Fix Fault Immersion

My Scantronic 9800 intruder alarm was triggered by power being restored after a power cut. It initially showed an lb fault code after being silenced following me keying the code. At this point I swit ... more

I have a Horstmann Quartz Economy7 timer which controls a dual element immersion heater. When the main timer switch is in the "on" position, the "off peak" neon light comes on immediately (even tho ... more