9 yr old Puma 80e started playing up.
Switch on and CH & HW come on straight away regardless of timeclock.
If hot tap not run the boiler boils over and spurts water out of overflow at top. Reset button not working.
Any ideas ? Circuit board? Sensor? Help greatly appreciated.
Switch on and CH & HW come on straight away regardless of timeclock.
If hot tap not run the boiler boils over and spurts water out of overflow at top. Reset button not working.
Any ideas ? Circuit board? Sensor? Help greatly appreciated.