A convection oven has a fan and exhaust system that a regular oven does not. The fan and exhaust help to blow hot oven air over and around the food, then vent it back out. This hot air surrounds the food so that it cooks evenly and faster....
The oven element may have blown and would need replacement however there are a few other reasons this may happen such as a wiring fault or other electric part, so best to call an expert in.
This sounds like a thermostatic fault. The regulator/ thermostat may have failed and is not keeping the cabinet temperature at its required setting. This part needs to be replaced.
Yes, we offer a comprehensive selection of cooker hoods/ extractor fans and install them properly too! All types and shapes. All we need is to know the size of the space its to go into and we can install and test it. You can also send us a pic of where its to go to...