Below i have listed some fault codes that could be present on your Hotpoint cooker, these may help you but are no way a definative solution, if you attempt any repair on your cooker be sure to isolate it from the mains supply, one of the most common faults of no heat in the oven is the fan oven element.
F0 Function key stuck Replace touch pad or if touch pad is part of the clock, replace the clock (ERC).
F1 Defective touch pad or clock (ERC) Replace touch pad or clock (ERC). Touch pad is a more common problem. Refer to F1 test at the top of this page for more information.
F2 Oven temperature too hot Replace relay board, if present, or oven temperature sensor (RTD). Check sensor harness.
F3 or F4 Shorted or open oven temperature sensor (RTD) Check sensor harness and harness connection between oven sensor and oven control. Replace oven temperature sensor (RTD) if wiring is ok.
F5 Watchdog and hardware conflict Replace clock (ERC).
F7 Function key shorted or stuck Replace touch pad or if touch pad is part of the clock, replace the clock (ERC).
F8 Analog / Digital problem Replace clock (ERC).
F9 Door latch Check door latch components.