Frigidaire Dishwasher Error RT
⚡ Quick Answer: The Frigidaire dishwasher RT error code indicates that the appliance has inadvertently entered a relay/triac test mode, disrupting normal wash cycles.... ✅ DIY Fixable
What Does Error RT Mean?
The Frigidaire dishwasher RT error code indicates that the appliance has inadvertently entered a relay/triac test mode, disrupting normal wash cycles. This may be accompanied by unusual noises, suggesting the drain pump could also be affected. If the RT code is displayed without the dishwasher performing its usual functions, it points to a diagnostic state rather than a direct fault. A temporary control glitch could also trigger this test code display.
Common Symptoms:
- RT code displayed on control panel without dishwasher performing a normal wash cycle
- Dishwasher appears to be in a test or diagnostic mode
Possible Causes
- Dishwasher inadvertently entered relay test mode (medium)
- Temporary control glitch triggering test code display (low)
How to Fix Error RT
DIY Fix Attempt to clear RT code via reset
- Turn off power to the dishwasher by switching off circuit breaker or unplugging if accessible
- Wait at least 5 minutes to allow control board to fully reset
- Restore power and attempt to start a normal wash cycle
Technician Only Verify control panel and board state
- Place dishwasher into diagnostic mode per service manual to confirm whether RT is actual test code vs unintended entry
- Inspect control panel connections and main control board for loose wiring or signs of failure
- Confirm that no unintended buttons or sequences are triggering diagnostic mode
Parts needed: control panel assembly, main control board
- If RT persists after attempted resets and normal operation does not resume
- If diagnostic mode appears to be unintentionally triggered repeatedly indicating control board/A UI issue
Next step
Choose the next step for RT
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
User Interface Board
Receives button or touch input and controls the appliance display and indicators.
- Typical part-only price
- $70 - $220
- DIY difficulty
- Medium
- Estimated time
- 20-60 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Main Control Board
The central brain of the appliance that controls all components, cycles, and timings.
Model-compatible Dishwasher parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dishwasher Cleaner and Descaler
Supports routine removal of mineral scale, grease, and odor. It is maintenance, not a repair for a failed pump, valve, or control.
Braided Dishwasher Inlet Hose
For replacement of an externally damaged supply hose. Verify connection size, length, and appliance installation requirements before ordering.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 60W |
|---|---|
| component | Drain Pump |
| resistance | 10-30 ohms |
| part_number | 154567401 |
| voltage_rating | 120V AC |
Common Questions
What does RT error mean on frigidaire dishwasher?
The RT error indicates the dishwasher is in a diagnostic relay test mode, disrupting normal operations.
Can I fix frigidaire dishwasher RT error myself?
Yes, you can attempt to reset the RT code by turning off the power for 5 minutes and then restoring it.
How much does it cost to fix RT error?
Estimated repair costs for the RT error range from $100 to $350, depending on the required parts.
When should I call a technician for RT?
Call a technician if the RT error persists after resets or if the diagnostic mode triggers repeatedly, indicating a control board issue.
Sources & References
- Frigidaire Dishwasher Error Code RT explained (community)
- Frigidaire Dishwasher Error Codes Troubleshooting Guide (community)
Data last verified: 2026-07-25
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