Hi all, I've a 5yr old vokera linea 24. Been OK so far except for an 07 error about 1 year ago. Followed advice here and changed thermister and worked well till yesterday.
Problem was no hot water, error 04 flashing. Read manual, checked pressure (0.5 bar) refilled to 1.5 bar, reset for 10 seconds (and later disconnected from mains for 12 hrs last night)but on turning control knob to water or to radiator green light comes on for a few seconds and then changes to flashing red and error 04.
Read a post about sticky pressure switch so also raised pressure to 2.5 bar overnight when disconnected from mains. I noted that when I reduced the pressure by opening the safety the micro switch next to the diverter valve operated when water was flowing out of the safety valve.
I've tried to follow the fault guide but cannot decide if its a pcb board or pump fault. Since I've been quoted £250 for the pair any comments narrowing it down to either, or preferably a cheaper option, would be appreciated. Thanks in advance. Dave
Problem was no hot water, error 04 flashing. Read manual, checked pressure (0.5 bar) refilled to 1.5 bar, reset for 10 seconds (and later disconnected from mains for 12 hrs last night)but on turning control knob to water or to radiator green light comes on for a few seconds and then changes to flashing red and error 04.
Read a post about sticky pressure switch so also raised pressure to 2.5 bar overnight when disconnected from mains. I noted that when I reduced the pressure by opening the safety the micro switch next to the diverter valve operated when water was flowing out of the safety valve.
I've tried to follow the fault guide but cannot decide if its a pcb board or pump fault. Since I've been quoted £250 for the pair any comments narrowing it down to either, or preferably a cheaper option, would be appreciated. Thanks in advance. Dave