--- title: "Your Freezer Was Fine All Winter and Started Frosting in June" description: "Why does my freezer have frost all of a sudden? Frost appearing in a frost-free freezer in summer: what humidity does, the four real causes, and why manually…" url: "https://jennairmiami.support/blog/why-a-freezer-frosts-up-in-summer-and-not-in-winter/" date_modified: "2026-08-25" Category: "Common Problems" --- # Your Freezer Was Fine All Winter and Started Frosting in June ## Why does my freezer have frost all of a sudden? Nothing Broke in June This is one of the most common calls we take between June and October, and the sentence is almost always the same: *it was completely fine all winter.* That is usually true, and it is also the diagnosis. A Miami summer puts more water into the same kitchen air than a Miami winter does, and a freezer that coped in January is being asked to remove several times as much of it in August. On a JennAir the machine in question is often a panel-ready freezer column, which makes the door seal and the panel behind it worth checking before anything electrical. A frost-free freezer is in a permanent argument with moisture. It makes ice on its evaporator coil continuously, and it melts that ice off on a cycle — a heater, a sensor to decide when, a control to run it, and a drain to carry the water away. As long as the cycle removes more than the door lets in, you never see frost. Every time the door opens in a South Florida August, the air that goes in carries **several times** the water it carried in February. So a cabinet whose seal is a fraction proud, or whose drain is partly closed, copes all winter and stops coping in summer. Something did not break. Something was marginal, and the season found it. ## Haze or Sheet? The distinction that decides whether this is a repair: - **A light haze on packaging** — normal. Every cabinet does it.- **A sheet of ice on the back wall** — the defrost cycle is not clearing the evaporator.- **Ice on the floor of the cabinet** — the melt has nowhere to go. That is the drain.- **Frost that returns within days of being cleared** — the cause is still there. ## The Free Check, and It Is the Commonest Cause Here Take a banknote and close it in the door. Do it at six or eight points around the perimeter, including the **hinge side**, which is where gaskets usually give up first, and the corners, which are hardest to see. Anywhere it pulls out with no resistance, warm humid air is being drawn in continuously — and in this climate that alone can outrun a perfectly healthy defrost cycle. While you are there: is anything holding the door a fraction open? A drawer not pushed home. A package sitting on a shelf edge. A bin out of position. All free, all common. And on this make there is a second version of the same answer worth knowing: most of the refrigeration here is **panel-ready**, so the door is your cabinetmaker's, hung on the appliance's hinges. Hardware that has worked loose does everything a failed gasket does, and it is a smaller job again. ## The Four Real Causes When the door is genuinely sealing, the frost is telling you about the cycle: **The defrost heater.** The element that melts the coil clear. When it goes, ice accumulates until air cannot pass, and the cabinet starts drifting warm as well as frosting. **The sensor.** What decides that it is time to run a cycle, and how long. Reading wrong, it never calls for one, or calls for one too short. **The control.** Which actually runs it. Same symptom, third part. **The drain.** The cycle runs, the ice melts, and the water has nowhere to go because the drain has iced closed. It refreezes on the cabinet floor, or finds its way out and onto yours. All four look identical from the kitchen, and all four are measured rather than guessed at. The drain is the cheapest of them and the heater the dearest, and neither is at the top of this site's price list. ## Why Manually Defrosting Is a Delay It works. That is the problem. Empty the cabinet, switch it off, let the ice melt, dry it out, and the freezer will behave for a while. What you have removed is the ice. What you have not touched is the reason the cycle stopped clearing it — so it comes back, and generally sooner than the first time, because the second round starts from a coil that is already compromised. Do it if you need the freezer working this week and the visit is Thursday. Do not do it as an alternative to the visit. ## Water Underneath Is a Different Urgency Frost inside can wait a week. Water arriving underneath the cabinet is reaching your cabinet base and your flooring, and in a built-in kitchen it does that for a long time before anybody sees a puddle on tile. If there is water under the appliance, or a dark line along the front of the plinth, that is worth a same-day call rather than a note in a diary. ## The Columns Make It Easier The standalone freezers on this make are panel-ready columns designed to stand beside a refrigerator column. If you have a pair, the diagnosis starts from a very strong position: two complete appliances sharing a wall, so whatever the frosting one is doing, the one next to it has already eliminated the house, the room and the installation. It also means the contents have somewhere to go for the day. ## What to Have Ready When You Call The model number. Whether it is a haze or a sheet. Whether there is water underneath. Whether the cabinet next to it is behaving. And whether the door passes the banknote test. We repair this equipment across Miami-Dade, Broward and Palm Beach. --- **[Read full article: Your Freezer Was Fine All Winter and Started Frosting in June](https://jennairmiami.support/blog/why-a-freezer-frosts-up-in-summer-and-not-in-winter/)**