The short answer
A Bourdeau cellar that runs but will not hold its setting is nearly always failing to reject heat through its grille. Clear it first. A heavy glass door that no longer seals and a warm room come next, and the sealed system is last.
What you observe
- The cabinet sits a few degrees above its setting — The classic symptom of a cellar with no margin left.
- The compressor runs almost continuously — Heat is arriving as fast as it is being removed.
- The plinth area feels warm to the hand — Rejected heat trapped in the opening rather than the room.
- Condensation on the inside of the glass door — Warm humid air entering past a seal that no longer closes.
- NEAR MISS - warm for a day after loading a case of wine — A cellar pulls a warm load down slowly by design.
Causes, most likely first on this brand
- A blocked or restricted grille — First by a wide margin. The grille is the only airway; a flush kickboard, a mat or a dust-furred grille stops the heat leaving and the cabinet never reaches its setting.
- A glass door that no longer seals — Second. These doors are heavy for their size, and a hinge that has settled or a gasket fouled with dust leaves a continuous gap that a low-margin cabinet cannot absorb.
- A warm room, or a warm neighbouring appliance — Third. Built-in cellars sit beside ovens and dishwashers, and a hot neighbour raises the air the cabinet must reject heat into.
- A cabinet loaded beyond its shelf plan — Fourth. Bottles stacked into the airway rather than on the shelves block the circulation the cabinet depends on.
- A sealed-system or compressor fault — Last, and the only one that is not an owner check.
Check in this order, and why
- Clear the grille completely and give it a day — The likeliest cause and the cheapest test here.
- Measure the cabinet with a thermometer rather than reading the dial — A dial is a request, not a measurement.
- Test the door seal with a sheet of paper all round — A heavy door usually fails at one end rather than everywhere.
- Check what stands beside and above the cabinet — An oven or dishwasher alongside changes the whole picture.
What an owner can safely check
- Vacuum the grille and remove anything in front of it — Include the louvres, and lift any kickboard trim sitting flush against them.
Tools: vacuum, soft brushAbout 20 min
- Put a thermometer inside for a full day — Read it after the cabinet has settled rather than an hour after a change.
Tools: fridge thermometerAbout 30 min
- Clean the door gasket and check the hinge — Wipe the gasket and its channel, and confirm the door closes itself from half open.
Tools: clothAbout 20 min
- Re-rack the bottles to the shelf plan — Nothing stacked into the air path at the back or the top.
About 20 min
- STOP HERE if it will not hold with a clear grille and a good seal — That diagnosis needs gauges.
Before you open anything
Safety
Switch the cabinet off at its breaker before removing the grille or any panel - a built-in may be hardwired, so there may be no plug to pull, and a capacitor can hold a charge after the power is off. Empty the shelves before moving a loaded cabinet, because bottles make it heavy and top-heavy and the door is a large pane. Never remove the grille and leave the cabinet running, since it also guards a moving fan.
When to call a technician
Call when the grille is clear, the door seals, the load is racked properly and the cabinet still sits above its setting. Call sooner than you might for a drinks fridge if the wine is being held long term, because a cellar a few degrees warm for months does more harm than a fridge warm for a week. Call immediately if you smell burning or see oil near the compressor.
Nearest pages of this class
What this page does not cover
This page covers the Bourdeau built-in single-zone wine cellars, which reject heat forwards through a grille. Countertop wine coolers shed heat in open air and have different limits; that page is linked below. Not included here: temperature set points, ambient ratings, clearance dimensions, shelf capacities and refrigerant charge, which differ by family.
Links: - [Brevino countertop wine cooler not getting cold enough](/blog/brevino-refrigerator-cooling-failure-2)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
