heating still running when timer switched to off.the only way to turn it off is with the power switch.i switch it back on it fires up again,then the odd time it stays off for a while then fires up on its own..timer model ravenheat RSF 820/20 T FANNED COMBI
This could be way off beam, but if you have a frost thermostat somewhere it could be set too high......the frost stat overrules the other timed systems. Failing that, I guess it must be the timer.
