I’m not even sure this cooker is faulty but customer claims it took an hour to cook some sausages! The grill cuts out after a few minutes and the grill indicator light goes off. It eventually comes back on, apparently after about 15 minutes. The grill control is a thermostat, not a simmerstat. There is also a door seal round the grill compartment so it would appear to also serve as a top oven. The odd thing is though, the thermostat dial is not marked out in temperature, just numbers 0 to 5. There is a door switch which I assume turns off a bottom element when you open the grill door. If I can find the part number of this door switch I will renew it as I suspect it may be dodgy.
I suppose if a grill is thermostatically controlled it is bound to shut off sometimes but perhaps it is cooling too much before it cuts back in 😕