A leaking generator is usually down to the drain cup, the hose clip, or the drain valve rather than the tank itself. A split or cracked tank does happen occasionally, and can follow a hard frost, but it's the least common cause.
Applies to: steam showers
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Compatible with many shower cabin brands including
Quick diagnosis
If your steam shower is showing these symptoms:
- Water pooling under or around the generator
- The drain cup underneath looks wet or damp
- Water draining continuously rather than only after a session
- A crack or split visible on the tank itself
Likely causes, most likely first
- A cracked drain cup. The white plastic cup underneath the generator is visibly cracked or damp around the join.
- A loose hose clip. Water is coming from a hose connection rather than the tank body.
- A stuck-open drain valve. Water drains continuously, not just after a session ends.
- A split tank. The crack is on the tank body itself, and can follow a hard frost if the generator’s been exposed to freezing temperatures.
Likely cause
Most leaks trace back to the drain cup underneath the generator, which can crack over time, or a hose clip that's worked loose at a connection. Where water drains continuously rather than just after use, debris in the drain valve is usually stopping it from closing properly, or the control panel is reading the cycle as finished when it isn't. A split tank is much less common, and can follow a hard frost, particularly if the generator is fitted somewhere unheated.
Check this first
- Look underneath the generator at the white plastic drain cup for cracks.
- Check the hose clips at each connection are tight.
- Note whether the leak is constant or only happens after a session.
Which part fits your cabin
| Brand | Model / range | Part | Confidence |
|---|---|---|---|
| Vidalux | Essence 800, Essence 900, Essence 1000 | Water Outlet – Drain Fitting for Steam Generator | Checked against Vidalux’s own product records |
Other Vidalux models may also use this part.
How to identify your part
- The drain cup is the white plastic fitting underneath the generator tank. There’s no dedicated replacement for the cup itself in our catalogue, so a cracked one usually means a new generator rather than a spare part.
- The drain solenoid is the part that opens to let the tank empty. If it’s stuck open and draining continuously, that’s the part to replace, not the cup.
- Check the hose clip at each connection before assuming either part has failed.
Parts that fix this problem
The following replacement parts usually fix this issue.
Not sure which replacement part you need? Send us a photo and we will help identify the correct replacement.
How to fix it
- Isolate the power to the generator before inspecting it
- Check the drain cup underneath for cracks. There’s no direct replacement for the cup itself, so a cracked one usually means a call to us or a new generator
- Tighten or replace any loose hose clips at the connections
- Reset the power if the drain valve seems stuck open, then check whether it clears
- Replace the drain solenoid if it keeps draining continuously after a reset
- Check the tank body itself for a crack or split, particularly if it’s been exposed to frost
Also described as
- Steam shower
- Steam shower cabin
- Hydro massage shower
When to call a professional
If the tank itself is cracked or split, the generator needs replacing rather than repairing. Check the control-pad code on your unit (TR019, MK117B, MK117BQ and similar) so the replacement generator is matched correctly. Isolate the power at the fused spur and don't run it again until it's sorted, and use a qualified electrician for the disconnection and refit.
