Hi everyone.
I have a Vaillant ecotec plus 831 and every few weeks this f62 err code keeps appearing. This has been going on for a couple of months now, but this time the pressure is in the red. Please can anyone advise me on this. Many thanks in advance.
I have a Vaillant ecotec plus 831 and every few weeks this f62 err code keeps appearing. This has been going on for a couple of months now, but this time the pressure is in the red. Please can anyone advise me on this. Many thanks in advance.