Published by Steph Ellis on 12th January 2023

Heating Troubleshooting Guide

If you have noticed that your radiator is not as hot as it should be, please follow our troubleshooting guide below.

Check boiler pressure

Locate your gas boilers and find the pressure gauge. If the needle is in the red area, then this is likely the issue and you will need to top up the gas boilers pressure.

Every gas boilers manufacturer has a different way to do this. Please see our video below, which shows one of engineers topping up the gas boilers pressure.

INSERT VIDEO HERE – VIDEO NAME – How to top up gas boilers pressure – Have an engineer showing where you can usually find your gas boilers within the home, where the pressure gauge is & how to top up the boiler pressure on newer gas boilers. Also have him talking through the process for older gas boilers.

Below are two table’s made up of different manufacturers & the method used to top the gas boilers pressure up depending on gas boilers age

Manufacturer	Pressure gauge location	Method for topping up gas boilers pressure
Worcester Bosch	TBC	TBC
TABLE TO BE	COMPLETED	WITH ALL INFO OF BOILER TYPES

Gas Safe Boilers that are 10 years or younger

Manufacturer	Pressure gauge location	Method for topping up gas boilers pressure
Worcester Bosch	TBC	TBC
TABLE TO BE	COMPLETED	WITH ALL INFO OF BOILER TYPES

Gas boilers that are older than 10 years

Bleed the radiator

When air gets trapped inside your radiator, it can stop the heat from circulating properly. To release the air, you would complete a process called ‘bleeding’ your radiator.

Please follow the below steps:

Switch off the heating
Locate radiator key, insert into valve at the top of the radiator & turn
The trapped air will begin to escape & make a hissing sound
Once hissing stops, use your radiator key to tighten the valve
Switch heating back on
Check radiator to see if it has made a difference

Complete TRV checks

The TRV (thermostatic radiator valve) is the dial located at the side of your radiator which is used to control the temperature.

Sometimes, this can become faulty – the dial can stick or break. If this has happened, please get in touch with our gas safe boiler engineers so that we can fix the issue with our gas safe boiler repair.

Thermostat checks

If there are a few radiators that are not heating up properly, this could indicate an issue with the thermostat.

The first step would be to try resetting the thermostat. Each thermostat has a different process for this – take a look at the guide that came with your thermostat and follow the instructions to reset this, this can help with boiler repair.

If this does not work, it may be that your thermostat is faulty – at this point, our gas safe boiler engineers would recommend getting in touch with the manufacturer for boiler repair.

Contact Utility Pro’s

If you have run through all of the above troubleshooting steps and require further help, please get in touch with our team of gas safe boiler engineers in Milton Keynes & we will be happy to help with boiler repair.

James M.

Absolutely first class!

Diana O.

Jens S.

I would recommend Utility Pro's simply for their responsiveness, can do approach and excellent customer service. I was in the need for a gas certified engineer in the Chipping Norton area to fix the gas fireplace at my employer's property. Calling several businesses on the gas-certified business register, most of them don't even deal with gas fireplaces, even though it states on their websites.
I simply found Utility Pro's by searching on Google and calling around and I think I struck luck. I called around 4.30pm on a Friday and got a prompt answer by Lorraine who assured me that they could do the job. She asked me if it would be ok if she could call me back as she would like to speak to one of their engineers. 25mins later I received her call and she offered the following Tuesday in the afternoon to assess the issue and when possible to fix it there and then.
Lance, the engineer portrait great confidence and knowledge and fixed the problem within minutes.
Whilst the installer and the manufacturer of the gas fireplace had no one available until the new year and the company looking at the gas appliances at the property refused to fix the gas fireplace, Utility Pro's took on this job with a can do mentality and customer care. I think I know who'm I will contact for any gas or electric related tasks in the future.

Michael C.

A very helpful and professional company. Quick and reliable service, from caring knowledgeable engineers. We have no hesitation to recommend this family run business.

Peter E.

Quick to respond - fixed problem - reasonable price

Patrick M.

Utility Pro`s are exemplary in terms of efficiency and professionalism. It brings great peace of mind to know that qualified engineers will attend promptly to any project - big or small - and will complete the relevant work to an extremely high standard.

Tess S.

I've used Utility Pros for since 2018. They have consistently been good with their services and accomodating with timings with us.

John C.

I am very impressed with how they dealt with the issues we had regarding a boiler, water pressure, and toilet. Incredibly polite and helpful receptionist guiding us through what you can imagine was a stressful time. The guys that did the work were knowledgeable, sorted the issues, and put our minds at ease. Will use them again if anything else goes wrong.

Eurem M.

Always very happy with the service, from looking after my old oil fired underfloor heating system to using them again as soon as I moved house to service my new gas boiler & check the underfloor heating and radiators.