Viking Dishwasher I40 Error: Leak detected
What Viking Dishwasher i40 Code Means i40 is a leak detection alarm — the flood sensor in the base has detected water. Stop using the dishwasher immediately and turn off the water supply. Check the door gasket first, then look for loose connections. Professional service is usually needed to find and fix internal leaks (from […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. Do not run the dishwasher with an active leak. Water damage to flooring and cabinetry can be expensive.
Can I reset the code?
No. The leak must be found and fixed. Tilting the unit to drain the base pan may temporarily clear the sensor, but the leak will recur.
When to stop immediately?
Stop if you notice: Immediately — do not run with a leak, If water is pooling under the unit.
Symptoms You May Notice
Dishwasher stops — possible leak
The unit shuts down immediately and water may be pooling underneath the dishwasher.
Dishwasher stops immediately
Unit shuts down mid-cycle.
Water under the unit
Possible water visible on floor around the dishwasher.
Possible Causes
Loose hose connection
A water hose clamp or connection has come loose inside.
Requires ProfessionalDamaged door gasket
The door seal is worn and water is leaking past it.
DIY PossibleCracked tub or sump
A crack in the wash tub allowing water into the base.
Requires ProfessionalSafe Checks You Can Do
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1
Check for visible leaks
Turn off water supply, carefully pull dishwasher out, and look for water pooling in the base pan or around hose connections.
Have towels ready. Turn off the circuit breaker before pulling the unit out.
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2
Inspect door gasket
Check the rubber gasket around the door for tears, gaps, or food debris preventing a proper seal.
Clean gasket with warm soapy water and check for deformation.
When to Call a Professional
Contact a qualified technician if:
- Leak from internal hose connections
- Cracked sump or tub
- Flood switch triggers even after tipping water from base pan
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
Dishwasher Repair Service Schedule Appointment