mypros+
Error code reference

GE Dishwasher Error Code F26

Replace motor with faulty TCO (thermal cut out).

GE codesGE dishwasher codes

Replace motor with faulty TCO (thermal cut out).

First step from the service manual

Check circulation and drain motor TCO, replace correct motor.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for F26.

  • 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
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F26 means on a GE dishwasher

The F26 error code on a GE dishwasher indicates that the thermal cut out (TCO) within the circulation or drain motor has tripped or failed. The TCO is a protective safety device built into the motor assembly that interrupts electrical continuity when the motor reaches an unsafe operating temperature. When the control board detects that the TCO circuit has opened, it logs F26 and halts operation to prevent further damage or a potential fire hazard.

The TCO is not a separately serviceable component in most GE dishwasher motor assemblies. It is integrated into the motor housing, which means a failed TCO requires full motor replacement rather than a simple fuse swap. The diagnostic process involves checking both the circulation motor and the drain motor to determine which unit contains the faulty TCO. A technician should use a multimeter to test continuity through the TCO circuit on each motor. A reading of no continuity confirms the TCO has opened and the motor must be replaced.

Common underlying causes for TCO failure include prolonged motor overloading, blocked pump impellers, debris restricting water flow, and repeated high-temperature operating cycles that stress the motor beyond its rated thermal limits. Addressing the root cause of overheating before installing a replacement motor is critical to preventing repeat failure.

Source: manufacturer service documentation.

Common causes of F26

  1. 01

    Failed TCO in the circulation motor

    Part replacement

    The circulation motor pump the wash water through the spray arms. If its internal TCO has opened due to overheating, the motor will show no continuity and must be replaced as a complete assembly.

  2. 02

    Failed TCO in the drain motor

    Part replacement

    The drain motor removes water at the end of each cycle. Overloading or debris restriction can cause the drain motor to overheat and trip its TCO, requiring full motor replacement.

  3. 03

    Blocked pump impeller or filter

    Wiring / connection

    Food debris, broken glass, or foreign objects lodged in the pump impeller can cause the motor to work harder than its rated load, generating excess heat that trips the TCO. Inspect the sump area and filter assembly for obstructions before replacing the motor.

  4. 04

    Restricted water flow causing motor overload

    Wiring / connection

    Clogged spray arms or a dirty filter basket can restrict water circulation, forcing the motor to run under higher load conditions and generating heat that eventually trips the TCO.

  5. 05

    Motor winding failure

    Part replacement

    Internal winding degradation within the motor can cause excessive current draw, leading to chronic overheating and TCO activation. This is more common on older units with high cycle counts.

See the test procedure for each cause

Frequently asked questions about F26

What does F26 mean on a GE dishwasher?
F26 means the control board has detected a faulty thermal cut out (TCO) inside one of the dishwasher motors, either the circulation motor or the drain motor. The TCO is a built-in safety device that opens the circuit when the motor overheats. GE's diagnostic guidance for this code is to check both motors for TCO continuity and replace the motor that has failed. Because the TCO is integrated into the motor housing, the entire motor assembly must be replaced.
Can I fix F26 on my GE dishwasher myself?
A knowledgeable DIYer can address F26 by using a multimeter to test continuity through each motor's TCO circuit and identifying which motor has failed. Replacing a dishwasher motor requires disconnecting power, accessing the sump area, and removing the pump assembly, which involves moderate mechanical skill. If you are not comfortable working around electrical components or disassembling the lower pump housing, a professional technician is recommended.
Will resetting my GE dishwasher clear the F26 error?
Resetting the dishwasher by cutting power will temporarily clear the displayed code, but the underlying motor TCO failure will remain. Once the control board runs a cycle and checks the motor circuit again, F26 will return. A reset is useful for confirming the error is persistent, but it does not repair the failed TCO or the motor.
Is it safe to use my GE dishwasher when F26 is displayed?
No, you should not continue operating the dishwasher while F26 is active. The error indicates a motor has reached an unsafe temperature and its safety cut out has tripped. Running the appliance in this condition risks further motor damage or overheating. The dishwasher should remain off until the faulty motor is identified and replaced.
How much does it cost to repair a GE dishwasher F26 error?
Repair costs vary depending on which motor has failed and local labor rates. A replacement circulation or drain motor for a GE dishwasher typically costs between $80 and $200 for the part alone. If you hire a technician, total repair costs including labor generally range from $150 to $350. Identifying the correct failed motor before ordering parts helps avoid purchasing an unnecessary component.

Related GE dishwasher codes

All GE dishwasher codes
View all 222 GE dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass