What to do when you have no hot water

What to do when you have no hot water

Follow this guide to help you to identify the problem when you discover you have no hot water.

Combi boiler system

Your hot water should be provided ‘on demand’.

  • Make sure your boiler is switched on and the display does not indicate a fault.
  • If there is a fault displayed, use the manual that came with your boiler to find out what the problem is. If your home is still under warranty, please get in touch using the contact box on this page.
  • If the boiler is on and there are no faults showing, try running the hot tap nearest to the boiler, most likely the one over the kitchen sink. Watch the boiler display as you do this, noting any faults that are displayed, then proceed as above.

Conventional system

With this type of system you’ll have a cupboard containing a hot water cylinder.

  • If you’ve simply run out of hot water, you can use your immersion heater boost programmer. Remember, immersion heaters use a lot of energy and can be more expensive to run. The switch will probably be in the cupboard with your boiler.
  • Check your boost programmer is set for long enough to provide a sufficient amount of hot water.
  • Check the front panel of your boiler to ensure that it is running correctly and displaying no faults. If all seems well, you may want to adjust your hot water settings to better suit the needs of your family.
  • If there is a fault displayed, use the manual that came with your boiler to identify the problem. If your home is still under warranty, please get in touch using the contact box on this page.

Only the shower is affected

In this case, it is likely to be one of these reasons:

  • Electric showers are unaffected by a general loss of hot water, since they heat water direct from the mains. So if your electric shower isn’t working it may not be getting power, or could be suffering from an internal fault.
  • If the problem affects a single non-electric shower, it may be an issue with the internal thermostat preventing hot water from getting through.
  • If the shower simply isn’t receiving hot water, the hot water feed could have been turned off during recent plumbing work.

If it’s none of these, and your home is still under warranty, please contact the Customer Care team.

Bath or sink only is affected

If your shower is working but you’re having problems with one bath or sink, there are a number of possible causes:

  • If you can’t get your bath water hot enough, it could be linked to the bath restrictor, fitted as standard. Please contact our Customer Care team.
  • If your bath or sink is running only cold water, try running the tap for longer to see if it heats up. Check other taps to see if they eventually run hot.
  • If there’s no water at all, it’s likely this particular tap has been disconnected from the hot water supply, possibly during plumbing work or maintenance.
  • If you’ve just moved in and this outlet has never delivered any water, please contact the Customer Care team.

All outlets are affected

If the problem is not isolated to just one outlet and you’re only getting cold water from your taps, it could be you’ve run out of hot water, or your boiler or cylinder isn’t working properly. A common problem with all types of boilers and cylinders is a lack of pressure. Please consult your heating manual in your handover information pack for how to correctly set up your heating/hot water.