Error code · Cooktop & Rangetop

Dacor Modernist Cooktop Code F0: Control Boards Not Communicating

High · stop use, call now

Code: F0
Appliance: Cooktop & Rangetop
Brand: Dacor
Warranty: 30-day workmanship

What F0 means

F0 on a Dacor Modernist induction cooktop, such as the DTI30M977BB or DTI36M977BB, means the main control board and the sub board have stopped communicating with each other. Without that link the cooktop cannot manage power and heating safely, so it shows F0 and may not heat or respond to the touch keys at all. Owners often notice it right after a power flicker or when they first switch the cooktop on.

Common causes of F0

Ribbon or wire connection between the boards loose
Power surge or brownout upsetting the boards
The sub board failing
The main control board

✓ One safe check you can try

1. Restart the cooktop with the POWER key. 2. If F0 continues, disconnect power to the cooktop for more than 30 seconds, then restore it. 3. If the code returns after that, stop using the cooktop and schedule service. Do not open the cooktop or touch its wiring.

! Why to stop there

Whether the two boards lose contact at the connection or inside one of them
Whether a power problem in the house triggered the code
Which board is needed, priced in writing before we start

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Cooktop & Rangetop codes

U (pan symbol)Dacor Discovery Cooktop U Pan Symbol: No Pan Detected UPDacor Induction Cooktop Code UP: Supply Voltage Out of Range C0Dacor Modernist Cooktop Code C0: Top Sensor Open C1Dacor Modernist Cooktop Code C1: Top Sensor Short C1 (range cooktop)Dacor DOP30T940IS Range Cooktop Code C1: Burner Running Too Hot C2Dacor Induction Cooktop Code C2: IGBT Sensor Problem d0Dacor Modernist Cooktop Code d0: Key Held Down E2Dacor Induction Cooktop Code E2: Element Overheated

F0F0 questions

What are the main and sub boards?

The main board controls power and heating, and the sub board handles the user controls. F0 means the two stopped exchanging information, so the cooktop locks itself out.

Can a power outage cause F0?

It can. A surge or a brownout can leave the boards out of step. Disconnecting power for more than 30 seconds lets them restart, and if F0 still appears, the boards or their link need testing.

How long will the repair take?

We confirm the failing board and part availability, then give you a written price. Call us or fill out the online form to schedule service, and the work carries a 30-day workmanship warranty.

Book a visit

Still seeing F0?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 231-9708