My tank is not following the schedule

There are several reasons why a tank is heating outside of or not following a manual schedule. These are outlined below.

My tank heating outside of the schedule

This could be due to one of the following:

1. The tank may have been boosted from the gauge or the App, overriding the schedule.
2. If you set ‘maintain levels’ within the App, your tank will automatically begin to heat when the water level drops below the minimum parameter.
3. If you have solar PV or solar thermal, your tank will automatically heat when surplus energy becomes available.
4. A sterilisation cycle occurs every two weeks. This will heat the tank entirely to 100% to prevent legionella growth.
5. If you have automatic heating control, your heating schedule will be automatically optimised and may be altered to assist with balancing the National Grid system.
6. The tank runs a frost protection function. If the bottom temperature of the tank falls below 5°C, the tank will heat up until the bottom reaches 15°C. You can disable this function in the tank settings on the App. 

Why is my tank not following the schedule

1. If you have a sense cable connected, your tank will ignore its schedule.  Your tank will start to heat up when the cable becomes live and will stop when the cable is no longer live. To disable the sense cable in the app, click on the Schedule tab, click on the cog icon on the top tool bar, click “Ignore automatic off-peak sense and follow schedule”.
2. If you do not have sense cable connected, it is still worth checking the above step, as it could be that the system has wrongly identified a sense cable to be present.
3. If the tank has lost internet connection and been powered off and on, it will have entered offline mode and will maintain between 40-50%.
4. If the tank is in vacation mode, the tank will not follow its schedule until the return date set in the App.
5. If the power button on the gauge has been pressed and held, the tank will enter a standby mode and will not heat. Press and hold the button again to continue heating according to the set schedule.

If none of the above explain or resolve the issue, call our Homeowners & Residents line on 01865 595 875.
Hours: Monday to Friday, 09:00 – 17:00.