Truma Gas Filter
The Truma gas filter is designed exclusively for filtering aerosols (liquid droplets) in the gas stream of liquid gas systems in caravans and motorhomes, separating up to 99.9% of oily substances. It protects pressure regulators, valves, and pipelines from oil contamination and should be serviced during every gas cylinder change.
View official manual on manufacturer's site ↗Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Possible Cause | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|---|
Leaks at threaded connections or damaged O-ring | Dirt or damage to the seal (O-ring) or the upper edge of the filter bowl, or incorrect tightening of the connections. | — | Seek assistance from a specialised workshop (Truma Service Partner) and check the tightness of the union nuts using the screwing aid device. | DIY Check / Tech Fallback |
Malfunctions in gas pressure regulators or valves due to oil | Presence of oil or other external substances in the liquefied gas system. | — | Contact the Truma service center or an authorized service partner. Note: No warranty is assumed for oil-related malfunctions if the filter was not used or maintained properly. | Professional Intervention Required |
Failure of gas pressure regulators, valves, or other components due to oil contamination | Caused by contaminants in the liquid gas. | — | There is no warranty claim for such defects. | DIY Safe |
LEAK_DEFECT_DAMAGE | The gas filter exhibits a fault or is not leak-tight. | — | Don't use it. If the O-ring or the sealing face is dirty or damaged, take it to a specialist workshop (a Truma Service Partner). | Professional Intervention Required |
Leak, fault or damage | A faulty gas filter mustn't be put into use or commissioned. | — | Get in touch with a specialist workshop (a Truma Service Partner) or the Truma Service Centre. | Professional Intervention Required |
Damaged filter element | The permanently screwed-in filter element in the housing is damaged. | — | Replace with a spare filter element (part no. 50020-00576) using only original Truma spare parts. | DIY Safe |
Any form of leakage, defect, or damage | The device poses a safety hazard or may cause a leak | — | Don't use the appliance - take it to a specialist workshop (a Truma Service Partner) for help if this happens. | Professional Intervention Required |
Loose screw connection | Twisting the gas filter at the regulator connection may cause a loose connection | — | When operating the gas filter (replacing the filter pad), the gas filter must always point downwards; use the tightening aid to check whether the union nut is securely tightened. | DIY Safe |
Failure of gas pressure regulation systems, valves, or other components | Oil or other foreign matter in the LPG has caused damage. | — | Ensure the Truma gas filter is installed and properly maintained. Note that there is no warranty given for failures caused by oil contamination if the filter is not maintained or for gaseous residual materials like phthalates. | DIY Safe |
Frequently Asked Questions
Q: How often should the filter pad be replaced?
Fit a new filter pad each time you change the gas cylinder.
Q: Does the filter element screwed into the filter housing need to be replaced regularly?
No, the screwed-in filter element in the housing does not need to be replaced regularly. It only needs to be replaced if it is damaged (spare part art. no. 50020-00576).
Q: In what types of vehicles is the gas filter permitted to be used?
The gas filter is only approved for fitting and use in caravans (class O) and motorhomes (class M1), and only where the gas system has been installed to EN 1949.
Q: What type of gas is supported?
Liquefied petroleum gas LPG (propane / butane).
Q: What replacement filter should be used?
Only use original Truma replacement filters (part no. 50680-01).
Q: Does the Truma gas filter filter gaseous residues like plasticizers?
No, the Truma gas filter is not designed to filter gaseous residues such as phthalates (plasticizers), which exist in vapor form in the gas stream.