--- title: "Diagnostic visit" description: "Liebherr diagnostic visit — we work out what is actually wrong before anybody quotes a part." url: "https://liebherrmiami.support/services/diagnostic-visit/" date_modified: "2026-08-27" --- # Liebherr diagnostic visit ### What a diagnostic is on a cold-only make There are no burners to light and no wash cycle to run. What there is: a sealed system, a defrost circuit, a fan or two, a set of sensors, a control board, and doors that either seal or do not. That short list is why a proper diagnostic on this equipment is mostly measurement and access rather than trial and error. ### The three numbers on the plate Inside the cabinet, on the left-hand side, Liebherr prints a Type Designation, a Service Number and an Appliance/Serial Number. The maker asks for all three together with anything showing in the display. Having them ready before the visit is the single cheapest thing you can do to shorten it. ### What we check before naming a part - Whether the appliance is reporting a problem or behaving as documented - The condenser and the airflow around it, which the manual names first for both “running too long” and “not cold enough” - Door seals, which cost temperature stability before they cost anything else - Whether the cabinet is packed tightly enough to stop air moving - The breaker, on anything that has been dead since a power event What this involves The plate read first — three numbers, not one Signals told apart from problems before any part is named Credited toward the repair What it has been doing, in your words Not only what it is doing now. A cabinet that drifted over a month and one that alarmed the night the power came back are rarely the same thing, and the second often ends at the breaker with no part at all. Read the plate — inside, on the left-hand side Liebherr asks for three numbers together: Type Designation, Service Number and Appliance/Serial Number. Anyone who works on these regularly reads all three before touching anything, because the parts differ between cabinets that look identical behind the same panel. Write down whatever is in the display, before clearing it If there is a number between F1 and F5, it goes in the notes exactly as shown. The maker publishes the number and not its meaning, so the number is evidence rather than an answer — and clearing it before it is written down throws that evidence away. Tell a signal apart from a problem Two dashes in a freezer display, an alarm after loading warm food, a power-failure light after an outage: all documented, all normal, none of them a repair. Sorting these out first is most of what makes a first visit short. Establish how it comes out Ten of the refrigerators in this line and every one of the freezers are built into joinery behind your own cabinet front. That decides the length of the appointment as much as the part does, and we would rather know at the start. Measure, then decide A sensor is a resistance at a known temperature. A fan is a current and an airflow. A sealed system is pressures and temperatures across the circuit. The causes that cost nothing come first — a condenser nobody has cleaned, a door that no longer seals, a cabinet packed too tight for air to move. 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 cabinet is still inside the maker’s own sealed-system position, that is the answer you get and the visit ends there. What a diagnostic is on a cold-only make There are no burners to light and no wash cycle to run. What there is: a sealed system, a defrost circuit, a fan or two, a set of sensors, a control board, and doors that either seal or do not. That short list is why a proper diagnostic on this equipment is mostly measurement and access rather than trial and error. The three numbers on the plate Inside the cabinet, on the left-hand side, Liebherr prints a Type Designation, a Service Number and an Appliance/Serial Number. The maker asks for all three together with anything showing in the display. Having them ready before the visit is the single cheapest thing you can do to shorten it. What we check before naming a part Whether the appliance is reporting a problem or behaving as documented The condenser and the airflow around it, which the manual names first for both “running too long” and “not cold enough” Door seals, which cost temperature stability before they cost anything else Whether the cabinet is packed tightly enough to stop air moving The breaker, on anything that has been dead since a power event ### 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. ### The display shows F2. Can you tell me what that is before you come? No, and neither can anybody else honestly. Liebherr prints F1 to F5 and does not publish what they mean — its own manual says only to have the number available when you contact service. Pages that decode them cite nothing. What the number does is narrow the visit, because it tells us the appliance has registered something rather than that you are imagining it. ### The alarm is going off but the food is frozen solid. Do I still need a visit? Possibly not, and that is worth five minutes on the phone first. A freezer alarm sounds when the compartment is not cold enough, and it also sounds after warm food goes in or after a long door-open while you rearranged things. It stops on its own once the cause has gone. If it has been alarming with the door shut and nothing new inside, then it is telling you something and a visit is the right call. ### I have two Liebherr cabinets side by side. Is that one call or two? One call. A Side-by-Side pair is two appliances behind two matching doors, but they are in the same kitchen and looked at on the same visit — and a second appliance on one visit costs far less than a second visit, because travel and setup are the bulk of what a service call costs. --- **[Read full article: Diagnostic visit](https://liebherrmiami.support/services/diagnostic-visit/)**