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ALAS Appliance Service

Frigidaire Dishwasher i40: Filter or Sump Clogged

i40 is a cleaning job far more often than a repair. Frigidaire’s answer is the glass trap and filter at the bottom of the tub.

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i40, According to Frigidaire

Frigidaire says error code i40 indicates a clogged filter or sump: food soil has collected where the water is filtered and pumped. Its advice is to clean out the glass trap and run the dishwasher again, using its glass trap and filter guide for the details. Because a blocked sump also slows draining, i40 and the drain code i20 often travel together. Source: Frigidaire i40 (opens in a new tab).

Written Estimate First

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Based in Plano

Serving homes across Dallas–Fort Worth

Real Warranty

90 days, 6 months for members

Diagnostic Credited

Toward the repair if you go ahead

Evenings and Weekends

Open daily, 8–8

How to Clear i40

Five minutes at the bottom of the tub.

1

Remove the glass trap

Take out the bottom rack, then lift out the glass trap and filter following your model’s guide.

2

Rinse and inspect

Rinse both pieces under warm water and look for cracks or tears that would let debris into the pump.

3

Reinstall and run again

Lock the parts back in place and re-run the dishwasher, as Frigidaire recommends.

If i40 returns right after cleaning, the sump or pump may hold debris you can’t reach.→

When to Call a Technician

Schedule a repair if:

  • i40 returns right after cleaning
  • Something rattles in the sump
  • The filter is cracked or warped
  • Draining stays slow

Written estimate first

Clogs Keep Coming Back?

We clear Frigidaire sumps and test the pump and filter assembly, with a written quote before work.

  • Diagnostic fee credited toward the repair
  • 90-day warranty, 6 months for members
  • Open daily, 8 AM–8 PM
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Frigidaire i40 FAQs

Frigidaire says it indicates a clogged filter or sump.

Check it whenever dishes come out gritty or water is slow to drain, and more often if you load dishes without scraping.

Scrape off large scraps, bones and labels. Those are what end up clogging the filter and sump.

Debris that gets past a damaged filter can jam or wear the pump, which is why a cracked filter is worth replacing.

ALAS Appliance Repair

Get Your Frigidaire Dishwasher Washing Clean

  • Written Estimate First
  • Diagnostic Credited
  • Real Warranty
  • Based in Plano
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