My heating isn't working properly - what should I do?

Contact your builder’s customer care team, they should have verified the heating is working.

1. Check the batteries in your room thermostat first — a dead thermostat is the single most common cause of “no heating or hot water”.
2. Check your boiler pressure (should be 1-1.5 bar when cold).
3. Check that thermostats are set correctly. If you have multiple thermostats, their zones may be reversed!
4. If some rooms are warmer than others, you may need to turn the radiator thermostat down in those rooms to help balance the heat.
5. Ensure the timer/programmer is set appropriately. Most controllers also have an “extra hour” / boost button for one-off heating or hot water outside the schedule.
6. Try resetting the boiler (check manual).
7. Zone valves (3 port valves), which divert water between heating and hot water, are a known weak point on the estate — sticking valves are a common defect and plenty have been replaced under warranty. If these are not installed next to your boiler, they may be underneath the bath. Symptoms: hot water but no heating (or vice versa), or heating that stays on when it shouldn’t.

Emergency gas issues: If you smell gas, call the National Gas Emergency Service on 0800 111 999 immediately.