ERROR CODE EXPLAINED
Jennair Wall Oven
Jennair Wall Oven 4d42 Error Code
What it means
JennAir indicates the oven cooling fan speed is too high. Possible causes include restricted airflow, the oven cooling fan, or associated wiring.
Try this first
- Turn the oven circuit breaker(s) off for 1 minute.
- Restore power at the circuit breaker(s).
- Monitor the oven for 1 minute to see whether the code returns.
- Confirm normal oven operation.
Can I keep using it?⚠ Troubleshoot before continuing
Repair usually required?⚠ Service may be needed if the issue returns
If the error keeps returning
If the issue returns after following JennAir's troubleshooting steps, use the linked JennAir Product Help article for additional manufacturer guidance and service options.
Official source
Troubleshooting information verified against manufacturer support documentation.
View manufacturer support page →Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.