The short answer
Water inside the cabinet is nearly always the defrost drain, and where that drain is depends on which kind of cabinet you own. A direct-cool cabinet drains from the base of the cold plate in the fridge liner. A frost-free cabinet drains from a trough under the evaporator behind the rear freezer panel. Both end in the same evaporation tray on top of the compressor, and both block for the same reason.
What you are seeing
- A pool of water under the crisper drawers — Note: The defrost drain is blocked and meltwater is collecting at the lowest point of the liner instead.
- Water running down the inside of the back wall of the fridge — Note: On a frost-free cabinet, the freezer drain trough has iced over and the melt is finding another route.
- Water on the floor at the front whenever the door is opened — Note: The cabinet is tilted forward, so meltwater travels across the liner floor instead of to the drain.
- A puddle behind the cabinet — Note: The evaporation tray on top of the compressor is cracked, displaced or overflowing.
- One large flood after a power cut or a deliberate defrost — Note: Expected behaviour rather than a fault: everything melted at once and the tray could not keep up.
- Beads of water on the outside of the cabinet near a door edge — Note: Room air reaching a cold surface through a seal leak, which is a door problem.
Ranked causes on this brand
- Defrost drain blocked at the base of the cold plate or the freezer trough — Why this rank: First because it is the only water path the cabinet has, it sits at the lowest point where debris settles, and nothing in the machine cleans it.
- Frost-free defrost water refreezing in the drain trough — Why this rank: Second because on a frost-free cabinet a marginal defrost circuit lets ice build in the trough itself, so the drain is blocked by ice rather than by debris and it returns after every clearing.
- Cabinet tilted forward on its feet or in its housing — Why this rank: Third: the liner floor is nearly flat with only a shallow fall to the drain, so a small forward tilt sends water over the front lip.
- Evaporation tray cracked, displaced or overwhelmed — Why this rank: Fourth because it is the only cause that puts water behind the cabinet rather than inside it, which makes it easy to place.
- A one-off melt after a power interruption or a defrost — Why this rank: Fifth because it produces an alarming volume of water once and never repeats, which is what distinguishes it from everything else here.
- Door seal leaking, multiplying the meltwater the drain has to handle — Why this rank: Last as a cause in its own right, but it is what turns a partly restricted drain into a flooding one and it is why leaks recur after clearing.
What to check, in order
- Find exactly where the water is: under the crisper, down the inside back wall, on the floor at the front, or behind the cabinet — Why: Four locations, four different causes, and this single observation does most of the diagnosis.
- Look at the back wall of the fridge liner and at the rear freezer panel — Why: This tells you which kind of cabinet you have and therefore which drain to look for.
- Put a spirit level on the top of the cabinet — Why: A forward tilt explains front-lip water at once and also explains why a marginal drain never clears itself.
- Find the drain hole and see whether water is standing in it — Why: A visibly full drain channel confirms the blockage without any dismantling.
- Pull the cabinet out and look at the tray on top of the compressor — Why: This is the only cause that puts water behind the appliance, so it either explains everything or nothing.
Checks you can do safely
- Mop the water up, dry the area and note over the next day exactly where it returns and whether it is inside the cabinet or on the floor. — Tools: towels — Time: a day of observation
- Put a spirit level on the cabinet top and adjust the feet until it sits dead level or a hair back, so meltwater runs towards the drain rather than the door. — Tools: spirit level, adjustable wrench — Time: twenty minutes
- Unplug the cabinet, empty it, and flush warm water through the drain hole with a turkey baster until it runs freely. Do not push wire into the hole. — Tools: turkey baster, warm water, towels — Time: half an hour
- Let the cabinet defrost completely with the doors open and towels underneath, so the drain starts from a clean state. — Tools: towels, shallow trays — Time: eight hours or overnight
- Pull the cabinet clear, seat the evaporation tray flat on the compressor, clear any debris under it and check it for cracks. — Tools: torch — Time: twenty minutes
- Close each door on a strip of paper at four points and correct any point where the strip slides out freely. — Tools: a strip of paper — Time: a quarter of an hour
Before you open anything
Safety
Unplug the refrigerator before clearing a drain, removing a rear freezer panel or handling the evaporation tray, and mop standing water off the floor before restoring power. The start relay and overload sit on the compressor pins at mains potential whenever the unit is plugged in. Never push wire, a coat hanger or a skewer into a drain hole: refrigerant tubing is bonded directly behind the liner and a puncture ends the cabinet. Never chip ice from a plate or an evaporator with a tool. Get help before moving a top-heavy cabinet. Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. — Id: unplug-before-service A refrigerator holds food safely at 40 °F (4 °C) or below. — Id: fridge-40f
Where the service line falls
The drain runs clear, the cabinet is level and the seals pass a paper test, and water still collects inside every day. A frost-free cabinet re-ices its drain trough within days of being cleared, which points at the defrost heater or its cut-out rather than at a blockage. Water appears behind the cabinet with an intact and correctly seated evaporation tray. The liner is cracked at the base of the drain, which lets water into the insulation and cannot be sealed reliably. You find an oily residue with the water rather than clean or stale meltwater, which points at the sealed system and is regulated work.
Nearest pages
What this page does not cover
This page is generalized across families and models and covers both the direct-cool drain at the base of the cold plate and the frost-free trough beneath the evaporator. It does not describe any one model family, and it does not cover cabinets with a plumbed water dispenser or ice maker, which add supply connections that leak in other places entirely. For parts sourcing and for telling one production generation from another, work from the manufacturer-entity page rather than this one: the same platform was sold under several group badges, and a parts desk cross-references by platform rather than by the name on the door.
Links down: - [Fagor Refrigerator: Not Cooling or Not Freezing](/blog/fagor-refrigerator-cooling-failure) - [Fagor Refrigerator: Door, Latch or Seal Fault](/blog/fagor-refrigerator-door-seal)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
