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.
Technical Specifications
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
Operational Fault | 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 |
Operational Fault | 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 |
Operational Fault | 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. | Operation is not permitted. Visit a specialist workshop (Truma Service Partner) if there is contamination or damage to the O-ring or the sealing surface. | Professional Intervention Required |
Leak, fault or damage | Commissioning must not be performed and defective gas filters must not be used. | Contact a specialist workshop (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 |
Operational Fault | The device poses a safety hazard or may cause a leak | Do not operate the device. If this problem occurs, please visit a specialist workshop (Truma Service Partner) for assistance. | 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 |
Operational Fault | Damage caused by oil contamination or other foreign substances in the liquid gas. | 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?
The filter pad must be replaced every time the gas cylinder is changed.
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 approved exclusively for installation and operation in caravans (class O) and motorhomes (class M1), provided that the installation of the gas system complies with the EN 1949 standard.
Q: When must the filter pad be replaced?
The filter pad must be replaced with every gas cylinder change.
Q: What type of gas is supported?
Liquefied petroleum gas LPG (propane / butane).
Q: When should the filter cartridge be replaced?
The filter cartridge must be replaced every time the gas cylinder is changed.
Q: In what types of vehicles is the gas filter approved?
The gas filter is only approved for installation and operation in caravans of vehicle class O and motorhomes of vehicle class M1, provided the gas installation complies with EN 1949.
Q: What type of gas should be used?
Liquefied petroleum gas LPG (propane / butane).
Q: How often should the filter insert be replaced?
The filter insert must be replaced if residues are found on the insert or filter bowl, or at the latest every 2 years.
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.