No hot water repairs in Broxbourne, Hoddesdon, Cheshunt and nearby areas
No hot water may be a boiler fault, diverter valve issue, pressure problem, programmer fault or cylinder/control issue depending on the system.
No hot water is urgent when it affects washing, children, elderly occupants, tenants, or when the same fault has also stopped the central heating.
When to call now
Call straight away if water is actively escaping, a ceiling is getting wet, toilets or waste are backing up, heating or hot water is off for vulnerable occupants, or a boiler fault keeps returning after reset. If you smell gas, leave the property safe and call the National Gas Emergency Service on 0800 111 999.
What to do first
- Check whether heating still works or both heating and hot water have failed.
- Note any boiler fault code.
- Check whether other taps are affected.
- Avoid resetting repeatedly if the fault returns.
Common causes
The exact cause needs diagnosis, but these are the issues we commonly check first:
- Combination boiler diverter valve fault
- Low pressure or ignition lockout
- Cylinder thermostat or motorised valve problem
- Programmer or control issue
- Flow sensor or temperature sensor fault
What this often looks like on site
- A combi boiler that heats radiators but does not produce hot water at taps.
- A cylinder system where the programmer, thermostat or motorised valve is not calling correctly.
- Hot water that runs warm then cold because of a sensor, diverter or flow issue.
- A boiler showing low pressure, ignition lockout or another fault code.
No hot water is not always a boiler breakdown. A single faulty tap, programmer issue, cylinder control or valve problem can look similar to a boiler fault.
How All Hours helps
We diagnose whether the problem is boiler, controls, cylinder or plumbing related and explain the likely repair before parts are fitted.
We prioritise making the situation safe, protecting the property where possible and explaining the likely repair clearly before further work begins.
What to tell us when you call or WhatsApp
- Whether heating still works.
- Whether all taps are affected or one outlet only.
- Boiler fault code if shown.
- Whether there is a hot-water cylinder or combi boiler.
- How long the problem has been happening.
What happens during the visit
- Confirm whether the issue is boiler, controls, cylinder, valve or plumbing related.
- Check visible symptoms and safe operating information.
- Explain likely repair route before fitting parts.
Local context
For Broxbourne-area enquiries, the system type matters: combi boiler, cylinder, programmer, visible fault code and whether all taps or only one outlet are affected.
Related service
This problem is usually handled through our No Hot Water Repairs service.
No Hot Water RepairsView the matching service pageBest Broxbourne route for this problem
If you are in Broxbourne or nearby EN10, these links take you straight to the most specific service-town page before you call.
Local pages for no hot water
Use these area links when the location changes the access, routing or likely property context. They keep the advice local without promising attendance before availability is checked.
Helpful local pages
If you are in the core coverage area, these pages explain local access notes and the most relevant service routes for this problem.
Direct answers about no hot water
Quick answers to common questions before you call.
Why does my heating work but not hot water?
On combi boilers that can point towards diverter, flow or sensor issues; on cylinder systems it may be controls or valves. Diagnosis depends on the system.
Should I turn the boiler off?
If the boiler is making unusual noises, leaking, showing a serious warning or you feel unsafe, switch it off if safe and call for advice.
Can photos help?
Yes. A photo of the boiler display, cylinder controls or programmer can help us understand the system before attendance.