C4
What code C4 means on a GE dishwashers, what causes it, and which part to check first.
● SEVERITY: LOW
GE C4 means: Fill timeout. The dishwasher didn't fill to the required level within 5 minutes. The documented cause is: Check the water supply valve, inlet screen (mesh filter inside the connection), and water pressure (minimum 20 PSI required for Monogram quad-arm operation)
What C4 means
Fill timeout. The dishwasher didn't fill to the required level within 5 minutes
The display shows C4 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 |
|---|
| Check the water supply valve, inlet screen (mesh filter inside the connection), and water pressure (minimum 20 PSI required for Monogram quad-arm operation) |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. The heating element and the wash water can stay hot long after the cycle ends.
What to check, in order
From the quickest check to the one that needs a technician.

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Frequently asked questions
What does C4 mean on a GE?
Fill timeout. The dishwasher didn't fill to the required level within 5 minutes The documented cause is: Check the water supply valve, inlet screen (mesh filter inside the connection), and water pressure (minimum 20 PSI required for Monogram quad-arm operation)
Can I fix C4 myself?
It depends on the part involved: Check the water supply valve, inlet screen (mesh filter inside the connection), and water pressure (minimum 20 PSI required for Monogram quad-arm operation) 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 GE use other codes on this appliance?
Yes: we document 25 other codes for GE on this dishwashers. 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.

