Doncaster · BPHS
No heating or hot water — what to do
Straight answer
If you have no heating or hot water, check the boiler has power, the thermostat is set above room temperature, the timer is on, and the pressure gauge is around 1.0–1.5 bar when cold. Try one reset only. If it still will not fire, call a Gas Safe engineer. In Doncaster that is BPHS on 01302 490450. If you smell gas, leave and call 0800 111 999.
Checks before you call a heating engineer
- Step 1. Confirm there is no power cut and the boiler switch / fused spur is on.
- Step 2. Set the room thermostat to 21°C and make sure it is calling for heat. Replace batteries on wireless stats.
- Step 3. Override the timer so heating is ON now, not waiting for a schedule.
- Step 4. Check boiler pressure. Cold, you want about 1.0–1.5 bar. Top up via the filling loop if you know how — see our repressurise guide.
- Step 5. Press reset once. If it locks out again, stop and call us.
When to skip the checklist
Water leaking from the boiler, a smell of gas, carbon monoxide alarm, or scorch marks. Get out, call the right emergency number, then us.
People also ask
Why do I have heating but no hot water?
On a combi this is often a diverter valve or scale on the plate heat exchanger. On a system with a cylinder it can be a cylinder thermostat, motorised valve, or immersion. Heating working does not mean the hot-water side is healthy.
Why do I have hot water but no heating?
Often a stuck motorised valve, a programmer set to hot water only, a room thermostat fault, or sludge in the radiators. The boiler may be fine.
Is no heating an emergency?
In a Yorkshire winter, yes — especially with young children, elderly occupants, or a freeze risk to the pipes. In mild weather it can sometimes be a same-day booked visit.
My boiler has a fault code. What should I do?
Note the code, take a photo of the display, and call us. Do not keep resetting. The code tells us which parts to bring.