What LOWER RELAY Means
On an L-Series double oven, this code means the control board has detected a problem with the relay that switches power to the lower oven cavity's heating elements — the relay isn't responding the way the board expects when it tries to turn the lower oven's heat on or off.
Common Causes of LOWER RELAY
- A failed or stuck relay on the control board
- A wiring problem between the board and the lower oven's heating circuit
- A control board problem unrelated to the relay itself but reported through it
🔧 One Safe Check You Can Try
Confirm whether the problem is isolated to the lower cavity by testing whether the upper oven still heats and holds temperature normally — that confirms the problem is relay-specific rather than a whole-unit control issue.
⚠ Why You Shouldn't Go Further Than That
- A relay that's stuck closed rather than open means the lower oven's heating circuit could stay energized even when the display shows it off — a real risk if you open the cavity assuming it's safe.
- The relay sits on the same control board as other safety functions, so replacing the board incorrectly can affect more than just the lower oven.
- Testing a relay while the unit is powered is a shock risk best left to a technician with the right equipment.
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.