Scotsman Ice Maker Error ERR-4
⚡ Quick Answer: The Scotsman ice maker ERR-4 error indicates a malfunction in the water fill system, leading to issues with ice production. Symptoms include the ice m... ✅ DIY Fixable
What Does Error ERR-4 Mean?
The Scotsman ice maker ERR-4 error indicates a malfunction in the water fill system, leading to issues with ice production. Symptoms include the ice maker failing to produce ice or reduced output, along with a blinking error code on the control panel. Common causes involve water supply restrictions due to blockages in the filter, inlet valve, or water line, which hinder proper water delivery to the ice maker.
Common Symptoms:
- Ice maker not producing ice or reduced ice production
- Error code 4 displayed on control panel
- Potential issues with water delivery or sensing
Possible Causes
- Water supply restriction (filter, inlet valve, or line blockage) (medium)
How to Fix Error ERR-4
DIY Fix Check water supply and filter
- Turn off the ice maker and unplug it.
- Inspect and replace the water filter if clogged or due for a change.
- Check the water supply line and inlet valve for kinks, blockages, or leaks.
- Restore power and see if the error clears.
Technician Only Inspect water delivery and sensor systems
- Verify proper water pressure at the inlet supply.
- Test and clean or replace the water inlet valve if blocked or malfunctioning.
- Inspect water level sensors and associated wiring for faults.
- Use diagnostic tools to confirm sensor functionality and error persistence.
Parts needed: Water filter, Water inlet valve, Water line tubing, Water level or flow sensors
- If the error persists after water supply and filter maintenance.
- If you detect a leak from internal components or cannot safely access the water inlet or sensors.
- If sensor or control board faults are suspected and require specialized diagnostics.
Next step
Choose the next step for ERR-4
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Water Inlet Valve
Controls the flow of hot and cold water into the appliance.
- Typical part-only price
- $25 - $60
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Model-compatible Ice Maker parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Technical Specifications
| wattage | 30W |
|---|---|
| component | Water Inlet Valve |
| resistance | 2-3 ohms |
| part_number | Scotsman 12-1959-21 |
| voltage_rating | 120V AC |
Common Questions
What does ERR-4 error mean on Scotsman ice ice maker?
ERR-4 indicates a malfunction in the water fill system, causing ice production issues.
Can I fix Scotsman ice ice maker ERR-4 error myself?
Yes, check the water supply, replace clogged filters, and inspect for blockages.
How much does it cost to fix ERR-4 error?
Repair costs range from $50 to $300 depending on parts and technician rates.
When should I call a technician for ERR-4?
Call if the error persists after maintenance, or if leaks or sensor faults are suspected.
Data last verified: 2026-07-26
User Comments (0)
Share your experience or solution below.
Please login to post a comment.
Be the first to comment!