Written by
Lena Hartwell Appliance Care EditorPublished October 27, 2026
VERIFIED
Error codeUP
ApplianceCooktop
UP in brief
Cooktops: the Modernist induction models DTI30M977BB and DTI36M977BB.
Message: the voltage coming in is outside the acceptable window, high or low.
Range given: 208 V to 240 V.
What to check
Begin with the power connection. Only after the voltage is regulated should the cooktop be turned on again. Household supply changes are for an electrician or a technician and cannot be done from the controls.
Different messages from the same list
F0 is a communication failure inside the cooktop and A2 is the fan motor message, so neither is a supply message.
Cooktop repair in San Francisco
Should UP return after you have checked the connection, call (415) 687-5926 for Dacor work in San Francisco and the Bay Area, and read cooktop and rangetop repair. Share the code, the model number and what the connection check showed.
Model compatibility: Dacor reuses codes across series and model years, so UP 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
UP means the input voltage is too high or too low, with a manual range of 208 V to 240 V.
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 Dacor appliance?
Book a specialist visit for a clear estimate and approval before any repair.
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 Dacor appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
