A complaint, not a parts verdict
“One cooking zone will not heat” can point towards pan recognition, a zone control or a heating component. These are assessment areas for a hob; they do not identify a failed part on your particular De Dietrich model.
One unresponsive zone and a completely inactive hob are different patterns. For induction, report which pan was used, without assuming cookware is necessarily the cause.
The detail to keep with this complaint
Write down which zone is affected and whether other zones work. Use observations already made during normal operation. Keep the setting and the result in separate sentences so they can be compared.
The hob technology and zone selected
Pan, power level and any control-lock symbol
Whether other zones behaved normally
Reconstruct the sequence
Write a short before-and-after account. The last normal action and the first abnormal response are often more useful than an approximate appliance age.
Which De Dietrich version is it?
Use an accessible model record or existing paperwork. Do not lift a fitted hob, reach around terminals or remove a drawer solely to search for electrical labels.
Keep the whole identification together with “one cooking zone will not heat”. A manufacturer name, an approximate purchase year or a familiar fascia does not establish that two hob versions have the same internal parts.
Describe the pattern over time
If the change is intermittent, record when it happened during ordinary use. Do not keep starting an unsafe appliance to make the fault recur for an engineer.
What is around the appliance?
Tell us whether the hob is above an oven, drawers or a cupboard and mention visible glass damage. Leave mounting clips, seals and wiring untouched.
Discuss the next step
Include your complete postcode and the De Dietrich product details. Suitable work, charges, appointment availability and parts are confirmed individually. For the wider appliance context, return to the De Dietrich hob guide.
Bring the details together
Complete only what you know. The notes remain in this page until you copy them; opening the booking service does not send these notes automatically.