E40
What code E40 means on a Frigidaire tumble dryers, what causes it, and which part to check first.
● SEVERITY: HIGH
Frigidaire E40 means: Door Not Closed / Door Switch Failure. The documented cause is: Door not fully latched (push firmly) · Door catch worn or broken · Door switch failure (the plunger switch that detects door closure) · Wiring issue between the door switch and control board
What E40 means
Door Not Closed / Door Switch Failure
The display shows E40 and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by easybear-appliancerepair.com
| DOCUMENTED CAUSE OR CHECK |
|---|
| Door not fully latched (push firmly) |
| Door catch worn or broken |
| Door switch failure (the plunger switch that detects door closure) |
| Wiring issue between the door switch and control board |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine before removing any panel. Lint is flammable: never run a dryer with the filter removed, and clear the duct if the code points to airflow.
What to check, in order
From the quickest check to the one that needs a technician.

Find a specialist
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Frequently asked questions
What does E40 mean on a Frigidaire?
Door Not Closed / Door Switch Failure The documented cause is: Door not fully latched (push firmly) · Door catch worn or broken · Door switch failure (the plunger switch that detects door closure) · Wiring issue between the door switch and control board
Can I fix E40 myself?
It depends on the part involved: Door not fully latched (push firmly) · Door catch worn or broken · Door switch failure (the plunger switch that detects door closure) · Wiring issue between the door switch and control board Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does Frigidaire use other codes on this appliance?
Yes: we document 9 other codes for Frigidaire on this tumble dryers. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.

