Clearing Timer Memory
The simplest method of clearing the timer memory is to remove and replace the batteries:
Correct batteries are 2 x 1.5v AG13 (LR44) button cell batteries which are available mail-order from our Spares page

| Action |
| Remove battery cover on rear of timer |
| Remove batteries and replace Batteries as per diagram |
| Replace battery cover ensuring metal contacts slide into slots |
| Reset time (click here for instructions) |
| Re-set on and off-times (click here for instructions) |