We may have found other answers which could help you.
Click here for Cooker Time Trip SwitchIncrease volume of alarm on Neff oven?
How to raise volume of cooking alarm?
How can I mend my Siemens HB55M550B oven?
Cookmaster ck100c210?
Main oven on BAUMATIC BT2750 not working?
How to replace element on Bosch oven HBN 7052GB?