How does the interlock work on a Potterton wall?
How does the interlock work on a Potterton wall? the HOT WATER is on. If yours is a simple system, the interlock will automatically cut the programming facilities that your system cannot cope with. This means the HOT WATER is automatically turned ON, when CENTRAL HEATING is on. The ADV buttons allow you to go forward to the next ON or OFF time, when the sliders are in TIMED or ONCE position. The How to set up days in Potterton ep2000? Press DAY button. Move slider to CLOCK. Adjust displayed time, using - & + buttons. Adjust day, by pressing...