Written by
Julian Reyes Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeCLEANSENSOR Error
ApplianceDishwasher
Dark sensing light at cycle start
Pick NORMAL or POTS PANS, begin the cycle, and the sensing light never lights. The Flashing Display Lights chart in the owner’s guide files that under the name CLEANSENSOR Error.
Facts from the chart
Meaning: the CLEANSENSOR is not working.
Washing carries on regardless, because the dishwasher keeps running without the CLEANSENSOR.
A footnote adds that the light does not stay lit for the whole cycle.
The only action in the What To Do column is to call for service.
Models listed
ZBD3500, ZBD3540 and ZBD3900, part of the older Monogram dishwasher line.
Another entry from the same chart
Control error brings flashing lights and a beeper, and START/RESET is the first step.
Booking Monogram dishwasher service in the Bay Area
The dishwasher can go on washing while the CLEANSENSOR is out, but the chart still points to service. San Francisco callers can phone (415) 318-7427; say which cycle you started and that the sensing light stayed off, and quote the model number. More is on Monogram dishwasher repair.
Model compatibility: Monogram reuses codes across series and model years, so CLEANSENSOR Error 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 CLEANSENSOR error means the sensing light fails to light at the start of NORMAL or POTS PANS, and the dishwasher keeps working without it.
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.
