KitchenAid · Dishwasher
KitchenAid Error Code 1-2
User interface software corruption. The control panel firmware is out of sync.
Caution — professional help advisedWhat the KitchenAid 1-2 code means
The 1-2 error code on a KitchenAid dishwasher is a diagnostic fault reported by the appliance's main control board. In plain terms, it signals user interface software corruption. The control panel firmware is out of sync. When this code appears, the dishwasher pauses its current cycle as a safety measure to prevent water damage, electrical strain, or mechanical wear, and waits for the homeowner or a technician to inspect the underlying cause. Understanding exactly what the KitchenAid 1-2 code points to — and the most common parts and behaviors that trigger it — lets you decide whether this is a quick five-minute fix you can perform yourself, or a job that warrants a professional service call.
Tools and supplies you'll need
Gather the following items before you start so you don't have to stop mid-repair with the appliance partially disassembled. Having every tool within arm's reach also reduces the risk of forcing a stuck part, which is a common cause of secondary damage during DIY appliance repairs.
- Phillips screwdriver
Comprehensive step-by-step troubleshooting & fixes
Follow each step in order. Before you begin, unplug the appliance from the wall outlet or flip the dedicated breaker so the unit is fully de-energized. Keep a towel and a shallow pan within reach in case any residual water escapes during the repair.
- 1
Cut power at the breaker for
Cut power at the breaker for 10 minutes to clear the volatile memory.
- 2
Restore power and start a Rinse
Restore power and start a Rinse Only cycle to reinitialize the panel.
- 3
If the code persists, replace the
If the code persists, replace the user interface (touch panel) assembly — a model-specific part.
This repair can involve high-voltage wiring, sealed refrigerant or gas lines, or heavy moving parts inside the dishwasher. Always disconnect the appliance from its power source at the breaker, shut off any associated water or gas supply, and let internal components cool before working on them. If you are not fully confident in any step, stop and contact a licensed appliance technician — the cost of a service call is far lower than the cost of an electrical shock, gas leak, or flooded floor.
Always disconnect power before servicing any appliance.
After the repair: how to verify the 1-2 code is gone
Once you've completed the repair, restore power to the KitchenAid dishwasher and run a short test cycle — a quick rinse, drain, or self-diagnostic mode, depending on your model — to confirm the 1-2 fault has cleared. Watch the display for the first two to three minutes: if the code immediately reappears, the underlying component has not been fully resolved and you should recheck the part you serviced, inspect the wiring harness for a loose connector, or replace the related sensor. If the cycle completes normally and no fault is shown, your dishwasher is safe to return to regular use. To prevent the 1-2 code from coming back, schedule a monthly check of debris filters, drain lines, door gaskets, and supply hoses — the vast majority of repeat-fault service calls trace back to gradual buildup that could have been cleared in five minutes.
Frequently asked questions about KitchenAid 1-2
Is it safe to keep using my dishwasher while 1-2 is showing?
No. The control board has paused the cycle specifically to prevent further damage. Continuing to run the appliance can compound the issue and turn an inexpensive DIY fix into a major repair.
Will resetting the appliance clear the 1-2 code?
A power-cycle reset (unplugging for 5–10 minutes) may silence the code temporarily, but if the underlying fault is still present the code will reappear on the next cycle. Always perform the diagnostic repair above rather than relying on a reset alone.
How much does a professional charge to fix this?
In most U.S. metros, a licensed appliance technician charges between $120 and $300 for a diagnosis-plus-repair visit on this type of fault, with the higher end reflecting parts replacement. If the steps above resolve the issue, you'll typically save the full service-call fee.