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Frequently Asked Questions

What should i do if i can smell gas?

The first thing to remember is not to turn on or off any electrical devices including lights and torches. Now go to your gas meter and switch off the gas control valve, you can open windows and doors to ventilate your property.

Exit your property and ring the Gas Emergency Service on 0800 111 999 

How do I correctly top up the pressure on my boiler?

First, you need to locate your filling loop or filling link, which should be fitted to the underneath of your boiler or fitted to the pipework leading from the boiler. You now need to find the pressure gauge, which will be located on your boiler. Is your central heating system switch off and cool? If not, switch it off and wait for your system to cool down before topping up the pressure. Now your central heating system is cold you can start topping up the pressure by opening up the filling valve and carefully monitoring the pressure gauge. The pressure should be between 1.0 and 1.5bar. Keeping your pressure between these values is very important, increasing your pressure further may cause damage to your boiler or system. Running your boiler on low pressure can also cause damage to your boiler. If in doubt call a Gas Safe Engineer.

My boiler is showing a fault code, what can I do?

Your boiler has a sequence of operations that it will go through every time there is a demand. If one of these operations is not completed due to a faulty part, the boiler should go into fault mode and display a fault code relevant to what action it failed to achieve. Faults can be intermittent so you could as a temporary solution reset your boiler using the reset switch or by turning the power off and back on again. This could get your boiler working again for a limited amount of time, at this point you should call a Gas Safe Engineer to diagnose and repair your boiler. Never attempt to repair your own boiler.

Why is my water pressure low?

There are many causes of low water pressure some are listed below:

  • Your stop tap may not be in the fully open position
  • You may have a pressure reducing valve on your supply
  • You may have a blocked strainer on your supply
  • You may have a leaking water supply underground
  • You could be on a shared water supply

My electric shower keeps going hot and cold.

Most electric showers restrict the water flow passing through the heating element so that water can be heated, so the slower the water, the hotter it will become. If your showerhead becomes blocked or scaled up, it will restrict the water flowing out of the shower causing the shower cut out on its thermal cut out, when the water cools down the shower will start heating again. This will become a cycle causing your shower to run hot & cold. Low water pressure can also create this cycle.

My thermostatic mixer shower runs hot or cold.

Thermostatic mixer showers work best when your hot & cold supply is balanced, this means they are both running at the same pressure. If your cold supply is better than you’re hot your shower may struggle to mix the water and in result will give you a cold shower. Most showers have a mesh filter that can become blocked with debris causing unbalanced supply to the shower. In some cases, your thermostatic cartridge can stop working correctly causing the same result, if this happens you will need a new cartridge or possibly a new shower.

I have one radiator which suddenly stopped working.

The first thing to check would be to make sure your radiator is on by opening the valves on both sides of the radiator. There should be a thermostatic radiator valve on one side and a lockshield valve on the other side. Using a radiator vent key try venting your radiator if air comes out then proceed to vent in till water follows. Now switch on your heating and check for correct operation. If your radiator still does not heat up get in touch with a heating engineer.

My tap keeps dripping, what type of tap do I have?

There are two types of taps. The first type contains a washer, this type of valve you can screw tighter and tighter to try and stop the water dripping. This tap will require a new rubber washer. The second type contains ceramic disc cartridges these taps will only open and close with a quarter turn movement. This tap will need new ceramic disc cartridges to stop the dripping.

Why should I get my boiler serviced annually?

Modern-day gas boilers when calibrated and installed correctly burn gas in a lot cleaner way, so they do not create a lot of deposits to be cleaned from the heat exchanger. If the boiler falls out of calibration, this can mean the boiler is no longer burning gas efficiently, which also means there can be a dangerous amount of carbon monoxide produced. This can be found on a boiler service and corrected along with many other safety checks. A Gas Safe Engineer should carry out all service procedures.

How long will it take to replace my combination boiler?

On average, a combination boiler replacement will take between one and two days.

Example 1: Your new boiler is staying in the same location, and the flue exits the property via an outside wall. Your current gas supply is sufficient for the new boiler to operate; there is a waste pipe nearby to connect the condensate discharge. You have chosen plug in controls for your new boiler, and you already have thermostats on all of your radiators. This job would usually take one day to complete.

Example 2: Your new boiler will be relocated into an airing cupboard, you require a vertical flue kit exiting via the pitched roof using 3 meters of flue section, you need a new gas supply installed to the new location, and you need thermostatic controls installed on all of your radiators. There is no waste pipe locally available, and you have chosen external controls. This job would usually take two days to complete.