Do you notice that your hot water suddenly becomes cold after a few minutes?
If so, you’ve come to the right place. By following the procedures outlined below, you can avoid the aggravation of your shower or hot water taps becoming cold. You may apply for free boiler grants if you meet the eligibility criteria. Let us begin!
Troubleshooting Why Does Your Combi Boiler’s Hot Water Go Cold?
Your combi boiler offers an endless hot water supply, but this is only sometimes the case. Perhaps you observed that the hot water turned chilly while you were showering or that the tap gave you tepid water instead of hot. This can be really frustrating, especially if you’re in a hurry. If you’re having hot water problems with your combi boiler, don’t worry. Various circumstances can cause this problem, but with some troubleshooting, you can resolve it on your own. In this post, we’ll look at why your combi boiler might be producing cold water and what you can do to solve it.
This is a typical problem with combi boilers, and it usually boils down to a dirty system. However, several other reasons could contribute to this issue, including:
1. Check the pressure.
The first thing you should do if your combi boiler’s hot water goes cold is check the pressure. If the pressure drops below 1 bar, the boiler will immediately turn off the heat to protect itself from damage. You can check your boiler’s pressure gauge to determine if it is less than one bar. If so, you’ll need to repressurize the system. This is commonly accomplished by opening the filling loop valve and adding water until the pressure exceeds 1.5 bar. For more specific information, consult your manufacturer’s instruction manual.
2. Examine the thermostat.
A broken thermostat is another reason your combi boiler may be producing cold water. The thermostat regulates the water temperature and turns on and off the boiler to keep the correct temperature. If the thermostat is defective, it may shut down the boiler prematurely, causing the water to cool quickly. To see if the thermostat is the problem, raise the temperature and observe if the boiler responds. If it doesn’t, you might need to replace your thermostat.
3. Inspect the Pilot Light
If your combi boiler’s hot water runs cold, the pilot light may have gone out. The boiler won’t ignite and heat the water without the pilot light. Checking the pilot light is simple. Check the pilot light on your boiler to determine if it’s lighted. If it isn’t, relight it using the instructions in your manufacturer’s manual. Follow the safety instructions carefully.
4. Check for airlocks.
Airlocks can also interfere with your hot water. Airlocks develop when air becomes trapped in the system, preventing water from flowing through the pipes. This can reduce water pressure and cause the boiler to shut down. To fix an airlock, you must bleed your radiators. Loosen the radiator valve until all of the air escapes.
4. Contact a professional.
If you’ve tried all of these troubleshooting steps and your combi boiler still doesn’t produce hot water, it’s time to call a professional. A trained heating engineer can identify the problem and perform the necessary repairs. If you are still determining your talents, do not attempt to solve the problem alone. Boiler repair can be risky and should only be performed by someone with the necessary training.
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Apply For The Boiler Upgrade Scheme At Green Home Grants
If the troubleshooting steps above do not work, your combi boiler may need replacing or repairing. Our experienced worker must often examine the condition and make any necessary repairs. It’s crucial to note that older or broken boilers are less efficient than newer models, so replacing them with a more contemporary system may save you money in the long term.
The UK government offers free eco4 grants to assist households in upgrading their boilers. This could be an excellent option for obtaining a new combi boiler and profiting from its better performance. Visit our Green Home Grants website to learn more about eligibility and how to apply for a new free boiler grant 2024.
Hot water problems with your combi boiler can aggravate them, but they are typically simple to remedy. Check the pressure, thermostat, and pilot light and search for airlocks to identify and correct the problem yourself. If you are unsure about your ability, contact our eco specialist. With some troubleshooting, you’ll return to taking hot showers in no time.