The short answer
Water around a Costway compact dryer is usually condensate that has overflowed or a vent hose dripping rather than a plumbing failure, because the machine has no water supply. On a ventless machine the tank or the drain hose is the first place to look; on a vented machine it is the hose itself condensing in a cold room.
What you are actually seeing
- Water under the machine after a cycle — Means: on-page
- Water dripping from the vent hose or its outlet — Means: on-page
- The condensate tank overflowing before the cycle ends — Means: on-page
- Water inside the drum at the start of a cycle — Means: on-page
- A wet floor only in cold weather — Means: on-page
- The machine stops with a full tank warning and no water outside — Means: different-fault — Go to: costway-dryer-drainage-failure
- Damp clothes with no water anywhere — Means: different-fault — Go to: costway-dryer-cleaning-performance
- Body: Match what you see before you take anything apart. Water under the machine after a cycle. Water dripping from the vent hose or its outlet. The condensate tank overflowing before the cycle ends. Water inside the drum at the start of a cycle. A wet floor only in cold weather. Some near-miss symptoms belong on a different page: The machine stops with a full tank warning and no water outside points at a condensate path that needs emptying, covered on costway-dryer-drainage-failure; Damp clothes with no water anywhere points at a drying performance problem, covered on costway-dryer-cleaning-performance.
Causes, ranked for this machine
- A condensate tank that has overflowed or is not seated — Why this rank: First because on a ventless machine the tank is the only place the water goes, and it is emptied by hand
- A drain hose that has come loose from its outlet or lies in a way that lets water escape — Why this rank: The hose is positioned by the owner and moved whenever the machine is moved
- A vented hose condensing in a cold room or a cold wall, and dripping back — Why this rank: Explains water that appears only in cold weather and only near the hose
- A blocked condenser forcing water to find another path — Why this rank: A condenser that cannot pass air backs water up inside the machine
- A failed seal or a cracked condensate housing — Why this rank: Last because it needs a part and everything above it is free
- Body: Ranked for a compact or portable dryer on a household outlet: either a vented machine with a short flexible hose, or a ventless machine that collects condensate in a tank or sends it down a drain hose. Most likely: A condensate tank that has overflowed or is not seated. First because on a ventless machine the tank is the only place the water goes, and it is emptied by hand. Next most likely: A drain hose that has come loose from its outlet or lies in a way that lets water escape. The hose is positioned by the owner and moved whenever the machine is moved. Third: A vented hose condensing in a cold room or a cold wall, and dripping back. Explains water that appears only in cold weather and only near the hose. Fourth: A blocked condenser forcing water to find another path. A condenser that cannot pass air backs water up inside the machine. Fifth: A failed seal or a cracked condensate housing. Last because it needs a part and everything above it is free.
What to check, in order
- Establish whether the machine is ventless with a tank, ventless on a hose, or vented
- Empty and reseat the condensate tank
- Check the drain hose is secure at its outlet and falls all the way
- Look at the vent hose run for condensation dripping back
- Body: Each check rules out the causes above it. First, establish whether the machine is ventless with a tank, ventless on a hose, or vented. Second, empty and reseat the condensate tank. Third, check the drain hose is secure at its outlet and falls all the way. Fourth, look at the vent hose run for condensation dripping back.
Checks you can safely make yourself
- Dry the floor completely, run a cycle and note whether water appears at the tank, the hose or the vent outlet — Tools: towel, notepad — Time estimate: one cycle
- Remove the condensate tank, empty it and refit it until it seats fully — Tools: none — Time estimate: a few minutes
- Check the drain hose is secure at its outlet and falls continuously with no rise or kink — Tools: torch — Time estimate: a quarter of an hour
- Unplug the machine, remove and clean the condenser and its filters, then refit them correctly — Tools: brush, water — Time estimate: half an hour
- On a vented machine, insulate or shorten a hose that runs through a cold space and check whether the dripping stops — Tools: none — Time estimate: half an hour
- Body: Checks an owner can make with the machine unplugged or by watching a short cycle. Step one: Dry the floor completely, run a cycle and note whether water appears at the tank, the hose or the vent outlet. Tools: towel, notepad. Time: one cycle. Step two: Remove the condensate tank, empty it and refit it until it seats fully. Tools: none. Time: a few minutes. Step three: Check the drain hose is secure at its outlet and falls continuously with no rise or kink. Tools: torch. Time: a quarter of an hour. Step four: Unplug the machine, remove and clean the condenser and its filters, then refit them correctly. Tools: brush, water. Time: half an hour. Step five: On a vented machine, insulate or shorten a hose that runs through a cold space and check whether the dripping stops. Tools: none. Time: half an hour.
Safety first
Safety
Unplug the machine before removing a condenser or reaching behind the machine, and dry the floor before restoring power. Never run a heated dryer with the condenser or the lint filter removed. Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. unplug-before-service
Where the owner fix ends
Call for a warranty claim or a technician when the tank is seated, the drain hose falls correctly, the condenser is clean and the vent hose is not condensing, and water still appears. A cracked condensate housing or a failed seal is inside the cabinet.
Nearest pages of the same kind
Generalized information
This page is generalized across the Costway compact dryer line. Vented compact tumble dryers, ventless condensing machines and spin extractors share the ranking above but almost none of their parts, and this page does not cover a specific model or control revision. Family- and model-specific pages, where they exist, are linked below.
Links: - [Common COSTWAY Dryer Problems](/blog/costway-dryer-problems) - [COSTWAY Dryer: Abnormal Noise or Vibration](/blog/costway-dryer-abnormal-noise) - [COSTWAY Dryer: Does Not Clean or Dry](/blog/costway-dryer-cleaning-performance) - [COSTWAY Dryer: Controls, Display or Error Code](/blog/costway-dryer-control-fault)
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
