Worcester Bosch greenstar hi flo 50/50. Just changed the room stat from mechanical to digital. The stat is wired to a LP111 timer
. I keep getting 130 volt backfed to boiler pcb even when the timer is switched off. I get the same voltage if the room stat is removed.
When timer is removed then every thing is o.k. i.e. zero volts.
Any thoughts?
. I keep getting 130 volt backfed to boiler pcb even when the timer is switched off. I get the same voltage if the room stat is removed.
When timer is removed then every thing is o.k. i.e. zero volts.
Any thoughts?
