The short answer for this family
On the Criterion CSBR refrigerator family a leak is nearly always melt water that has lost its path rather than water under pressure, and the melt path here is a freezer trough and tube to a pan at the compressor. This cabinet also carries a pressurised water circuit, which is the one thing here that can put water down faster than a drain fault ever will. Where the water first appears separates a drain fault from a seal fault from a supply fault. This profile generalises over the two codes below.
What this looks like on this platform
- Water on the floor at the front of the cabinet — Water at the front has come over an interior lip or under the door rather than from the back. Here that points at the dispenser or the ice chute rather than the drain, because this layout carries water in the door.
- Damp or mould at one corner of the gasket — One wet corner localises the fault: that is where the seal stands off, and it is usually the corner carrying the most door weight.
- Water pooling at the back of a shelf or running down the rear wall — Melt water that should have gone into the drain is running into the cabinet instead. That is the blocked-drain signature.
- NEAR MISS: clean water arriving fast, not slowly — Melt water arrives slowly and in small amounts. Fast clean water means a supply line, valve or filter head, and the first move is to shut the water off.
What it usually turns out to be here
- The defrost drain is blocked or frozen shut — First on any frost-free cabinet. Here the melt path is a freezer trough and tube to a pan at the compressor. The dispenser adds its own water path on top of that. Once it closes, every defrost puts melt water into the cabinet, where it freezes before the owner sees liquid.
- A supply line, inlet valve or filter head is weeping — This cause exists only where the cabinet is plumbed, and here the cabinet carries a water line to the door for ice and the dispenser, which is a pressurised circuit no other layout in this brand keeps in the door. A weep arrives faster than melt water and does not stop when the cabinet is switched off.
- Icemaker fill, fill-tube frost or a mis-seated bucket — Where the cabinet makes ice, the fill tube frosts and then overshoots, sending water down the back wall on every fill. Rule it out before dismantling anything.
Where to start, and why here
- Find where the water first appears, not where it collects — Dry everything, then watch. Floor-only, compartment-floor and rear-wall water lead to three different causes here. Confirm your own model against the table first.
- Lift out the bottom drawer or basket and look for an ice sheet — A sheet on the freezer floor, usually towards the back, means the trough has iced shut and the drain tube below it with it. Clear it fully rather than breaking the surface, because the sheet is hiding the drain you are looking for.
- Clear and test the drain path — With the power off, find the trough and flush it gently with warm water. On this platform the melt path is a freezer trough and tube to a pan at the compressor. It should take water away steadily; if it backs up, the blockage is in the tube rather than at the trough mouth.
Safety first
Safety
Water and electricity share this cabinet, so unplug it or switch off its breaker before putting a hand near a panel; a capacitor can hold a charge after the power is off. Do not pour hot water into a frozen drain to hurry it, and never chip ice off a trough or evaporator with a screwdriver: the tubing is soft aluminium and a puncture turns a drain repair into a sealed-system replacement. Mop the floor first, because a wet floor at a heavy cabinet is the injury that actually happens.
Models in the CSBR family
Reference| Model number | Family key |
|---|---|
| CSBR260M4S | criterion:refrigerator:csbr |
| CSBR290H1S | criterion:refrigerator:csbr |
When this stops being owner work
Where the line falls here is worth stating plainly. Clearing a drain, reseating a gasket, levelling the cabinet and emptying the pan are owner work. Call when water is arriving under pressure, when the drain will not clear from inside the cabinet, or when the ice sheet returns within a week, because that means something upstream is re-freezing the trough. On this platform the cabinet has to come away from the wall before most work can start, which is a two-person job on a loaded cabinet.
Other faults on these models
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
