Refrigerator Repair / Symptom Guide
Refrigerator Leaking Water — Where It Comes From & How to Stop It
Water on the kitchen floor or pooling inside the fridge is rarely the fridge "leaking" in the sense of broken glass. It's almost always one of three sources: defrost drain, water supply line, or ice maker / filter housing. Diagnosis is fast once you know where to look.
BHGS Licensed #50446 · Same-day service · $60 diagnostic credited toward repair
Common Causes
1. Clogged defrost drain
The most common cause. Defrost water normally runs through a small drain at the back of the freezer to a pan under the unit, where it evaporates. When the drain clogs (food particles, ice), water backs up and drips down inside the fridge and onto the floor.
2. Cracked or kinked water supply line
The 1/4" plastic line that feeds the ice maker and water dispenser runs from the wall valve. It can crack from age, get kinked when the fridge is pushed back, or develop pinhole leaks. Look for water trail from the back of the fridge.
3. Leaking water filter or filter housing
The filter cartridge can be installed wrong, cracked, or its O-ring damaged. Water dribbles down the door interior or pools at the bottom of the fridge compartment.
4. Ice maker overflow
A stuck water valve keeps filling the ice maker after it's full. Water overflows into the freezer, freezes on the floor of the freezer, then melts when the fridge defrosts and ends up on your kitchen floor.
5. Damaged drain pan
The plastic pan under the fridge that catches defrost water can crack with age. Water that used to evaporate now drips onto the floor.
What You Can Check Yourself
Try these in order — most take 5-10 minutes and many resolve the problem without a service call.
- 1
Locate the source
Wipe up the water, lay a paper towel where the leak appeared, and check again in 2-3 hours. Front of fridge = defrost drain or filter. Back of fridge = supply line or drain pan. Inside the freezer floor = ice maker overflow.
- 2
Check the water filter
If filter is older than 6 months or you recently replaced it, take it out and re-seat it. Make sure the O-ring is in place and clean. If filter is cracked, replace it.
- 3
Unclog the defrost drain (most common fix)
Unplug fridge. Inside the freezer, remove the back panel (a few screws). At the bottom you'll see a small drain hole. Use a turkey baster to flush with warm water and mild bleach solution. Re-assemble, plug in, run for 24h. Leak gone? Drain was clogged.
- 4
Inspect the water supply line
Pull fridge away from wall. Look at the entire length of the plastic tubing for cracks, kinks, or wet spots. If wet — line needs replacement (~$15 part, but the work is awkward).
When to Call a Pro
- →You can't find the source after 24 hours of paper-towel monitoring
- →Water comes from behind the fridge and you can't safely reach the line
- →Ice maker overflow keeps happening after replacing the filter
- →Drain pan is cracked and the unit is a built-in (Sub-Zero, Viking) — these are model-specific parts
Typical cost
$60 diagnostic. Defrost-drain clean is usually $120–$180. Supply line or pan replacement $180–$280.
Service Areas
We provide refrigerator repair service in Calabasas, Woodland Hills, Thousand Oaks, West Hills, Agoura Hills, Hidden Hills, Simi Valley, Canoga Park, Chatsworth, Topanga, Westlake Village, Oak Park, and Newbury Park, and nearby communities throughout the West San Fernando Valley.
Need a Pro Now?
Local technician, same-day service in most of LA County. $60 diagnostic credited toward your repair. 30-day warranty on every fix.