Possible empty cylinder, closed valve, triggered hose rupture protection, or triggered reset button.

Check fill level of gas cylinder, verify cylinder valve is open, check hose rupture protection, check if reset button was triggered and reset if necessary, and ensure quick-acting shut-off valves on gas appliances are open.

Gas flow is reduced or completely interrupted due to freezing temperatures.

Use Truma EisEx regulator heater for uninterrupted gas supply at low temperatures.

← Back to Appliance Directory

Truma • Gas Pressure Regulator

Truma MonoControl

The Truma MonoControl is a safety gas pressure regulator designed for operation with liquid gas (propane / butane) in the gas phase. It reduces the high pressure of a gas cylinder down to the 30 mbar operating pressure required by the gas appliances in approved vehicles.

Technical Specifications

Gas Pressure Mbar30 mbar

Weight Kg500 g

Master Troubleshooting & Diagnostics Matrix

Error Code / Indicator	Symptom / Meaning	Step-by-Step DIY Fix	Suggested Actions
`Operational Fault`	Possible empty cylinder, closed valve, triggered hose rupture protection, or triggered reset button.	Check fill level of gas cylinder, verify cylinder valve is open, check hose rupture protection, check if reset button was triggered and reset if necessary, and ensure quick-acting shut-off valves on gas appliances are open.	DIY Safe
`Operational Fault`	Gas flow is reduced or completely interrupted due to freezing temperatures.	Use Truma EisEx regulator heater for uninterrupted gas supply at low temperatures.	DIY Safe

Frequently Asked Questions

Q: How do I reset the reset button if it has triggered?

Press the black reset button into the housing using the T20 Torx pin of the screw aid and gently turn it in an anti-clockwise direction until it engages.

Q: Can gas appliances be operated while driving?

No, because the MonoControl does not have an integrated crash sensor to prevent uncontrolled gas escape during an accident in accordance with UN-ECE regulation 122.