Service Manual
Table Of Contents
- General Information
- Model Numbers
- Installation
- Maintenance
- Troubleshooting
- Component Check Procedures
- Electrical Components
- Main Fuse
- ICE/OFF/CLEAN Toggle Switch
- Float Switch
- Ice Damper and Hall Effect Switches
- Selector Switch
- Dispense Lever Activated
- Touchless Sensor Activated
- Dispense Switch
- Touchless Sensor
- High Pressure Cutout Control
- Fan Cycle Control
- Low Pressure Cutout (LPCO) Control
- Compressor Electrical Diagnostics
- Diagnosing Start Components
- Refrigerant Recovery/Evacuation
- System Contamination Clean-Up
- Electrical Components
- Component Specifications
- Charts
- Diagrams
76 Part Number 000015432 4/18
SWITCH FAILS CLOSED
HES#1
1. Reset line voltage to the ice machine
2. Wait 15 minutes for delay to expire.
3. HES#1 light de-energized.
4. The ice machine starts, runs for 20 seconds, then de-
energizes.
5. HES#1 light is de-energized.
HES#2
1. Reset line voltage to the ice machine
2. Wait 15 minutes for delay to expire.
HES #2 is a three wire switch and can stop in three
separate failure modes.
• HES #1 is energized, HES #2 is de-energized, and the
ice machine will not start.
• HES #1 and HES #2 lights are de-energized, and the ice
machine will not start.
• HES #1 and HES #2 are energized. The ice machine
starts, immediately shuts off and starts another
15-minute delay period (control board lights race to
indicate 15-minute delay period). The ice machine will
repeat the sequence until the toggle switch is moved
to OFF or power is disconnected to the ice machine.
In all failure modes, disconnecting HES #2 from the control
board will result in Switch Fails Open or Is Disconnected
symptoms (see previous page).