Scotsman AC / EC 47–177 (R290)
Compact spray cubers with an electronic board, push button, LED panel and DIP switch. AC models make gourmet cubes, EC models standard cubes.
What it is: Self-contained cube ice maker. Covers AC and EC 47, 57, 87, 107, 127, 147 and 177 on R290.
Key combo: Push button 2–5 s during water fill for Cleaning Mode. More than 5 s skips fill, forces harvest, or ends harvest. Hold more than 20 s to reset the cleaning reminder.
Scotsman AC / EC 47–177 (R290) error codes
| Code | Meaning | Likely cause | How to reset |
|---|---|---|---|
| Red alarm LED on steady | Condenser too hot (over 70 °C air, 60 °C water cooled) | Blocked condenser filter, fan motor fault, short of condenser water, room over 40 °C | Fix the cause, switch off, wait a few seconds and switch on. It restarts with a 5-minute fill. |
| Red alarm LED blinking | Evaporator above 0 °C 15 minutes after freeze started | Leaking hot gas or inlet valve, short of refrigerant, compressor cycling | Repair the cause. |
| Freezing + red LED on steady | Condenser sensor out of order | Sensor or wiring | Replace the sensor. |
| Freezing + red LED blinking | Evaporator sensor out of order | Sensor or wiring | Replace the sensor. |
| Bin full LED on | Unit off on full bin | Normal, or a faulty level control | Clean or replace the level control if it stays on. |
| Bin full LED blinking slow | Infrared beam broken | Ice in the beam | Clears when the beam is clear. |
| Bin full LED blinking fast | Beam restored after a full-bin stop | Normal | — |
| LEDs blinking alternately | Infrared sensor out of order | Sensor fault | Replace the level control. |
| Freezing LED blinking | 60-minute start delay (jumper J3 out) | Setting | Press the button during the delay to skip it. |
How to use the push button
- During the water fill phase, press the push button for 2 to 5 seconds to start Cleaning Mode.
- Press for more than 5 seconds during fill to go straight to freeze.
- Press for more than 5 seconds during freeze to go to harvest, or during harvest to go back to freeze.
Key settings
| Code | What it does | Range | Default / typical |
|---|---|---|---|
| DIP 1–4 | Timed end of freeze | per chart | per model |
| DIP 5–6 | Harvest program A/B/C/D | A–D | per model |
| Harvest length | Set by evaporator time from 0 °C to −15 °C | 90–180 s | — |
| Water fill | Fill at start-up | fixed | 5 min |
| Condenser cut-out | High condensing temperature stop | 70 °C air / 60 °C water | — |
How to change a setting (DIP switch)
- Isolate power first.
- Set DIP keys 1–4 for the timed part of freeze, 5–6 for the harvest program (A–D) and the remaining keys as per the model chart in the manual.
- Restore power.
Notes
- Check the model chart in the manual for the factory DIP pattern before changing it.
For licensed technicians only. This equipment can involve mains voltage, high-voltage microwave circuits, gas and refrigerant. Isolate power (and gas) before opening panels, follow the manufacturer's manual and your local licensing rules (for example ARC refrigerant handling and electrical or gas licences). Wrong settings can spoil food or damage equipment. Check every value on the unit in front of you before changing it.
Based on: Scotsman AC/EC 47–177 R290 service manual. Always check the manual for your exact model and software version.
ServiceModes is not affiliated with Scotsman or any other manufacturer. Written in our own words from the manufacturer's documentation.