GE Dishwasher Error Code C5
Control detects two consecutive pump out times of less than 6 seconds, indicating no water has entered the…
Control detects two consecutive pump out times of less than 6 seconds, indicating no water has entered the dishwasher during the last two fills or the pump inlet is clogged.
First step from the service manual
Check water supply and turn on; press RESET and try again; check valve and signal; repair leak causing water to drain from tub; replace diverter valve mechanism.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
Get the full diagnostic procedure for C5.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What C5 means on a GE dishwasher
The C5 error code on a GE dishwasher indicates that the control board has detected two consecutive pump-out cycles lasting less than 6 seconds each. Under normal operation, the drain pump runs for a significant period to expel water from the tub. When the pump-out time falls below this 6-second threshold on back-to-back fill cycles, the control interprets this as evidence that little or no water is actually present in the tub, meaning the previous fill cycle did not successfully introduce water into the dishwasher.
This condition points to one of two primary failure areas: a water supply problem preventing water from entering the tub, or a blockage at the pump inlet causing water to drain away before the pump cycle even begins. On the supply side, the issue may be a closed or kinked water supply line, a faulty water inlet valve that is not opening properly, or a failed inlet valve solenoid that is not receiving or responding to its electrical signal. On the drain side, a clogged pump inlet strainer or a leak in the tub or sump area can allow water to escape before filling is complete.
The diverter valve mechanism is also implicated in this fault. If the diverter valve fails to correctly direct water flow within the wash system, the control may detect inadequate water presence during the fill sequence. Technicians should begin by confirming the water supply shutoff valve is fully open, checking water pressure at the inlet, inspecting the inlet valve and its electrical signal, looking for active leaks at the tub base or door gasket, and examining the pump inlet area for debris or blockage before moving on to component replacement.
Source: manufacturer service documentation.
Common causes of C5
- 01
Water supply valve closed or restricted
Wiring / connectionIf the household water shutoff valve supplying the dishwasher is partially or fully closed, water cannot enter the tub. Check the valve under the sink and ensure it is fully open, and verify adequate water pressure at the connection.
- 02
Faulty water inlet valve
Part replacementThe inlet valve controls water entry into the dishwasher and can fail mechanically or electrically. If the solenoid coil is open or the valve body is clogged with sediment, water will not flow into the tub during the fill cycle.
- 03
Active tub or sump leak
Part replacementA leak at the door gasket, tub seam, or sump area can allow water to drain out of the tub as fast as it enters, resulting in near-instant pump-out times. Inspect the base of the dishwasher and the door seal for signs of water.
- 04
Clogged pump inlet
Wiring / connectionDebris such as broken glass, food buildup, or foreign objects can block the pump inlet strainer, preventing proper water circulation and causing the control to detect insufficient water. Remove and clean the pump inlet filter and strainer basket.
- 05
Failed diverter valve mechanism
Part replacementThe diverter valve directs water flow to the appropriate wash zones during the cycle. If it fails in a position that does not allow proper water distribution or retention, the control may register the low-water condition that triggers C5.
Frequently asked questions about C5
What does C5 mean on a GE dishwasher?
Can I fix the C5 error myself, or do I need a technician?
Is it safe to keep using my dishwasher when the C5 code is showing?
Will pressing Reset clear the C5 error code?
How much does it cost to repair a GE dishwasher showing a C5 error?
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