The third pin is for an earth connection and if the fan heater is plastic it will not require an earth.
Plug on fan heater gets hot.
Ok that might be a little much.
Check plug wires circuit breakers and outlet for security and function.
If you are overly concerned contact delonghi.
Many of the smaller ones are 2 5kw or less.
The plug should not get hot or even more than barely warm even with sustained periods of use.
If i plug one in the heater s plug gets hot.
If the cord plug gets hot at the plug strip problem is the plug cord.
I should blame the campground then open the box and hose it down to cool it off.
Corrosion arcing or dirt in the connection will cause resistance which will in turn cause heat.
My rv s wiring isn t big enough to handle a space heater.
The black paint on the grill may be wearing off over time due to heat.
If an overheated plug is near flammable materials such as curtains wood furniture or paper then the plug can ignite those materials starting a fire.
Immersion heaters are wired in because they operate for hours at a time a fan heater should cycle on and off with its thermostat.
It is a fire risk and should not be used.
Portable heater plug gets hot.
3kw is quite powerful for a fan heater.
How long have you had the fan heater.
Similarly overheated plugs can damage the insulating material around the plug s prongs or electrical cord wires.
Try replacing plug socket and the fuse in the plug with a good brand.
A plug that is hot to the touch may pose fire and electrical shock hazards.
If the plug end is hot and the cord is progressively cooler toward the heater the problem is a lack of continuity in the plug or wall outlet.
Using a amp clamp to read amps.