Written by
Julian Reyes Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeControl Error (flashing display lights)
ApplianceDishwasher
Two entries, one routine
The guide prints a control error twice under Flashing Display Lights. Each time the beeper sounds with the lights, and each time the advice ends with service.
Standard sequence
Press the START/RESET pad to stop the beeper.
Give the dishwasher a moment; it attempts a reset of its own.
Begin the wash cycle again.
Call for service if the control error continues.
When the rinsing light keeps blinking
In the second entry START/RESET still quiets the beeper, yet the rinsing light stays on flashing. Service is again the instruction if that goes on.
Models in the guide
ZBD3500, ZBD3540 and ZBD3900, older Monogram dishwashers.
A control error that survives START/RESET and a fresh start is worth a call to (415) 318-7427 from anywhere around the Bay Area. Tell us which light keeps flashing, what you pressed, and the model number. Our Monogram dishwasher repair page has more.
Model compatibility: Monogram reuses codes across series and model years, so Control Error (flashing display lights) may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
A control error shows as flashing lights and a beeper; START/RESET stops the beeper, the dishwasher tries to reset, and a lasting error calls for service.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Monogram appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Drain, fill, latch and cycle faults on Monogram dishwashers, with each flashing-light message linked and a written estimate first. Estimate comes first.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your Monogram appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
