This excerpt from the user's manual can explain the problem of your heating element.
"... dryer / User's Manual 17 -• A WARNING! The inside of the dryer can be extremely hot when you cancel the program while it is running. It is therefore advisable to run the cooling program to let it cool down. Do not place the dryer on a thick carpet since this could obstruct the air circulation. Moist air outlet A - Vented dryer - There are two openings for venting out humid air. One of them should be closed with the supplied lid, while the other should be connected to the evacuation tube...."
WHIRLPOOL AWZ 8227 WP, BOSCH WTY87702, SAMSUNG DV80TA020TH, DV80TA020TH/ET, , AEG T76485AH, 916 096 712, SIEMENS WT43H280CH, WHIRLPOOL FT CM11 8XB1 FR, HOOVER NDEH11RA2TCEXM80, NDEH11RA2TCEXM80
Manufacturer's part price is £69.61 Discount for bulk (starting at 10 units), £67.31 per unit
This manufacturer part is recomended by HOOVER, which gives it a 10/10 rating.
This spare part is recommended for your HOOVER NDEH11RA2TCEXM80 dryer .
All spare parts are new and come with two years warranty
① Carefully check your HOOVER dryer's product number
② Start search
Here are examples for partial reference for dryer :
Where to find the reference?