From your description, it sounds like the element is not powering up: therefore no heat and hence no pressure.
I know nothing about Mavers but in generally this would come down to three possibilities:
1. The element has an auto-cut out safety switch, this has operated and simply needs to be reset.
2. Wiring to the element is no longer complete [eg loose connection]
3. The element itself has burned out
Hopefully it will be a simple problem [per 1 & 2] but ld suggest discussing it with someone with "Maver" expertise before proceeding.
Good luck with it.