Door latch switch
Common interlock fault part on appliance no-start errors.
Garland commercial oven error-code guide for cavity sensor faults, high-limit trips, ignition failures, fan-motor errors, and control-board checks.
Garland commercial oven error-code guide for cavity sensor faults, high-limit trips, ignition failures, fan-motor errors, and control-board checks.
Likely parts to price
Common interlock fault part on appliance no-start errors.
Higher-cost board to price after checking sensors and wiring.
Useful when faults follow intermittent connectors or communication errors.
Garland (a Welbilt brand) manufactures commercial ranges, convection ovens, and deck ovens for professional kitchens. Electronic Garland convection ovens display fault codes on the control panel.
| Code | Meaning |
|---|---|
| E1 | Cavity temperature sensor fault |
| E2 | High temperature safety trip |
| E3 | Ignition failure (gas models) |
| E4 | Blower / fan motor fault |
| Er | General control error |
Test the cavity sensor resistance or thermocouple output. Open circuit or out-of-range reading = replace sensor. Use Garland OEM sensor for correct calibration.
The oven temperature exceeded the safety threshold. Check thermostat setting, high-limit cutout continuity, and gas valve closure. Do not use until the root cause is identified.
Check gas supply is on and at correct pressure. Test the igniter spark gap and electrode condition. Verify the gas valve opens on call for heat. Check flame sensor rod for carbon deposits.
Convection blower motor failure or obstruction. Remove any obstructions from the blower wheel. Check motor windings and run capacitor.
Power cycle the oven. If Er persists, the control board has an internal fault. Contact Garland service.
| Part | Notes |
|---|---|
| Cavity temperature sensor | Garland OEM part — thermocouple or RTD depending on model |
| Igniter / electrode | For E3 |
| Blower motor | For E4 |
Before ordering, match the refrigeration part to the model number, electrical rating, and failure symptom. Check current prices on Amazon - prices and availability change frequently.
Gas valve, high-limit, and control board work requires a certified commercial kitchen equipment technician.