Uploaded September 2025 | Updated September 2026, 1 week ago
Learn how to properly perform a gas pressure test on your Girard tankless water heater with this step-by-step guide. A gas pressure test helps ensure that your RV tankless water heater is operating safely and efficiently, giving you consistent hot water during your travels.
In this video, we walk you through the process of pressure testing the manifold on your Girard unit. You’ll see how to locate the pressure testing screw on the front of the water heater, remove it with a Phillips screw bit, and connect a manometer for accurate readings.
We’ll also demonstrate how to adjust the thermostat to both the highest and lowest settings to check the gas pressure levels. At the highest setting, you should see a pressure reading around 7.8 inches of water column. At the lowest setting, the expected reading is about 1.5 inches of water column. These measurements confirm whether your RV tankless water heater is functioning within the correct range.
Once the test is complete, you’ll learn how to properly re-secure the screw to finish the process. Following these steps will help maintain the reliability of your water heater and prevent performance issues while on the road.
Whether you’re new to performing maintenance on your RV systems or just need a quick refresher, this tutorial provides the essential steps you need to know. Keeping your RV tankless water heater in top condition ensures you’ll always have hot water ready when you need it.
Shop our store at lippert.com/rv-camping/appliances/water-heaters/tankless
For technical resources and support, visit support.lci1.com/, and don’t forget to subscribe to our channel!
#lippert #girard #rvwaterheater #tanklesswaterheater
Learn how to properly perform a gas pressure test on your Girard tankless water heater with this step-by-step guide. A gas pressure test helps ensure that your RV tankless water heater is operating safely and efficiently, giving you consistent hot water during your travels.
In this video, we walk you through the process of pressure testing the manifold on your Girard unit. You’ll see how to locate the pressure testing screw on the front of the water heater, remove it with a Phillips screw bit, and connect a manometer for accurate readings.
We’ll also demonstrate how to adjust the thermostat to both the highest and lowest settings to check the gas pressure levels. At the highest setting, you should see a pressure reading around 7.8 inches of water column. At the lowest setting, the expected reading is about 1.5 inches of water column. These measurements confirm whether your RV tankless water heater is functioning within the correct range.
Once the test is complete, you’ll learn how to properly re-secure the screw to finish the process. Following these steps will help maintain the reliability of your water heater and prevent performance issues while on the road.
Whether you’re new to performing maintenance on your RV systems or just need a quick refresher, this tutorial provides the essential steps you need to know. Keeping your RV tankless water heater in top condition ensures you’ll always have hot water ready when you need it.
Shop our store at lippert.com/rv-camping/appliances/water-heaters/tankless
For technical resources and support, visit support.lci1.com/, and don’t forget to subscribe to our channel!
#lippert #girard #rvwaterheater #tanklesswaterheater
