Middleby Control Over Temp

What does Middleby Control Over Temp mean?

The PS740 Series shows Control Over Temp on the message bar when the oven's control compartment runs too hot. The manual attributes this Screen Alert to clogged front filters that restrict cooling airflow to the electronics. The listed solution is to clean or replace the filters so the control compartment returns to a safe operating temperature.

Symptoms

• Message bar displays Control Over Temp
• Front filters appear dirty or blocked
• Reduced cooling airflow to the control compartment
• Risk of the oven shutting down if left uncorrected

Common causes

• Front filters clogged with grease or debris
• Filters overdue for cleaning or replacement
• Restricted cooling airflow to the control electronics

Diagnostic steps

1. 01

   Turn the oven off and let it cool

   Follow the manual's cleaning and servicing procedure before working near the control compartment.

2. 02

   Inspect the front filters

   Check the front filters that cool the control compartment for grease buildup or blockage.

3. 03

   Clean or replace the filters

   The manual's solution for Control Over Temp is to clean or replace the front filters to restore cooling airflow.

4. 04

   Restart and confirm the alert clears

   Return the oven to normal startup and verify the Control Over Temp message no longer appears.

When to call a professional

This alert is normally cleared by cleaning or replacing the front filters, which the manual treats as routine maintenance. Call a Middleby Marshall Authorized Service Agent if the Control Over Temp message persists after the filters are clean, since a continued over-temperature reading with clear airflow points to a cooling-fan or control fault that needs qualified diagnosis.