The short answer
Water inside a Bizt RN refrigerator and water under it are two different faults with two different first checks. Inside and under the bottom drawer means the defrost drain; on the floor at the back means the supply side; on the floor at the front means the door, the drain pan or a path the water has followed from either. This page works in that order. The RN key covers more than one build, and for this fault the difference shows in whether your unit has a fan behind the freezer back wall.
What the owner actually sees
- A puddle inside, beneath the crisper — Often with a thin sheet of ice under the drawer as well.
- Ice building under the lowest freezer basket — It rebuilds within days of being chipped out, which confirms the reading.
- A puddle that appears at the door line — Check whether the floor is wet only after the door has been open.
- A drip at the back, near the connections — This is the one leak that continues whether the unit runs or not.
- Condensation on the cabinet or the door frame — A seal reading, and on a humid day partly a normal one.
- NEAR MISS — water only after defrosting it by hand — Dry it and watch for a day before diagnosing anything.
Causes, ranked for the RN build
- The defrost drain is blocked with ice or debris — It ranks first wherever the water shows up inside the cabinet rather than behind it.
- A supply fitting, filter head or inlet valve is dripping — It ranks high because it leaks under pressure, so it does not wait for a defrost cycle.
- The drain pan is cracked, displaced or overflowing — Mid-list, and it rises when the water is on the floor with a dry cabinet inside.
- The door seal or the door alignment is letting warm air in — It ranks above the sealed causes because it is cheap, common and visible, and because it makes every other leak worse by adding meltwater.
- An internal line, the evaporator tray or the fill tube inside the freezer — Last, because it is the one reading that cannot be confirmed without a panel coming off.
Check in this order, and why
- Dry everything and find where water appears first — Dry it completely, wait a day, and look again rather than guessing from a spread puddle.
- Look for a water line at the back — No line means the supply cause is off the list entirely, which halves the work.
- Check the defrost drain and its trough — Ice sitting in the trough with water in front of it is the blocked-drain reading confirmed.
- Check the drain pan underneath — A displaced or cracked pan explains a wet floor with a dry cabinet.
- Test the door seal along all four sides — A paper strip should drag everywhere; a seal that has taken a set makes meltwater the drain then has to carry.
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. Leave the door switch and its wiring exactly as they are: it cuts the fan for a reason, and a unit that runs with the door open ices the evaporator faster than it cools the food.
Where the owner job ends
Call when the drain has been cleared and refills, when the leak is behind a panel, or when the water is at a pressurised fitting you cannot dry and watch. The condition is simple: if fixing it means opening the cabinet or working on the supply beyond the shut-off, it is a call. Switch the supply off at the valve first if water is arriving faster than a towel can take it.
Other faults covered for the RN models
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
