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User Manual for Avantco 194UCB77A Undercounter Ice Machine
Comprehensive user guide for the Avantco 194UCB77A Undercounter Ice Machine. Includes installation requirements, operation instructions, ice thickness adjustment, maintenance procedures, and troubleshooting for error codes.
Quick answers from the manual
Quick answer
- The Avantco 194UCB77A is an automatic undercounter ice machine. It requires professional installation, regular cleaning of the condenser and water system, and specific water pressure/temperature conditions to operate correctly. p. 1, 5, 6
Key actions
- Adjusting ice thickness p. 8
- Cleaning process p. 14, 15, 16
First start
- Keep the machine upright for at least 24 hours after delivery before startup. p. 4
Problems and fixes
E02: Ice Making Overtime
Check water level sensor, compressor, pump, and inlet valve.
p. 11
E04: High System Temp. Fault
Check cooling fan, defrost valve, and clean air filter/condenser.
p. 11Error codes
| Code | Meaning | Action | Pages |
|---|---|---|---|
| E02 | Ice Making Overtime | Check water level sensor, compressor, pump, and inlet valve. | p. 11 |
| E04 | High System Temp. Fault | Check cooling fan, defrost valve, and clean air filter/condenser. | p. 11 |
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Ice Shape | Bullet Ice | Type of ice produced | p. 5 |
| Production | 96 lb./24 hrs | Daily ice output | p. 5 |
Where to find it in the PDF
- Installation p. 4, 6, 7
- Operation p. 8, 9
- Maintenance p. 13, 14, 15, 16
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
The Avantco 194UCB77A is a fully automatic undercounter ice machine designed for indoor commercial use. Key operational requirements include a stable, leveled floor, proper water pressure (18.75-80 PSI), and adequate ventilation (12" front, 6" sides, 8" rear). The machine requires professional installation and regular maintenance, including cleaning the condenser every three weeks and the water system every 4-6 months.
Installation
The ice machine must be installed by qualified personnel. Ensure the following conditions are met:
- Environment: Indoor, ambient temperature 40-90°F. Not for residential or outdoor use.
- Placement: Must be on a leveled floor. Keep away from heat sources and direct sunlight.
- Clearance: 12" front, 6" sides, 8" rear.
- Water: Potable water, 18.75-80 PSI, 40-90°F.
- Power: Must be reliably grounded with leakage protection.
- Setup: Keep the machine upright for at least 24 hours after delivery before startup to allow refrigerant to settle.
Operation
The machine operates automatically. Once connected to power and water, it begins the ice-making cycle. If the bin is full, the machine stops automatically. To adjust ice thickness:
- Pull up on the adjuster nut to loosen it from the stem.
- Turn the nut to lengthen the stem for thinner ice (float moves up) or shorten it for thicker ice (float moves down).
- Push the adjuster nut back down to lock it.
- Do not adjust based on the first cycle; wait for successive cycles.
Control Panel
The control panel features LED indicators for machine status (INIT, PREP, MAKE, HARV, INLET, FAULT). The CLEAN button is used to initiate the cleaning process. Hold the button for 3 seconds to enter cleaning mode.
Maintenance and Cleaning
Regular maintenance is essential for performance and warranty coverage:
- Exterior: Clean with mild detergent.
- Condenser: Clean every three weeks with a soft brush or vacuum.
- Water Filter: Inspect regularly; replace cartridge every 3-6 months.
- Deep Cleaning: Perform every 4-6 months. This involves removing the roof, back plate, water curtain, spray rack, and water pump for soaking in a cleaning solution.
Troubleshooting
If the machine malfunctions, check the error codes on the display:
- E02: Ice Making Overtime. Check water level sensor, pump, and inlet valve.
- E04: High System Temp. Fault. Check cooling fan, defrost valve, and clean condenser/air filter.
- E07/E08: Condenser Temperature Sensor Fault. Check probe wire connections and resistance.
Manufacturer information
Avantco Equipment
Practical help
Common problems
Ice machine not making ice or slow production
Check water supply, ambient temperature, and ensure the condenser and air filter are clean.
Ice bin full indicator (FUL)
Remove or redistribute ice away from the sensor on the left side of the bin.
Abnormal noise or vibration
Ensure the machine is placed on a leveled foundation and is properly leveled.
Error codes (E02, E04, etc.)
Refer to the troubleshooting section for specific sensor or system faults.
Before use
- Remove all packaging tape inside the machine
- Ensure the machine is leveled
- Connect water line and open the water valve
- Wait 24 hours after delivery before startup
- Verify power supply meets nameplate requirements
Specs in practice
- Ice Production
- 96 lb. per 24 hours
- Water Pressure
- 18.75 PSI to 80 PSI
- Ambient Temperature
- 40-90°F
Images and diagrams
- Schematic diagram shows water inlet, drain, and filter connections.
- Control panel diagram illustrates LED indicators and buttons.
Model compatibility
- Requires potable water
- Not for outdoor use
- Not for residential use
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.