Lunar Toilets & Sanitation
(Venus, 2019 Model Year)
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
N/A | The Thetford cassette toilet's waste holding tank won't come out. | Blade is (partly) open | Fully close the blade. | DIY Safe |
N/A | Thetford cassette toilet blade does not move | Blade is blocked | Loosen the cap from the pour-out spout. | DIY Safe |
N/A | Thetford cassette toilet waste holding tank level indication does not work | The level-indication mechanism inside the waste holding tank has stuck. | Remove the mechanism from the waste holding tank, then rinse it clean under a running tap. | DIY Safe |
N/A | Thetford cassette toilet waste holding tank leaks | Seal is dry or worn | Spray the seal with a seal lubricant, and replace it if it's worn. | DIY Safe |
Frequently Asked Questions
Q: How do I empty and prepare the Thetford cassette toilet waste holding tank?
To get it ready: take the tank out through the service door, stand it up with the pour-out spout facing upward, remove the cap, add the correct amount of waste-holding tank additive plus roughly 3L of water, then refit the cap and slide the tank back in. To empty it: wheel the tank to an authorised disposal point, take the cap off, hold the vent button down with your thumb while tipping the spout downward to empty out, add about 5L of water, give it a gentle shake to clean it, empty again, rinse the float under a tap, fold the handle back in, and slot the tank back into the toilet.