When I looked at the combi boiler there was a red "Flame Faiilure " red warning light. I noticed ice on the white overflow pipe going into the grid outside. I got a heat gun and after a few minutes a tube of ice started to drop out. eventually I got an 18" ice tube out. I made sure this pipe was clear. I reset the boiler and it is now working perfectly.
I am posting this in case anyboidy else gets this problem.
I am posting this in case anyboidy else gets this problem.
