--- title: "Cellar Cooling Unit Tripping the Breaker: Causes and Fixes" description: "A cellar cooling unit tripping breaker trouble looks like a silent unit, a warm cellar in the morning, and a breaker or GFCI outlet that has snapped off…" url: "https://winecellarrepair.center/problems/cellar-unit-tripping-breaker/" --- # Cellar Cooling Unit Tripping the Breaker A cellar cooling unit tripping breaker trouble looks like a silent unit, a warm cellar in the morning, and a breaker or GFCI outlet that has snapped off, sometimes the moment the compressor tries to start. ## Collection first: cellar door shut, water near power left alone, breaker off from a dry panel A tripping breaker is urgent because the cellar warms while the unit is off, and because a trip can mean water or a short. Reset once from a dry panel; if it trips again, leave it off, keep the door shut and book. ## What it usually means. A cellar unit draws its heaviest current in the second the compressor starts, and a steady load after that for hours at a time. A breaker trips when it sees more current than its rating, and a GFCI trips when some current leaks to ground, which water inside the unit or on a cord will cause. A breaker that trips at start points toward the compressor or its start parts; one that trips after a long run points toward heat building up, often from a choked exhaust side; a GFCI that trips points toward moisture, frequently from a condensate problem. Sharing the circuit with a freezer, a dehumidifier or a space heater can overload it as well, and many makers ask for a dedicated circuit. Resetting a breaker again and again is not a fix: each trip is the circuit telling you something is wrong, and meanwhile the cellar warms, which is why this is urgent. The 5 causes, cheapest first Answer these first 01 Is it a breaker at the panel that trips, or a GFCI outlet with test and reset buttons? 02 Does it trip the instant the unit starts, after a long run, or at random times? 03 Is anything else on the same circuit, such as a dehumidifier, a freezer or lighting in the cellar? 04 Is there any water on or near the unit, its cord or the outlet? 05 Did it start after a storm, a power outage, or work on the house wiring? ## Check these before you book. Cellar cooling unit tripping breaker: 5 checks, and none of them costs anything. 01 Keep the cellar door shut while the unit is off; if the room passes about 70°F, move the most valuable bottles to the coolest dark place in the house. 02 Reset the breaker once, only from a dry panel with dry hands; if there is water near the unit or its outlet, leave it off and stay clear. 03 If it trips again, leave it off rather than resetting it a third time. ### Also worth checking - Note when it trips: at start, after a long run, or at random, and what else runs on that circuit. - Tell us the make, the model number and whether a breaker or a GFCI outlet is tripping. ## The causes, cheapest first. 5 things cellar cooling unit tripping the breaker turns out to be, from circuit shared with other loads to overheating from a choked exhaust. [The cost guide](https://winecellarrepair.center/cost/) 1. 01 no repair ### Circuit shared with other loads A cellar unit plus a dehumidifier, a freezer or a heater on one circuit can pass its limit when they all start together. The unit's manual states what it needs; moving the other loads is the first test. No repair: check it yourself 2. 02 low to moderate ### Water reaching wiring or the controller A blocked condensate drain can let water reach the unit's wiring or the outlet below it, and a GFCI sees the leak to ground at once. [Fixed by cellar condensate drain and pump repair](https://winecellarrepair.center/services/cellar-condensate-drain-and-pump-repair/) [See cellar cooling unit leaking water](https://winecellarrepair.center/problems/cellar-unit-leaking-water/) 3. 03 low to moderate ### Fan motor with a shorted winding A fan motor that has overheated can short to its frame and trip either kind of breaker as soon as it is powered. [Fixed by cellar evaporator and condenser fan repair](https://winecellarrepair.center/services/cellar-evaporator-and-condenser-fan-repair/) 4. 04 moderate to highest ### Compressor drawing too much at start A failing start component or a compressor with a shorted winding draws a surge that the breaker will not allow. It usually trips within a second of the start. [Fixed by cellar compressor and sealed system repair](https://winecellarrepair.center/services/cellar-compressor-and-sealed-system-repair/) 5. 05 varies ### Overheating from a choked exhaust A unit that cannot shed its heat draws more current as it gets hotter, and a breaker that holds in the morning can trip by afternoon. [Fixed by cellar cooling load and room check](https://winecellarrepair.center/services/cellar-cooling-load-and-room-check/) [See cellar cooling unit exhaust overheating](https://winecellarrepair.center/problems/cellar-unit-exhaust-overheating/) 6. What it costs ### Every repair on the site's cost scale, side by side Open the cost guide ## What else it could be. Most often confused with cellar cooling unit leaking water, then burning smell from a cellar cooling unit. [All problems](https://winecellarrepair.center/problems/) The collection is exposed ### Cellar Cooling Unit Leaking Water 6 causes The collection is exposed ### Burning Smell From a Cellar Cooling Unit 5 causes ### Cellar Cooling Unit Not Turning On 5 causes ### Cellar Cooling Unit Short Cycling 5 causes ## The makes it happens on. 7 makes on this site; cellar cooling unit tripping the breaker can show up on any of them. Each mark opens that make's own page. [All 7 brands](https://winecellarrepair.center/brands/) ## Cellar Cooling Unit Tripping the Breaker, where we come out. 9 metros, each with its own page. 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In hot weather the unit runs longer and hotter, especially if its exhaust side is a warm closet or garage, and it draws more current as the heat builds. A tired compressor start part also struggles more in heat. Both show up as summer trips. ### Should a cellar unit be on its own circuit? Most makers call for it. A unit that shares a circuit with other steady loads can trip it without anything being broken. The installation manual for your model lists the circuit it needs. ### Is it safe to plug the unit into another outlet with an extension cord? No. An extension cord adds heat and a weak point under a load that runs for hours, and it can hide the real cause. Leave the unit off and keep the cellar door shut until it is looked at. ### The GFCI trips but the breaker never does. What does that tell you? A GFCI trips on current leaking to ground, most often through moisture. On a cellar unit that usually means condensate reaching wiring or a cord, so we look at the drain as closely as at the electrical parts. --- **[Read on the site: Cellar Cooling Unit Tripping the Breaker: Causes and Fixes](https://winecellarrepair.center/problems/cellar-unit-tripping-breaker/)** **[Book a visit with WineCellarRepair.center](https://winecellarrepair.center/schedule/)**