Thermann Hot Water Troubleshooting: The Ultimate Go-To Guide

Rest assured, you made a brilliant choice by installing a Thermann hot water system. They’re renowned for their efficiency and reliability, particularly popular around Brisbane but all across Australia as well. Reece started it all in 2012, endeavouring to leverage proven technologies from Australia, Japan, Germany and beyond. Whether you kept things simple with an electric unit or you stepped into the future with a heat pump or solar solution, Thermann is relied on today for affordability, performance and quality. But, wait: You’re here for Thermann hot water system troubleshooting, right?

Well, even the best hot water brands hit a snag now and then. But don’t worry – there’s always a way to troubleshoot many common issues before calling in the pros. In this guide, we’ll walk you through some quick and easy fixes. So let’s dive in!:

Thermann hot water system troubleshooting guide: A few quick notes

Don’t forget, hot water systems are complicated pieces of technology. While Thermann does its best to keep things running smoothly, sometimes you need to take a closer look at what’s happening behind the scenes. Here’s what to do:

1. Thermann hot water system reset button

When your Thermann hot water system suddenly stops working, the first thing to check is whether pressing the magic Thermann hot water system reset button will do the trick. It can be a small but mighty button that saves you a lot of time and effort and money:

• Find the reset button on your Thermann system (usually located near the control panel or thermostat)
• Press and hold for a few seconds
• Wait a few minutes and try running the hot water again to see if the system starts working

If the system kicks back to life, great! If not, move on to the next step.

2. Thermann hot water not working?

Thermann hot water not working – still? Here are a few other things to check:

• Power Supply: Is your system plugged in and receiving power? Check the meter box and any tripped circuits.
• Water Supply: Is the water turned on, and does your Thermann have adequate pressure?:
• Temperature Setting: Sometimes the simplest fixes work. Ensure the thermostat hasn’t accidentally been turned down too low.

3. Thermann hot water system not heating

For a Thermann hot water system not heating as it should, maybe the problem is with the heating element or thermostat. Try:

• Checking the thermostat settings, if possible
• Check if the heating element is functioning by switching it off, waiting a few moments, and turning it back on
• For gas units, make sure the pilot light is lit

Still not getting hot water? You might have a faulty thermostat or element, which will require professional hot water repair.

4. Thermann heat pump problems

Got a heat pump hot water unit? It’s a great, progressive choice, and while Thermann heat pump problems are rare, they can still happen.

• Cold Weather Issues: Has it been unusually cold? Maybe the heat pump is struggling – so you may need to switch to a backup or boost mode. Or maybe you just need to wait a while for it to catch up.
• Airflow Obstructions: Is anything blocking the air intake or fan? Restricted airflow can lead to poor performance.
• Check The Filters: Dirty filters can affect the unit’s efficiency. Clean or replace them if needed.

Thermann heat pumps are generally more complex, so if these steps don’t resolve the issue, it’s time to get professional help.

5. How to turn on Thermann water heater

Has your Thermann switched itself off and you’re not sure how to turn it back on? This should work, for both electric hot water and gas hot water systems:

• Electric: Ensure the unit is plugged in, check the circuit breaker, and make sure the thermostat is set to the correct temperature. Then, simply press the power button or switch.
• Gas: Light the pilot light (if applicable) and turn the thermostat to your desired temperature. Make sure the gas supply is open.

6. Thermann thermostat adjustment

Want to adjust the temperature on your Thermann system? It may be fixed and not possible, but – otherwise – Thermann thermostat adjustment is really easy:

• Locate the thermostat dial on your unit
• Turn it to increase or decrease the temperature as needed.

Thermann recommends keeping the temperature setting between 60°C and 65°C for optimal performance and safety. If adjusting the thermostat doesn’t resolve the issue, you might have a faulty thermostat that needs replacing.

7. Thermann error codes

Helpfully, Thermann systems are equipped with self-diagnosing features that display error codes that can guide you to the fault. Here are a few of the most common ones:

• 11: Ignition failure – this usually indicates an issue with the gas supply or flame.
• 121: Loss of combustion – check for blockages in the vent or gas supply issues.
• 311: Thermistor wire breakage – a sensor failure.
• 651: Water flow control valve failure – requires professional repair.

There are a lot more codes in the list, so let us know if something’s flashing on your system and you need a little extra help.

Still having trouble? It’s time to call a Pro!

If none of these steps have worked, it might be time to bring in a licensed plumber. Thermann systems are excellent, but they’re also complex. If you’re still dealing with a Thermann hot water system not heating or other persistent issues like that, a hot water specialist can quickly diagnose and resolve the problem.

That’s where we come in! The team at S&J Hot Water Brisbane is experienced with all types of Thermann systems – from heat pumps to electric units to gas systems to solar heaters and beyond. So stop stressing, because we’ll get your hot water flowing again in no time.

Get in touch with S&J Hot Water Brisbane today for reliable, expert service.

Image Source: https://www.thermann.com.au/about/