What F03 or F04 Means
F03 and F04 on the legacy platform are published as a possible problem with the electronic oven control or the associated wiring. Unlike the sensor codes, these point at the control board itself rather than at what it is reading.
Common Causes of F03 or F04
- Transient control fault cleared by a reset
- Control connector loose
- Wiring behind the console damaged
- Electronic oven control failed
- Supply voltage disturbance
🔧 One Safe Check You Can Try
Press Cancel to clear the code, then cut power at the breaker for a minute, restore it, and start a bake cycle to see whether the code returns. If the oven bakes normally afterwards, the fault was transient and worth noting rather than acting on. If either code returns, the control needs testing. Before booking, note whether the cooktop still works normally on a range that has both, since a range where only the oven side is affected tells the technician the fault is confined to the oven control.
⚠ Why You Shouldn't Go Further Than That
- A range is wired to a high-current circuit, and the control is behind a panel with live terminals.
- On a gas range the burner and gas connection sit in the same space as the control wiring.
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.