Hello everybody i am new here and i was hoping someone could help me with my central heating problem.
I have an Ideal (Classic) boiler with a Honeywell smartfit Y Plan system. The problem started when my central heating stop working and a F4 fault showed on the room unit. I have checked the 3 port valve for blockage and it appears to be working fine as i can turn the brass from A to B. I then changed the smart fit actuator for a brand new one from ebay. The problem appeared to have been fixed and we had heating and hot water overnight BUT the next day the same problem showed up again (F4). I performed a system check on the Room Unit and this time its not detecting the Y system too as it shows (0) invalid system. Im complete lost now and i don't know whats wrong here.
To summarize everything
1. F4 fault (even when actuator was changed with same brand)
2. Invalid system
I have an Ideal (Classic) boiler with a Honeywell smartfit Y Plan system. The problem started when my central heating stop working and a F4 fault showed on the room unit. I have checked the 3 port valve for blockage and it appears to be working fine as i can turn the brass from A to B. I then changed the smart fit actuator for a brand new one from ebay. The problem appeared to have been fixed and we had heating and hot water overnight BUT the next day the same problem showed up again (F4). I performed a system check on the Room Unit and this time its not detecting the Y system too as it shows (0) invalid system. Im complete lost now and i don't know whats wrong here.
To summarize everything
1. F4 fault (even when actuator was changed with same brand)
2. Invalid system