Scotsman Ice Machine Code b: Bin Is Full
B on a Scotsman Prodigy Plus A Series flake or nugget machine means the bin has reached its full level and the machine is idle. This is normal. The machine should start again after ice is removed.
Low: a normal idle state; no action is needed unless the bin is not full.
- Code
- B
- Maker
- Scotsman
- Equipment
- Ice machines
- Applies to
- Scotsman Prodigy Plus A Series NH0422, NS0422, FS0522, NH0622, NS0622, FS0822, NH0922, NS0922, FS1222, NH1322, NS1322, FS1522
What does Scotsman error code B mean?
B is a status entry in the Controller and Code Display legend of the Scotsman Prodigy Plus A Series service manual. It is labeled Bin is Full, and the manual's wording is that the bin has reached its full level and the machine is idle. A sensor in the bin tells the controller when the ice reaches the full level, and the controller stops making ice until some is taken out. The legend says to see Troubleshooting for causes, which suggests that b can also appear when the machine should not be full. This page does not have those troubleshooting causes, so it can only say that b reports a full bin. If the bin is plainly not full, the sensor or its path needs a technician's check. Otherwise the code is simply the machine waiting for ice to be used.
Affected models and control systems
Scotsman Prodigy Plus A Series models NH0422, NS0422, FS0522, NH0622, NS0622, FS0822, NH0922, NS0922, FS1222, NH1322, NS1322 and FS1522, from the Controller and Code Display legend on pages 19-20 of the service manual. Recall and clear of diagnostic codes is on page 21.
Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.
What you may notice
- B shown on the display
- Machine idle with no ice production
- Bin full or near full
Possible causes
Likely causes — what usually sits behind error code B on this control. A technician confirms which one it is before any part is replaced.
- Bin has reached its full level and the machine is idle
- Ice not being used, so the bin stays full
- Ice piled near the sensor so the machine reads full early
- Bin sensor stuck or blocked so it reads full when ice is low
Safe checks before calling for service
- Look in the bin and see whether it is full of ice.
- Scoop ice away from the sensor area if it is piled up there.
- Wait a short time for the machine to restart.
- If the bin is not full but b stays, do not open the machine.
- Write down the bin level and how long b has stayed, for the technician.
How a technician diagnoses error code B
- Read the display and code history.
- Check the bin level sensor and its wiring.
- Check for ice bridging at the sensor.
- Test sensor output with a meter.
- Confirm the machine restarts when the sensor clears.
- Replace the sensor only after the test.
- Sensor testing means opening the control area with line voltage present.
- Sensor placement affects ice making, so adjustments need the service manual.
- Code history use needs the manual.
How error code B differs from similar codes
B reports a full bin on flake and nugget machines. It is not an error in itself.
Technical reference
- Document
- Service Manual for Modular Flake and Nugget Ice Machines - Prodigy Plus A Series Models
- Edition
- July 2020
- Models / control
- Scotsman Prodigy Plus A Series NH0422, NS0422, FS0522, NH0622, NS0622, FS0822, NH0922, NS0922, FS1222, NH1322, NS1322, FS1522
- Section
- Controller / Code Display legend, pp. 19-20 (recall and clear diagnostic codes p. 21)
- Checked
- October 2026
We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.
Related Scotsman ice machine error codes
Is b a problem?
Not if the bin is full.
Will b clear by itself?
Yes, once ice is removed and the sensor clears.
What if the bin is empty and b shows?
The sensor may be blocked or failed. Call service.
Need help with Scotsman error code B?
A technician confirms the cause on site and gives you the price in writing before any work starts.