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Error code reference

Fisher & Paykel Oven Error Code do.Lo

Door locked condition displayed during pyrolytic cycle, caused by a blackout, selector moved from pyrolytic…

Door locked condition displayed during pyrolytic cycle, caused by a blackout, selector moved from pyrolytic to cooking function, or selector moved to 0 to cancel pyrolytic cycle.

First step from the service manual

Turn the oven function selector to 0 (oven OFF). Wait for the oven cavity to cool down. When the temperature has dropped, 12.00 will flash on the display. Set the programmer time and start the pyrolytic cycle again.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What do.Lo means on a Fisher & Paykel oven

The do.Lo error code on a Fisher & Paykel oven indicates that the door lock mechanism has been activated and is displaying a locked condition outside of a normally completed pyrolytic cycle sequence. The door lock engages automatically when a pyrolytic self-cleaning cycle begins, reaching extremely high internal temperatures that make it unsafe to open the door. The code appears when this locked state persists or is triggered unexpectedly due to an interruption in the cycle rather than a hardware failure of the lock itself.

The three primary causes of do.Lo are a power interruption during the pyrolytic cycle, the function selector being moved away from the pyrolytic setting while the cycle is still active, or the selector being turned to the 0 (off) position to manually cancel the cycle before the oven has cooled sufficiently. In all three scenarios, the oven cavity remains at an elevated temperature and the control system maintains the door lock as a safety measure. The display shows do.Lo to communicate that the door cannot and should not be opened until conditions are safe.

The resolution involves allowing the oven to cool down completely from its elevated pyrolytic temperature. Once the internal temperature drops to a safe threshold, the display will shift to a flashing 12.00, indicating the clock needs to be reset. At that point the door lock disengages and the pyrolytic cycle can be restarted properly if cleaning is still needed. No component replacement is typically required unless the door lock fails to release after full cooling.

Source: manufacturer service documentation.

Common causes of do.Lo

  1. 01

    Power outage during pyrolytic cycle

    Wiring / connection

    If power is interrupted while the oven is running a self-cleaning cycle, the control system loses its cycle state but the door lock remains engaged as a safety default. The oven needs to cool fully before the lock will release.

  2. 02

    Function selector moved away from pyrolytic setting mid-cycle

    Wiring / connection

    Rotating the selector to a cooking function while the pyrolytic cycle is running interrupts the cycle sequence. The door lock remains active because the oven cavity is still at a dangerously high temperature.

  3. 03

    Selector turned to 0 to cancel the cycle prematurely

    Wiring / connection

    Turning the selector to the off position before the pyrolytic cycle completes and cools down causes do.Lo to appear. The door lock stays engaged until the cavity temperature drops to a safe level.

  4. 04

    Door lock mechanism not releasing after cooling

    Part replacement

    In rare cases, if the oven has fully cooled and 12.00 is not flashing on the display, the door lock actuator or associated wiring may have a fault preventing release. This scenario requires further diagnosis of the lock assembly.

See the test procedure for each cause

Frequently asked questions about do.Lo

What does do.Lo mean on a Fisher & Paykel oven?
do.Lo indicates that the oven door is locked due to an interruption of the pyrolytic self-cleaning cycle. This can be caused by a power outage, the function selector being moved during the cycle, or the selector being turned to 0 before the oven cooled down. The door lock is a safety feature that keeps the door shut while the oven interior is still at a high temperature. The code clears on its own once the oven cools sufficiently.
How do I fix the do.Lo error on my Fisher & Paykel oven?
Turn the function selector to the 0 (off) position and leave the oven alone until it cools down completely. When the temperature inside has dropped to a safe level, the display will flash 12.00 to indicate the clock needs to be set. Once you see that flashing prompt, the door lock has released and you can set the time and restart the pyrolytic cycle if needed.
Will resetting the oven clear the do.Lo error code?
A simple reset will not clear do.Lo because the code is tied to the physical temperature inside the oven cavity, not just a control board state. The door lock will only disengage once the oven has cooled to a safe threshold. Attempting to force a reset or override the lock before that point is not recommended.
Is the do.Lo error on a Fisher & Paykel oven a safety concern?
The do.Lo code itself is a safety feature working correctly, not a sign of a dangerous malfunction. The oven is keeping the door locked because the interior is still extremely hot from the pyrolytic cycle. Do not attempt to force the door open while do.Lo is displayed. Wait for the oven to cool and the display to shift to a flashing 12.00 before using the oven again.
How much does it cost to repair a do.Lo error if the door lock does not release?
In most cases, do.Lo requires no repair at all since it resolves once the oven cools down. If the door lock fails to release after the oven has fully cooled, a technician will need to diagnose the lock actuator or wiring, and repair costs in that scenario typically range from around $100 to $300 depending on parts and labor rates in your area.

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