Fixing Truma AquaGo Problems: Maintenance & Troubleshooting Tips

Facing issues with your Truma AquaGo water heater can be quite a headache, especially when you’re looking forward to a warm shower after a long day outdoors. It’s one of the most reliable water heaters for RV enthusiasts, but like any appliance, it can run into problems. In this article, you’ll discover the common issues that may arise with your Truma AquaGo, from inconsistent water temperatures to unexpected shutdowns.

You’ll learn how to identify the signs of trouble and the steps you can take to troubleshoot them. Whether you’re dealing with error codes, maintenance challenges, or just seeking preventative tips to keep your water heater in top condition, we’ve got you covered. Stick around to get the insights you need to ensure your Truma AquaGo continues to provide that comforting hot water whenever you need it.

Common Problems with Truma AquaGo Water Heater

Inconsistent Water Temperatures

You’re expecting a steady stream of hot water in your RV; however, the Truma AquaGo can sometimes deliver inconsistent water temperatures. This variability in temperature can be due to several factors:

  • Scale build-up in the heat exchanger
  • Clogged water filters
  • Faulty temperature sensors

Unexpected Shutdowns

Imagine stepping into your shower, only to be greeted by cold water halfway through. Unexpected shutdowns are not just inconvenient; they point to possible underlying issues such as:

  • Low gas pressure
  • Exhaust blockages
  • Overheated water heater

Error Codes

Your Truma AquaGo communicates through error codes. Being familiar with what each code indicates is vital for rapid troubleshooting. Some of the most common error codes and their meanings include:

Error Code Meaning
E89 Exhaust temperature too high
E90 Combustion air temperature too high
E118 Insufficient water flow

Maintenance Challenges

Regular maintenance is key to avoiding problems. Here are typical maintenance challenges that you might face:

  • Difficulty accessing internal components for cleaning or repair
  • Replacing sacrificial anodes to prevent corrosion

Preventative Tips

Taking proactive steps can help prevent issues with your Truma AquaGo water heater:

  • Flushing the system regularly to remove scale
  • Checking and cleaning filters and vents
  • Ensuring gas lines are clear and properly connected

By staying on top of these common problems and their corresponding preventive measures, you’ll be better prepared to handle any issues that may arise with your Truma AquaGo water heater.

Inconsistent Water Temperatures: What Could Be the Cause?

When you’re facing the annoyance of inconsistent water temperatures in your Truma AquaGo water heater, it’s crucial to pinpoint the root causes. Improperly managed systems often lead to temperature fluctuations. Let’s dive into the potential problems that may be affecting your water heater’s performance.

Firstly, Check Your Gas Supply. Inadequate gas pressure or gas flow can lead to uneven heating. Make sure your gas bottles are full and the regulator is functioning correctly. This is a common issue that many overlook.

Second on the list is to Look at the Water Flow. If the water flow is too low, the AquaGo might not trigger the heating process efficiently. Ensure that there’s no obstruction in the pipes or faucets and that the water filters are clean.

Another critical area to inspect is the Burner Assembly. Dirt and debris can accumulate here, causing uneven ignition and thus, fluctuating temperatures. A clean burner helps maintain a steady flame for consistent heating.

Electrical Connections also play a role. Faulty or loose wiring can interfere with the operation of the heater’s control board. This can lead to erratic temperature control which might be noticeable when you’re expecting a hot shower.

Lastly, Check the Mixing Valve. This component blends cold water with hot to deliver your desired temperature. If it’s defective or incorrectly set, you may experience sudden changes in water temperature during use. Ensuring this valve is correctly calibrated is essential for stable water temperatures.

There are several factors that can lead to inconsistent water temperatures in your Truma AquaGo:

  • Check your gas supply for pressure issues
  • Ensure proper water flow and clean filters
  • Clean the burner assembly regularly
  • Inspect electrical connections for any faults
  • Verify the mixing valve is functioning correctly

Each of these components is crucial for your water heater to deliver hot water when and where you need it. Regular inspection and maintenance of these elements will help you avoid the inconvenience of temperature fluctuations and enjoy a more reliable hot water supply.

Unexpected Shutdowns: Troubleshooting Tips

When your Truma AquaGo water heater unexpectedly shuts down, it can be both inconvenient and confusing. Fortunately, there are some troubleshooting steps you can take to identify and rectify the problem.

First, check the power supply. Look for tripped circuit breakers or blown fuses as they can easily cause a shut down. Always ensure that your water heater is connected to a reliable power source and that all switches are in the ‘on’ position.

Next, consider the LP gas supply. If your unit runs on propane, a low gas level can interrupt the heating process. Regularly inspect the gas lines for leaks or blockages and keep an eye on the gas level.

The water heater’s venting system deserves attention too. A blocked or improperly installed vent can lead to shut offs as a safety measure. Clear any obstructions and double-check the installation against the manufacturer’s guidelines.

Temperature settings can also cause unexpected shutdowns. If the water temperature is set too high, the unit might turn off to prevent overheating. Adjust the temperature to a safe level and monitor the heater’s response.

Water quality is another factor. Sediments from hard water can accumulate and interfere with normal operation. A water softener or regular descaling can be the answer to this issue.

Lastly, don’t overlook the electronics. Faulty control panels or sensors can trigger shutdowns. Inspect the connections, look for signs of damage or wear, and consider getting a professional’s help for repairs or replacements.

By systematically checking these aspects, you can often diagnose and fix the cause of your Truma AquaGo water heater’s unexpected shutdown without needing a costly callout.

Decoding Error Codes: Solutions to Common Error Messages

If your Truma AquaGo water heater flashes an error code, don’t panic. These codes are your first clue in troubleshooting a problem. Below are the common error codes you might encounter and their corresponding solutions.

  • E89: Indicates low water pressure. Ensure your water pump is on and check for kinks in hoses that could restrict water flow.
  • E90: Suggests a problem with the exhaust flow. Check the vent for blockages and confirm that the exhaust is fitted properly.
  • E228: Points to an issue with the LP gas supply. Verify that your gas valves are open and the gas bottle has sufficient levels.

For Electrical Concerns:

  • E234: Signals a problem with the 12V supply. Check the battery and ensure all connections are secure and free from corrosion.
  • E1XX Series: Generally related to electronic failures. These require resetting the power or checking the wiring.

Water Heating Specific Errors:

  • E122: Indicates overheating. Look to reset the thermal cutoff and consider whether the water circulation might be restricted.
  • E14: A water temperature sensor fault. Inspect the sensor connections for proper contact.

Error codes E300 to E324 typically relate to problems with the unit’s internal electronics. In such cases, it’s often best to consult with a professional or refer to the Truma AquaGo manual for a more comprehensive reset and diagnostics procedure.

Remember, attending to these issues promptly can prevent further damage to your water heater and ensure continued comfort and convenience during your travels. Always observe safety precautions when performing any maintenance or diagnostics on Truma AquaGo water heaters.

Maintenance Challenges: How to Keep Your Water Heater in Top Condition

Maintaining your Truma AquaGo water heater involves regular servicing to prevent common problems. You’ll want to stay ahead of potential issues by following a disciplined maintenance routine.

Start by regularly checking the burner assembly; ensure it’s clean and free from debris. A dirty burner can cause inefficient heating and is often behind inconsistent water temperatures. Scheduled cleanings can prevent buildup and combustion problems.

Inspect the gas supply lines for signs of wear and tear. Any damage could lead to inadequate gas flow, which directly impacts the water heater’s performance. Have any faulty components replaced by a certified technician to ensure safety and efficiency.

Monitoring water flow is crucial. Low water flow can trigger shutdowns or temperature fluctuations. Clean your water lines and filters to avoid these interruptions. It’s recommended to do this at least once a year.

Electrical connections also need attention. Corroded or loose wires can result in malfunctions or even complete shutdowns. Check connections periodically and address any issues promptly.

Lastly, pay attention to the water quality that runs through your heater. Hard water can cause scale buildup, potentially damaging the mixing valve and other internal components. Consider installing a water softener to mitigate these risks.

Remember, neglecting regular maintenance not only shortens the lifespan of your water heater but also compromises your comfort. By attending to these key areas, you’ll keep your Truma AquaGo water heater functioning smoothly for years to come.

Preventative Tips: Ensuring Your Truma AquaGo Works Efficiently

Keeping your Truma AquaGo water heater in top shape isn’t just about troubleshooting when problems arise; it’s also about implementing preventative maintenance measures. By taking proactive steps, you can significantly reduce the risk of issues and ensure that your water heater operates smoothly.

Regular Servicing Is Key

Just like your car, your Truma AquaGo heater requires regular servicing to perform its best. You’ll want to:

  • Schedule annual check-ups with a certified technician.
  • Replace parts prone to wear and tear before they fail.
  • Consult your user manual for specific maintenance timelines.

Address Water Quality

Hard water can wreak havoc on your water heater, leading to mineral buildup that can affect performance. To combat this:

  • Install a water softener to protect your system.
  • Perform regular descaling procedures as recommended by the manufacturer.

Monitor and Maintain Component Health

For consistent, efficient operation, certain components need to be in good condition. Pay attention to:

  • The burner assembly, which should be clean and free of debris.
  • The gas supply lines, ensuring they are not kinked or leaking.
  • Water flow sensors and filters that can impact temperature consistency if clogged.

By prioritising these preventative measures, you’ll not only safeguard your comfort but also potentially save money on costly repairs down the road. Remember, caring for your Truma AquaGo is an investment in the longevity and reliability of your water heating system.


You’ve now got the know-how to tackle the most common Truma AquaGo water heater glitches. Remember that staying on top of regular maintenance is key to avoiding those pesky temperature inconsistencies and unexpected shutdowns. By keeping an eye on your gas and water supplies cleaning your burner assembly and checking those electrical connections you’ll ensure your water heater runs smoothly. Don’t let neglect cut your comfort short; take preventative steps to maintain your Truma AquaGo and enjoy a steady flow of hot water whenever you need it. Stay vigilant and your water heater will thank you with reliable service for years to come.