Sub-Zero Refrigerator Error Code EC 50: How to Fix It
Easy 10-15 minutes Low Severity
Verified June 2026
- Error Code
- EC 50
- Brand
- Sub-Zero
- Product Type
- refrigerator
- Severity
- Low
- DIY Difficulty
- Easy
- Estimated Fix Time
- 10-15 minutes
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Tools You'll Need
- Clean towel
- New water filter
How to Fix Error Code EC 50
-
Locate Your Water Filter
-
Turn Off Water Supply (If Applicable)
Turning off water prevents spillage during filter removal. -
Remove the Old Filter
Water may drip when removing the filter - keep a towel handy. -
Prepare the New Filter
-
Install the New Filter
-
Turn Water Supply Back On
-
Flush the System
-
Reset the Filter Indicator
Parts You May Need
Sub-Zero water filter
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Sub-Zero water filter
Check Price on Amazon
Sub-Zero water filter
Check Price on Amazon
Sub-Zero water filter
Check Price on Amazon
Sub-Zero water filter
Check Price on Amazon
Sub-Zero water filter
Check Price on Amazon
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When to Call a Professional
Call a professional if you cannot locate the filter housing, if the new filter won't fit properly, or if water continues leaking after installation. Also contact Sub-Zero service if the EC 50 error persists after completing all steps and resetting the system.Frequently Asked Questions
How often should I replace my Sub-Zero water filter?
Sub-Zero recommends replacing water filters every 12 months or after filtering approximately 375 gallons of water, whichever comes first. Heavy usage may require more frequent replacement.
What happens if I ignore the EC 50 error code?
Ignoring EC 50 won't damage your refrigerator, but water and ice quality will decline. Old filters can become breeding grounds for bacteria and may affect taste and odor of your water and ice.
Can I use generic water filters in my Sub-Zero refrigerator?
While generic filters may fit, Sub-Zero recommends using genuine Sub-Zero filters to ensure optimal performance and maintain your warranty. Generic filters may not meet the same filtration standards.
Why is my water cloudy after changing the filter?
Cloudy water is normal immediately after filter replacement due to air bubbles and loose carbon particles. Run 2-3 gallons through the dispenser and the water should clear up completely.
Will EC 50 error affect my refrigerator's cooling performance?
No, the EC 50 error only affects water filtration and does not impact your refrigerator's cooling, freezing, or ice-making capabilities. Your food will stay fresh while this error is displayed.