I have a hot water scheduled for 1hr every morning. The hot water comes on, but sometimes has an issue where the heat link 'clicks' and shuts the hot water valve on the boiler. It then clicks on/off repeatedly for the hour and doesn't heat the water in the cylinder sufficiently.
The hot water works fine when manually overidden by pressing the button on the heat link. The heatlink is wired to the thermostat (not wireless).
