What does 'Probe 1 open' mean on Alto-Shaam 300-TH Oven?
- MMichelle GalvanAug 31, 2025
If the Alto-Shaam oven displays a 'Probe 1 open' error, it means an open circuit has been detected on the sensor wires. Check: 1. Sensor connection circuit, upper 2. Sensor compartment 3. Control Board












