--- title: "Diagnostic visit" description: "The appliance repair diagnostic fee explained: what the visit buys on equipment that reports nothing, and why it comes off the bill." url: "https://bertazzonimiami.support/services/diagnostic-visit/" date_modified: "2026-08-27" Appliance type: "Built-in coffee makers, Cooktops and rangetops, Dishwashers, Freezer columns, Microwaves, Range hoods and ventilation, Ranges, Refrigerators, Wall ovens, Wine cellars" --- # Bertazzoni diagnostic visit ### Why the visit starts with a diagnosis The same symptom has several ordinary causes that sit hundreds of dollars apart, and only one of them is yours. A burner that will not light is spark, sensing or gas. An oven that runs hot is a sensor long before it is a control. A fridge that has gone warm is a fan or a damper long before it is a compressor. Measuring is what turns “it is not working” into a repair with a figure on it. ### What is different about diagnosing this make Most brands on this kind of site hand you a code table. This one does not. Its dishwashers and its induction tops report real codes; its gas ranges, gas ovens and hoods report nothing whatsoever. That is not a shortcoming in the appliance — it is a design decision from a company that has been building gas cookers since 1882 — but it does mean the diagnosis is done with a meter and a flame rather than with a display. ### What you can do before we arrive If there is a code, write it down exactly, letters included, and do not clear it. If there is not, note the three things that matter most: what it did, when it started, and whether it is intermittent. Photograph the model plate rather than transcribing it — on these machines the letters and digits run together and one character changes which part fits. ### What the visit costs The diagnostic starts at $95 and comes off the bill when the repair goes ahead. The repair itself is quoted from what the diagnostic finds, confirmed on site and agreed with you before anything is opened. What this involves Measured rather than guessed — resistance, current, temperature, airflow The free causes checked first, before any part is named Credited toward the repair What it has been doing, in your words Not only what it is doing at that moment. An appliance that drifted over a month and one that stopped the night the power came back are rarely the same problem, and the second often ends with a minute at the breaker and no part at all. Read whatever there is to read — and on this make there is often nothing The dishwashers and the induction tops announce themselves and we write the code down exactly, before anything is cleared. Everything else — the gas ranges, the gas ovens, the hoods — has no display and no code, so the description you gave on the phone is what the visit starts from. Establish how it comes out A real part of the diagnosis rather than an afterthought. A refrigeration column behind your own cabinet front, a wall oven in a tall housing, a rangetop set into stone: each decides the length of the appointment as much as the part does, and we would rather know at the start than halfway through. Measure, then decide A sensor is a resistance at a known temperature. An element is a current under load. A burner is a flame that holds or does not. The causes that cost nothing come first — a filter, a condenser grille, a clearance the installation never had, a burner cap sitting proud, a control lock. A figure before the work Parts, labor and what is included, written down and agreed before anything is opened. If the honest answer is that the machine is still inside the maker's own warranty, that is the answer you get and the visit ends there. Why the visit starts with a diagnosis The same symptom has several ordinary causes that sit hundreds of dollars apart, and only one of them is yours. A burner that will not light is spark, sensing or gas. An oven that runs hot is a sensor long before it is a control. A fridge that has gone warm is a fan or a damper long before it is a compressor. Measuring is what turns “it is not working” into a repair with a figure on it. What is different about diagnosing this make Most brands on this kind of site hand you a code table. This one does not. Its dishwashers and its induction tops report real codes; its gas ranges, gas ovens and hoods report nothing whatsoever. That is not a shortcoming in the appliance — it is a design decision from a company that has been building gas cookers since 1882 — but it does mean the diagnosis is done with a meter and a flame rather than with a display. What you can do before we arrive If there is a code, write it down exactly, letters included, and do not clear it. If there is not, note the three things that matter most: what it did, when it started, and whether it is intermittent. Photograph the model plate rather than transcribing it — on these machines the letters and digits run together and one character changes which part fits. What the visit costs The diagnostic starts at $95 and comes off the bill when the repair goes ahead. The repair itself is quoted from what the diagnostic finds, confirmed on site and agreed with you before anything is opened. ### Is the diagnostic fee credited toward the repair? Yes. It starts at $95 and comes off the bill when you go ahead with the work, so on a job we carry out it is not an extra line. ### My range shows no error at all. Is that a problem for you? No, it is normal on this make and we plan for it. The gas ranges and ovens have nothing to read out. What replaces a code is description, and five answers narrow a gas range further than any code table would: does it spark, does it light, does it stay lit on low, is the flame blue and tight or yellow and lazy, and did it change suddenly or drift over months. ### I have a whole kitchen from this maker. Is each appliance a separate call? No, and on this make it matters more than most, because ranges and hoods are usually bought together and much of the rest is built in. A second and third appliance looked at on the same visit costs far less than a second and third visit — travel and setup are the bulk of what a service call costs. Say what else is in the kitchen when you book, even if only one thing is misbehaving. ### What if I decide not to go ahead? You pay the diagnostic fee and nothing else. The visit, the testing and the written scope have happened either way, and you leave knowing what is wrong and roughly what it would take to put right. ### My appliance is new. Should I be calling you at all? Check your paperwork first, and we would rather you did. If the machine is still covered by the maker, use that channel — it costs you nothing and it is the right route. We are independent and we are not it. --- **[Read full article: Diagnostic visit](https://bertazzonimiami.support/services/diagnostic-visit/)**