Start here
Read this profile as a triage guide rather than a repair manual. On these models the useful owner work is cleaning and observing; the rest belongs to a qualified engineer by law as much as by prudence.
The problem classes on these models
- Gas smell or suspected leak — Not a diagnostic matter. If you smell gas: do not switch anything on or off, leave the building, and call the gas utility or the emergency number from outside. No separate page covers it in this set, so the first move is simple: leave the building and call the gas utility from outside — do not look for the leak yourself.
- A hob burner that will not light — Clicking with no flame is usually a wet or fouled igniter, or a cap and crown that have been refitted out of position. Nothing else here is devoted to it. Start by doing this much: dry the burner completely and reseat the cap and crown squarely.
- Pan supports rock or the burner cap sits proud — A cap seated off its register spreads the flame unevenly and scorches the pan on one side. Nothing else here is devoted to it. Start by doing this much: lift the cap off and reseat it squarely on its crown.
- A flame that lifts, yellows or goes out — Blocked ports, or a flame-failure device that needs a few seconds of flame before the knob is released. Nothing else here is devoted to it. Start by doing this much: clear the ports with a pin, then hold the knob in a few seconds longer.
- Yellow or lifting flames on one burner — Colour is the diagnostic here. A crisp blue cone is right; yellow is not, and it is not an owner adjustment. It has no page of its own on this line; the opening move is to stop using that burner and arrange a visit.
Causes, most likely first
- A hob burner that will not light — First, and by a distance. The most common complaint on this line, and usually an owner fix with a dry cloth and careful reassembly.
- Yellow or lifting flames on one burner — Second on this list. Colour is the diagnostic here. A crisp blue cone is right; yellow is not, and it is not an owner adjustment.
- A flame that lifts, yellows or goes out — Next after those two. Blocked ports, or a flame-failure device that needs a few seconds of flame before the knob is released.
- Gas smell or suspected leak — Fourth in the ranking. Not a diagnostic matter. If you smell gas: do not switch anything on or off, leave the building, and call the gas utility or the emergency number from outside.
Models in the S family
Reference| Model number | Family key |
|---|---|
| S3 DFM | bertazzoni:gas-stove:s |
| S3 DFS | bertazzoni:gas-stove:s |
| S3 GAS | bertazzoni:gas-stove:s |
| S7 DFM | bertazzoni:gas-stove:s |
| S7 DFS | bertazzoni:gas-stove:s |
| S7 GAS | bertazzoni:gas-stove:s |
The fault profile
General guidance| Problem class | Relative frequency on this line |
|---|---|
| Hob ignition and burner assembly | highest |
| Oven temperature and thermostat | second |
| Door, seal and hinges | third |
| Burner ports and flame quality | fourth |
| Gas train, valves and safety devices | lowest |
Based on: No counted sample underlies this table; the ranking is ordinal and is stated relative to the other rows.
Where the owner line is
Get an engineer if the oven cannot be brought into line with a thermometer. Calibration on a gas oven is not an owner adjustment.
Nearby pages
SC
Sarah Chen
Lead Appliance Repair Technician · 12 years experience
EPA 608 UniversalNASTeC Certified
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
