The short answer
A dryer that leaks water is normal on a ventless machine and alarming on a vented one — a Blomberg dryer collects every litre it removes from the laundry, so a leak means that water is escaping before it reaches the tank. The tank seat, the condensate channel and the optional drain hose are the three places to look.
What you are seeing
- A puddle under the front of the machine after a cycle
- Water running down the inside of the door glass and onto the floor
- The tank compartment is wet when the tank is withdrawn
- Water appearing only when a drain hose kit is fitted
- The tank is empty and the machine reports it full while the floor is wet
- A near-miss symptom: damp clothes with no water anywhere, which is a drying-performance problem
- Body: Where the water shows tells you which of the three: A puddle under the front of the machine after a cycle. Water running down the inside of the door glass and onto the floor. The tank compartment is wet when the tank is withdrawn. Water appearing only when a drain hose kit is fitted. The tank is empty and the machine reports it full while the floor is wet. A near-miss symptom: damp clothes with no water anywhere, which is a drying-performance problem.
Causes, most likely first
- The tank not seated fully — Why: if the tank is proud of its seat the pump discharges into the cabinet rather than into the tank, and this is the most common leak on a ventless dryer.
- A blocked condensate channel overflowing — Why: lint dams the channel behind the plinth filter and the water backs up and spills forward, which is why the leak is at the front.
- A drain hose kit fitted incorrectly — Why: a hose that is too high, kinked, or not pushed fully into its port lets the pump push water into the cabinet instead of the standpipe.
- A perished tank seal — Why: the seal at the tank seat hardens with heat over years and then weeps whenever the pump runs.
- Condensation escaping past the door seal — Why: a door seal distorted by an overloaded drum lets moist air out where it condenses on the cold door front and runs to the floor.
- A cracked sump or a failed pump housing — Why: least common, and it produces a leak that is present regardless of tank position or hose route.
- Body: Ranked for a machine that condenses its own water: First, The tank not seated fully: if the tank is proud of its seat the pump discharges into the cabinet rather than into the tank, and this is the most common leak on a ventless dryer. Second, A blocked condensate channel overflowing: lint dams the channel behind the plinth filter and the water backs up and spills forward, which is why the leak is at the front. Third, A drain hose kit fitted incorrectly: a hose that is too high, kinked, or not pushed fully into its port lets the pump push water into the cabinet instead of the standpipe. Fourth, A perished tank seal: the seal at the tank seat hardens with heat over years and then weeps whenever the pump runs. Fifth, Condensation escaping past the door seal: a door seal distorted by an overloaded drum lets moist air out where it condenses on the cold door front and runs to the floor. Sixth, A cracked sump or a failed pump housing: least common, and it produces a leak that is present regardless of tank position or hose route.
What to check, in order
- withdraw the tank, empty it, and push it firmly home; then run a cycle and see whether the floor stays dry.
- open the plinth, clear the filter and the condensate channel behind it, since a dammed channel spills forward.
- if a drain hose is fitted, check its height, its route and that it is fully seated in its port.
- if the machine still leaks with a seated tank, a clear channel and no hose, the fault is inside and needs a technician.
- Body: Test the tank path first, because that is where the water is: First, withdraw the tank, empty it, and push it firmly home; then run a cycle and see whether the floor stays dry. Second, open the plinth, clear the filter and the condensate channel behind it, since a dammed channel spills forward. Third, if a drain hose is fitted, check its height, its route and that it is fully seated in its port. Fourth, if the machine still leaks with a seated tank, a clear channel and no hose, the fault is inside and needs a technician.
Checks you can do yourself
- Switch off at the breaker, withdraw the condensate tank and empty it — Tools: none — Time estimate: a few minutes
- Wipe the tank compartment dry and check the seal at the seat for hardening or splits — Tools: cloth, torch — Time estimate: a few minutes
- Push the tank fully home until it seats, then dry the floor and lay paper towel across the front — Tools: paper towel — Time estimate: a few minutes
- Open the plinth, withdraw the filter and clear any lint mat sitting in the condensate channel — Tools: cloth — Time estimate: a few minutes
- Run one normal cycle and check the paper towel to see whether and when water appears — Tools: none — Time estimate: an hour or more
- Body: Work through the water path in order: Switch off at the breaker, withdraw the condensate tank and empty it (none; a few minutes). Wipe the tank compartment dry and check the seal at the seat for hardening or splits (cloth, torch; a few minutes). Push the tank fully home until it seats, then dry the floor and lay paper towel across the front (paper towel; a few minutes). Open the plinth, withdraw the filter and clear any lint mat sitting in the condensate channel (cloth; a few minutes). Run one normal cycle and check the paper towel to see whether and when water appears (none; an hour or more).
Safety first
Safety
Unplug the appliance or switch off its breaker before removing any panel. A capacitor can hold a charge after the power is off. Water on the floor under a dryer sits directly beneath its electrical connection, so isolate at the breaker before mopping. Do not tip the machine to look underneath: on heat-pump models that can move oil into the sealed circuit. unplug-before-service
When to stop and call a technician
These belong to a technician: The floor is wet with the tank correctly seated and the channel clear. Water appears with no drain hose fitted and an empty, seated tank. The tank seal is split or the seat is damaged. The leak is accompanied by a tank-full warning that will not clear. The floor is wet with the tank correctly seated and the channel clear Water appears with no drain hose fitted and an empty, seated tank The tank seal is split or the seat is damaged The leak is accompanied by a tank-full warning that will not clear
Nearest pages of the same kind
What this page does not cover
This page is generalized across every dryer sold under the Blomberg name: it separates neither the heat-pump models from the condenser models and one control generation from another, and it names no individual model. Where a family- or model-specific page exists it is linked here and it outranks this one for that machine; at present no page beneath this one narrows to a single family, so treat the ranking above as the brand-level pattern rather than a reading of your serial plate. For the other faults that turn up on this machine, start from Common Blomberg Dryer Problems.
Related pages
- Common Blomberg Dryer Problems
- Blomberg Dryer: Abnormal Noise or Vibration
- Blomberg Dryer: Does Not Clean or Dry
- Blomberg Dryer: Controls, Display or Error Code
- Blomberg Dryer: Cycle Will Not Run or Complete
- Blomberg Dryer: Door, Latch or Seal Fault
- Blomberg Dryer: Will Not Drain
- Blomberg Dryer: Electrical, Fire or Gas Hazard
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
