Scotsman Ice Ice Maker Error B

⚡ Quick Answer: The Scotsman ice maker error code 'B' indicates that the bin fullness sensor has been triggered, stopping ice production because the machine believes ... ✅ DIY Fixable

What Does Error B Mean?

The Scotsman ice maker error code 'B' indicates that the bin fullness sensor has been triggered, stopping ice production because the machine believes the bin is full. This issue may occur even if the bin is not physically full, leading to unusual sounds or a flashing display. To resolve this, check the ice bin for excess ice and inspect the bin fullness probe for any ice buildup that could cause a false reading.

Common Symptoms:

  • Ice machine stops production when ice bin is (or appears to be) full even if bin is not physically full
  • Ice maker shows a letter code on display rather than numerical fault codes

Possible Causes

  • Bin fullness sensor triggered (bin full indication) (medium)

How to Fix Error B

DIY Fix Check and Adjust Ice Bin/Fulness Probe

  1. Ensure the ice bin is not actually full of ice.
  2. Remove excess ice if present.
  3. Inspect the bin fullness probe or sensor and gently clean it to remove any ice buildup that may falsely trigger a full condition.
  4. Restart the machine and observe whether the code clears.

Technician Only Service Bin Sensor and Control Diagnostics

  1. Disconnect power and remove access panels to reach the bin fullness sensor assembly.
  2. Verify correct placement and operation of the bin fullness probe or sensor.
  3. Use a multimeter to test sensor continuity and replace if defective.
  4. Check control board input for bin sensor to ensure correct signaling and replace board if necessary.

Parts needed: Bin fullness sensor/probe, Control board (if sensor input diagnostics indicate fault)

🛑 When to Call a Pro:
  • If the bin fullness sensor tests fine but the error persists.
  • If the control board inputs/outputs related to bin detection appear faulty.
  • If you are uncertain about safely accessing internal sensors.

Technical Specifications

wattage 60W
component Water Inlet Valve
resistance 20-30 ohms
part_number Scotsman 12-1943-21
voltage_rating 115V AC

Common Questions

What does B error mean on scotsman ice ice maker?

B error indicates the bin fullness sensor is triggered, stopping ice production.

Can I fix scotsman ice ice maker B error myself?

Yes, check for excess ice in the bin and clean the fullness probe.

How much does it cost to fix B error?

Estimated repair costs range from $50 to $300, depending on the issue.

When should I call a technician for B?

Call a technician if the sensor appears fine but the error persists or if you're unsure about accessing internal components.

Data last verified: 2026-07-01

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