The answer first
On a Commercial Care dryer the first question is which type of machine you have, because the answer decides where the water is coming from. Condensate systems leak from the tank, the pump and the hose; vented machines leak from a cold duct run. The ranking is the part worth reading twice.
What you are seeing and hearing
- Water in the base of the machine or under the front — The sump or the tank path is overflowing rather than being pumped away.
- Drips from the vent hose or where it joins the wall — Moist air condensing in a cold duct run, which is an installation problem rather than a fault. Do it with the machine in its normal state rather than after you have already changed something.
- The tank is full every cycle and still the floor is wet — Water is escaping on the way to the tank, usually at a hose connection or a cracked housing. Note whether it happens every time or only sometimes, because that distinction narrows the list.
- A damp patch behind rather than under the machine — That puts the source at the duct connection or the wall rather than inside the cabinet. Do this before the check below it, because the answer changes what that one means.
Causes, ranked for this appliance
- A blocked condensate pump or sump — First on a condensing machine, because water that cannot be lifted into the tank ends up in the base and then on the floor. It earns this slot because it explains the whole symptom rather than part of it.
- A disconnected or split drain hose — Second because it is the one part that gets moved every time the machine does, and a hose off its spigot empties onto the floor. Rule it in or out before moving on, because the next check assumes an answer to this one.
- Condensation in a cold or over-long vent duct — Moist air cooling inside a long duct run condenses and runs back, which looks exactly like a machine leaking. If this is the cause, the evidence for it is usually visible rather than inferred.
- A loose hose clip inside the cabinet — Vibration loosens clips over years, and a joint that weeps only under pump pressure is hard to see.
What to look at first, second, third
- Establish whether the machine is vented or condensing — A condensing machine has a tank you empty; a vented one does not. It takes less time than reading about it.
- Check the drain hose along its whole length — Look for it lying off its spigot, kinked, or resting where it cannot drain. The position matters more than the name: work the order rather than the one you have heard of.
- Feel the vent duct for cold sections — A long run through an unheated space condenses heavily, which explains water with nothing broken. Give it a moment rather than glancing; the thing you are looking for is not always obvious.
Owner-side procedure
- Empty the tank, dry the base and run a test cycle — A clean, dry start is the only way to see where new water comes from and when. Do it with the machine empty rather than mid-load.
Tools: towelAbout 25 min
- Shorten or insulate a long vent duct — Less duct in cold space means less condensation. Do this before the check below it, because the answer changes what that one means.
Tools: duct tapeAbout 30 min
- Check the machine is level and sitting square — A machine leaning forward sends any internal water to the front edge rather than the sump. Do not force anything; the plastic in a modern appliance breaks rather than bends.
Tools: adjustable spannerAbout 20 min
- Stop at this point: what follows needs a meter on a live circuit — Past this point the checks need test gear and the training to use it safely.
Power, water and hands
Safety
Unplug the machine or switch off its breaker before any panel comes off. A capacitor can hold a charge after the power is off, so the wait matters as much as the switch. Lint is fuel; take it out of the machine rather than pushing it further along the duct. Do not alter anything that stops the machine running with a door open.
When to stop and call
What separates half an hour of your time from a service visit: if you can reach it without opening the cabinet, do it; the base of the machine is a technician job. Everything on the owner side of it can be done in an afternoon. Call straight away if you smell scorching, see browning around a terminal, or find lint packed against a heat source.
Nearest pages of this class
Generalized information
Read this as the general answer for a Commercial Care dryer, generalized across families on purpose.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
