had same problem with my 110---tried the suggested remedy of pushing start/stop together then reset byt no joy. Thinking that the buttons may have stuck with grease or gunge ipulled off all clock buttons and blew hot air from a hair drier into the holes which started the clock flashing, but then pressed reset and ovens both lit!! Problem only sorted temporarily, but cheaper than £70 for new clock & £120 per half hour
J. Johnsun, February 2010