HVAC Guides
Step-by-step hvac guides — fixes, fault codes and FAQs.
- How to Bleed a RadiatorA radiator that is cold at the top but warm at the bottom has trapped air. This guide covers bleeding the radiator to restore full heat.
- How to Clean an Air Conditioning Unit FilterA dirty air conditioning unit filter reduces efficiency. This guide covers cleaning the AC filter.
- How to Clean Window Trickle VentsBlocked trickle vents can reduce ventilation. This guide covers cleaning window trickle vents.
- How to Fix a Boiler Losing PressureA boiler losing pressure is a common issue that can affect your heating. This guide covers diagnosing and fixing the problem.
- How to Fix a Boiler Making a Banging Noise (Kettling)A boiler making a banging noise (kettling) can indicate limescale buildup. This guide covers diagnosing and fixing the issue.
- How to Fix a Boiler Pilot Light That Has Gone OutA boiler pilot light that has gone out can leave you without heating. This guide covers relighting the pilot light safely.
- How to Fix a Boiler Short CyclingA boiler short cycling (turning on and off frequently) wastes energy. This guide covers diagnosing and fixing the issue.
- How to Fix a Boiler Showing a Fault Code and Won't ResetA boiler showing a fault code that will not reset needs diagnosis. This guide covers common fault codes and fixes.
- How to Fix a Boiler with No Hot WaterA boiler with no hot water is a frustrating problem. This guide covers diagnosing and fixing common causes.
- How to Fix a Damp Patch on a WallA damp patch on a wall can indicate a problem. This guide covers diagnosing and fixing cosmetic damp patches.
- How to Fix a Heating Timer Not WorkingA heating timer that does not work can leave you without heat. This guide covers diagnosing and fixing the issue.
- How to Fix a Leaking Radiator ValveA leaking radiator valve can cause water damage. This guide covers fixing a leaking radiator valve.
- How to Fix a Portable AC Not CoolingA portable AC that is not cooling may need cleaning or maintenance. This guide covers diagnosing and fixing the issue.
- How to Fix a Radiator Not HeatingA radiator that is not heating at all could have a valve issue or airlock. This guide covers diagnosing and fixing the problem.
- How to Fix a Smart Thermostat Not ConnectingA smart thermostat that does not connect to Wi-Fi can be frustrating. This guide covers diagnosing and fixing the issue.
- How to Fix a Thermostat Not WorkingA thermostat that does not work can leave your home too hot or too cold. This guide covers diagnosing and fixing the issue.
- How to Fix Central Heating That Won't Turn OnCentral heating that will not turn on can be caused by several issues. This guide covers diagnosing and fixing the problem.
- How to Fix Condensation on WindowsCondensation on windows can indicate poor ventilation. This guide covers reducing and preventing window condensation.
- How to Fix Loft Insulation GapsGaps in loft insulation can waste energy. This guide covers identifying and fixing loft insulation gaps.
- How to Fix One Radiator Cold While Others Are FineA single cold radiator when others are hot indicates a specific problem. This guide covers diagnosing and fixing the issue.
- How to Fix Radiators Not Heating EvenlyRadiators that do not heat evenly can make your home uncomfortable. This guide covers diagnosing and fixing the issue.
- How to Install a Bathroom Extractor Fan for CondensationA bathroom extractor fan removes moisture and prevents mould. This guide covers installing a bathroom extractor fan.
- How to Install a Draught ExcluderA draught excluder stops cold air from entering your home. This guide covers installing a door or window draught excluder.
- How to Install Radiator Reflector PanelsRadiator reflector panels reduce heat loss through walls. This guide covers installing radiator reflector panels.
- How to Remove Mould from a Bathroom CeilingMould on a bathroom ceiling is common and can be removed easily. This guide covers cleaning and preventing mould.