What is happening, in three sentences
On the PDR group almost all leaks are condensate that has gone somewhere other than where it was meant to go. The machine makes water every time it defrosts, and the only question is whether that water reached the drain, overshot the pan, or never got out of the cabinet. None of those is a sealed-system fault.
What the owner sees
- Water on the kitchen floor at the front of the cabinet — Either the pan has overflowed or cracked, or condensate is running down the outside of the door.
- A steady drip that does not stop — Steady rather than cyclic points at a supply connection, and that one is worth isolating immediately.
- Water pooling under the drawers inside the cabinet — The signature of a blocked defrost drain: the melt has nowhere to go, so it collects at the lowest point inside.
- A layer of ice under the bottom drawer — Water sitting in the channel and freezing where the air is coldest.
- NEAR MISS — water plus a cabinet that is no longer cold — That combination is a cooling fault with melt as its symptom, and the cooling article is the right place to start.
Causes, most likely first on PDR models
- Defrost drain blocked — Every cycle melts the frost off the evaporator and sends it down a small drain to a pan underneath. On PDR this is where to start, because the alternative first checks all need the cabinet moved or a panel off and this one does not.
- Door seal letting warm damp air in — A gasket that no longer seals admits room air, and that air gives up its moisture on the first cold surface it meets. Second here, and it is the rank most sensitive to how the cabinet is used — a unit opened all day sees this far sooner than one that is not.
- Water supply line, its connection or the fill valve — Only models plumbed for water have this cause at all, and where it exists it is the one that matters most: a supply leak is continuous rather than cyclic and it does not stop on its own. Third: real, but it usually announces itself with something the first two causes do not produce, so the earlier checks will have already pointed at it.
What to check first, second, third
- Dry everything first — You cannot tell a new leak from an old puddle. Dry the floor and the inside, then come back in a day and look at what has returned and where.
- Find the drain opening and check it takes water — It sits at the base of the compartment. A spoonful of warm water poured in should disappear; if it sits, the drain is the fault.
- Test the seal with a strip of paper at four points — A strip that pulls out without resistance shows where the air is getting in, and that spot is usually where the water is worst.
- If the cabinet is plumbed, dry the fitting and watch it — A fitting that is wet again within minutes is the leak. Close the shutoff before doing anything else.
Safety before diagnosis
Safety
Unplug the appliance or switch off its breaker before removing any panel; a capacitor can hold a charge after the power is off. Nothing on this page requires the sealed system to be opened, and nothing on it should be read as permission to do so: the tubing is under pressure, and cutting or unbrazing it is licensed work with licensed tools.
Models in the PDR family
Reference| Model number | Family key |
|---|---|
| PDR36L34G | avanti:refrigerator:pdr |
| PDR50L34G | avanti:refrigerator:pdr |
| PDR75L34G | avanti:refrigerator:pdr |
When to call a technician
Stop and call when the next step would be a panel, a meter or a gauge. On a cabinet this size the components sit close together and a probe in the wrong place shorts something that was not broken when you started.
The rest of this family's faults
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
