What F13 Means
F13 on an older Bosch Evolution range is the stored-memory checksum failure: the control module has read back its own settings memory and found it does not add up. The manual pairs it with the microprocessor identification code as an internal control module error, and gives the same cause list of surges, line voltage fluctuation and supply problems, with the same thirty-second power interruption as the test.
Common Causes of F13
- Stored settings memory on the control module corrupted
- Power surge during a memory write
- Control module at the end of its life
🔧 One Safe Check You Can Try
Cut power at the breaker for thirty seconds, restore it and watch the display. That is the manual's own procedure, and a code that comes straight back is the board telling you the memory really is corrupt.
⚠ Why You Shouldn't Go Further Than That
- The board holds your oven calibration, so a memory fault can also mean the oven has been running to the wrong temperature before it finally reported itself.
- Supply problems are a documented cause, so fitting a board without investigating the circuit risks repeating the failure.
- Reaching the module means drawing a slide-in range out of a tight opening, with the gas connector attached on gas and dual fuel models.
- These ranges are old enough that board availability varies, and a part bought on a guess may not be returnable.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.