Landis + Gyr RWB2 Timer
- Thread starter Dave2021
- Start date
It is very old circa 1980. However, it does look to be correct, provided that you took the photo at 11:00am 
If you turn the dial manually, does the programmer switch 'on' and 'off' as the little tappets pass the time arrow?
The most common cause of heating coming 'on' when not expected especially during a cold snap, is the presence of a frost thermostat somewhere. They are designed to override the time controls and turn the heating on when there is a risk of pipes or the boiler freezing. They are not always fitted, but generally present where there are exposed pipes or the boiler is located in a garage or out building for example.
If you turn the dial manually, does the programmer switch 'on' and 'off' as the little tappets pass the time arrow?
The most common cause of heating coming 'on' when not expected especially during a cold snap, is the presence of a frost thermostat somewhere. They are designed to override the time controls and turn the heating on when there is a risk of pipes or the boiler freezing. They are not always fitted, but generally present where there are exposed pipes or the boiler is located in a garage or out building for example.
The current time is indicated by the arrow.
So as you can see the current time is 11am. Turn the dial until the arrow is pointing at the current time.
So as you can see the current time is 11am. Turn the dial until the arrow is pointing at the current time.
Indeed you do. 
And as the dial rotates it will always point at the current time.
And as the dial rotates it will always point at the current time.
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