Recirculation pump error — wash pump not circulating water correctly
The C3 error on the GE GDT635HSMSS indicates recirculation pump error — wash pump not circulating water correctly. This typically occurs due to foreign object lodged in the wash pump impeller. Most homeowners fix this in 25–40 min by following the steps below.
Safety Warning
This is a high-severity error. Unplug the appliance immediately and assess the situation before attempting any repair.
Common Causes of C3
- 1Foreign object lodged in the wash pump impeller
- 2Wash pump motor failure
- 3Spray arm assembly blocked preventing proper water circulation
- 4Control board pump relay failure
How to Fix C3
- 1
Step 1
Turn off the dishwasher and disconnect it from power
- 2
Step 2
Remove the bottom rack and both upper and lower spray arms
- 3
Step 3
Remove the drain filter assembly to access the pump area beneath it
- 4
Step 4
Using rubber gloves and a flashlight, inspect the pump cavity for glass, bones, or hard debris
- 5
Step 5
Remove any obstruction found and attempt to spin the pump impeller gently by hand to confirm it moves freely
- 6
Step 6
Reassemble all components, restore power, and run a normal wash cycle to test
Tools Needed
When to Call a Technician
Pump area is clear but C3 error returns — the circulation pump motor has failed and needs professional replacement
Frequently Asked Questions
Common questions about GE C3 error
The C3 error on the GE GDT635HSMSS means the recirculation pump that sprays water onto dishes during the wash cycle is not operating correctly. A hard foreign object such as a broken glass piece or bone lodged in the pump impeller is the most common correctable cause. Removing the obstruction often resolves this error without any parts replacement.
Pre-rinse dishes to remove bones, glass shards, fruit pits, and packaging labels before loading them in the dishwasher. These hard objects can slip through the filter into the pump area. Also clean the filter regularly — a clean filter is the first barrier preventing debris from reaching the pump impeller.
Was this guide helpful?
Help us improve our repair guides