The short answer
When the F family leaks, the drain channel behind the rear panel is the first suspect and the supply line is the second. Both are checkable without tools, which is not true of the causes the brand-generic article opens with.
What you observe
- Water pooling under the crisper drawers — The classic blocked defrost drain: melt water has nowhere to go and backs into the cabinet.
- A sheet of ice on the floor of the compartment — Same fault caught later, once the pooled water has frozen.
- A crackle of ice under the drawers before any water appears — The early stage of a blocked drain, caught before the water reaches the floor.
- Water appearing a day or two after the unit was moved — A displaced drain pan or a strained supply connection rather than a drain fault.
- NEAR MISS - condensation on the outside of the doors — That is humidity and seal performance, not a leak.
Causes, most likely first on F
- Door seals and condensation — Ranked first on the F family: warm air reaching a cold cabinet has to give up its moisture somewhere, and a seal that no longer meets decides where that happens. What decides the order here is where the cold has to travel, and that is fixed for every model in the family. This moves above blocked defrost drain, which leads the brand-generic order, because this family is a single build with fixed access points.
- Water supply connection or line — Second: the supply connection is the one joint under constant pressure, so it weeps whether the appliance is running or not and the damage accrues quietly.
- Blocked defrost drain — Third: the drain on this family is a narrow channel behind the rear panel and blocks with food debris and ice within a season.
- Ice maker fill valve or its tubing — Fourth: last, and only where a module is fitted, but a weeping valve leaks continuously rather than in cycles.
- Drain pan cracked or displaced — Last: the pan sits in the machine compartment and can be knocked out of place when the unit is moved.
Check in this order, and why
- Empty the compartment and find the drain opening — It is the likeliest cause and it is visible once the shelves are out.
- Check the cabinet is level and tilted very slightly back — A cabinet leaning forward sends melt water towards the door instead of the drain.
- Flush the drain channel with warm water — It confirms the diagnosis and clears most blockages in one step.
- Test the seals with a sheet of paper around each door — Last, because it explains condensation rather than standing water.
Before you open anything
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Refrigerant work is licensed work, so leave the whole sealed system to a licensed technician, and call at once if you see oil at the compressor or smell burning.
When to call a technician
Call when the drain keeps blocking after being cleared, because that usually means the drain heater or the defrost circuit is at fault rather than the channel itself.
Other F pages
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
