Wolf Dual Fuel and Pro Induction Knob Code LO: Oven preheating, not an error

What LO means

On Wolf dual fuel DFxx50 and Pro induction IRxx51 ranges, such as the DF30450/S/P and IR30451/S/P, LO shown on the oven knob display is not an error. It means the oven is preheating, and it is used across DF, IR, E, L, and M Series ovens. Owners may see LO and worry, but it simply tells you the oven has not reached the set temperature yet. The display changes once the set temperature is reached.

Common causes of LO

Oven still heating toward the set temperature
Normal preheat indication on the knob display

✓ One safe check you can try

1. Leave the door closed and wait for the preheat to finish. 2. Check that you set a temperature and a mode. 3. Watch for LO to be replaced by the normal display or a preheat chime. 4. If LO stays on for much longer than a normal preheat, or the oven stays cold, call us.

! Why to stop there

A normal preheat should not need a repair
A long preheat can point to an element or sensor
We check heating performance only if the timing is wrong
Written price first, and 30 days of warranty on repairs

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Range codes

E05Wolf Induction Range Cooktop Code E05: LIN communication, no generator response 07ERR 07 on a Wolf Legacy Dual Fuel Range: Control Head Communication Lost E07Wolf Induction Range Cooktop Code E07: Primary control too hot 08Wolf Legacy Dual Fuel Range ERR 08 Code: EEPROM Checksum Wrong at Power-Up E09Wolf Induction Range Cooktop Code E09: Coil over temperature 09Wolf Legacy Dual Fuel Range Code ERR 09: Meat Probe Shorted E15Wolf Induction Range Cooktop Code E15: Generator voltage too low 0BWolf Legacy Dual Fuel Range ERR 0B Code: Calibration-Phase Converter Error

LOLO questions

Does LO mean something is broken?

No. LO is a preheating indicator on the knob display. It disappears when the oven reaches temperature, and the oven then behaves normally. It is simply a status display.

How long should LO stay on?

It depends on the temperature you set, but a typical preheat takes several minutes. If LO stays on for an unusually long time, the oven may not be heating properly.

Does LO appear on all Wolf ovens?

On DF, IR, E, L, and M Series ovens covered here, yes. It is part of the way these ovens show that preheating is still in progress.