Indicator shows possible faults. When the icemaker stops, the Controller Board Interlock Indicator shows possible faults.