What b Means
On the Renaissance touch-control gas cooktop RNTT365GB, a “b” on a burner display means that burner is locked because it failed to light after three tries. The cooktop stops trying to protect you from unburned gas.
Common Causes of b
- Burner cap misaligned or wet after cleaning
- Igniter dirty or not sparking
- Gas supply off or low pressure
🔧 One Safe Check You Can Try
Follow Dacor’s burner reset in the manual. Before relighting, check that the burner cap and ring are seated and dry and that the igniter is clean. If “b” returns, work through the no-flame checks in the manual and then call for service.
⚠ Why You Shouldn't Go Further Than That
- Beyond cleaning and seating the burner parts, igniter and gas valve work is for a qualified technician.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.