My Vaillant Thermocompact Boiler 628E, shows the error message 5.33 (maybe S.33).
I rang Vaillant technical Dept yesterday who said it was the air pressure switch and I bought one for £40 & changed it myself.
Guess what- it is still showing the same error code!
Can someone help as its Bank Holiday Friday and my 3 children are freezing!!
M
I rang Vaillant technical Dept yesterday who said it was the air pressure switch and I bought one for £40 & changed it myself.
Guess what- it is still showing the same error code!
Can someone help as its Bank Holiday Friday and my 3 children are freezing!!
M