Middleby Marshall PS570S IV. Quick Reference Troubleshooting, Symptom Problem Solution

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SECTION3-OPERATION

IV. QUICK REFERENCE: TROUBLESHOOTING

SYMPTOM PROBLEM

SOLUTION

light is lit, food product is

undercooked

Oven will not turn on at all

Oven shuts down shortly

after it is turned on

The oven temperature ex- ceeded 650°F (343°C), and the burner was automati- cally shut down.

Electrical power may not be reaching the oven, or the controls may be set incor- rectly.

The gas burner did not light within 90 seconds of turn-

ing the "HEAT" (or ) Switch to the “ON” (or "I") position. This automatically engages a safety lockout mode.

Follow the procedures under Daily Shutdown Procedures in this section to shut down the oven. Contact your Middleby Marshall Authorized Service Agent to determine and correct the cause of the condition to prevent damage to the oven.

Check that the circuit breaker/fused disconnect is turned on.

Check that the "BLOWER" (or ) Switch is in the “ON” (or "I") position. The burner cannot engage until the blowers are in operation.

Turn the "HEAT" (or ), "BLOWER" (or ), and "CONVEYOR"

(or )switches to the "OFF" (or "O") position.

Wait for AT LEAST FIVE MINUTES before restarting the oven.

Repeat the Daily Startup procedure.

The oven did not reach 200°F (93°C) within 15 min- utes of startup, and the oven has stopped heating.

appears in display, oven is not heating

Oven will not heat

Controls may be set incor-

 

rectly.

Oven is operating, but little

Air fingers may have been

or no air is blowing from air

reassembled incorrectly

fingers

after cleaning.

Conveyor moves with a

Conveyor may be jammed

jerky motion, or will not

on an object in the oven, or

move at all

conveyor belt or drive chain

 

tension may be incorrect.

Food products are over-

Controls may be set incor-

cooked or undercooked.

rectly.

Turn the "HEAT" (or ), "BLOWER" (or ), and "CONVEYOR"

(or )switches to the "OFF" (or "O") position.

Wait for AT LEAST FIVE MINUTES before restarting the oven.

Repeat the Daily Startup procedure.

Check that the Set Point is correctly set.

Check that both the "BLOWER" (or ) and "HEAT" (or ) Switches are in the “ON” (or "I") position.

If the oven still will not heat, turn the "HEAT" (or ), "BLOWER"

(or ), and "CONVEYOR" (or)switches to the "OFF" (or "O") position.

Wait for AT LEAST FIVE MINUTES before restarting the oven.

Repeat the Daily Startup procedure. Check that the Set Point is above 200°F (93°C).

Turn the oven off, and allow it to cool. Disconnect electrical power to the oven.

Refer to the Maintenance section of your Owner's Manual for instructions on reassembling the air fingers.

Turn the oven off, and allow it to cool. Disconnect electrical power to the oven.

Check if the conveyor is blocked by an object inside the oven.

Refer to the Maintenance section of your Owner's Manual for instructions on reassembling the air fingers.

Check that the set temperature and bake time settings are correct.

IF THESE STEPS FAIL TO RESOLVE THE PROBLEM, CONTACT YOUR LOCAL MIDDLEBY MARSHALL AUTHORIZED SERVICE AGENT. A SERVICE AGENCY DIRECTORY IS SUPPLIED WITH YOUR OVEN.

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Contents Owners Operating Retain This Manual For Future Reference Table of Contents Dimensions General Specifications per oven cavityDescription Conveyor Drive Motor Moves the conveyorInstallation Installation Kit Installation KIT see Figure III. Ventilation System RequirementsRecommendations Other ventilation concernsIV. Assembly Restraint Cable InstallationConveyor Installation Base Pad, Legs, Casters, and Stacking10 Checking the conveyor tension Final Assembly DuringpressuretestingnoteoneofthefollowingVI. Electrical Supply VII. GAS SupplyConnection Gas Utility Rough-In RecommendationsGas Conversion Operation Location and Description of ControlsDailyshutdownprocedure DailystartupprocedureII. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller Actual TempIV. Quick Reference Troubleshooting Symptom Problem SolutionMaintenance Maintenance DailyII. Maintenance Monthly Removing the ConveyorIII. Maintenance Every 3 Months Split Belt Disassembly and CleaningBlower Belts IV. Maintenance Every 6 MonthsLubricating the Blower Fan Bearings KEY Spare Parts KIT DescriptionElectrical Wiring Diagram

PS570S specifications

The Middleby Marshall PS570S is a state-of-the-art conveyor oven that has carved a niche for itself in the fast-paced foodservice industry. Renowned for its remarkable efficiency and versatile cooking capabilities, this oven is an ideal solution for high-volume operations, including pizza shops, restaurants, and other commercial kitchens.

One of the standout features of the PS570S is its advanced cooking technology. The oven incorporates Middleby Marshall’s patented "ShadowBand" technology, which uses a unique heat transfer system that enhances cooking speed and consistency. The design provides optimal heat distribution, ensuring that every item cooked achieves a perfect golden-brown finish while maintaining moisture within the food. This feature is particularly beneficial for products like pizzas, where both crust texture and toppings' freshness are paramount.

The PS570S also boasts an impressive conveyor system that operates at various speeds, allowing operators to customize cooking times based on the specific items being prepared. The oven includes a width-adjustable conveyor belt, catering to a variety of food sizes and types. This flexibility supports an array of menu options, from traditional pizzas to baked goods, ensuring that businesses can meet a diverse range of customer demands.

Moreover, the energy efficiency of the PS570S is notable. The oven utilizes a high-efficiency gas burner system, which significantly reduces energy consumption while maintaining optimal cooking performance. This translates to lower operational costs, making it an attractive choice for budget-conscious establishments looking to maximize their returns.

Another important characteristic is the oven's intuitive digital control system. Operators can easily set cooking times, temperatures, and conveyor speed through an easy-to-navigate interface. The digital controls also allow for programmable recipes, enabling staff to replicate successful dishes with accuracy, thus minimizing waste and maximizing quality.

In terms of maintenance, the PS570S is designed with easy access to internal components, ensuring that cleaning and servicing can be performed quickly and efficiently. The oven's robust construction promises durability, making it a long-term investment for any commercial kitchen.

In summary, the Middleby Marshall PS570S combines advanced heating technology, customizable cooking options, energy efficiency, and user-friendly controls. With its reliability and versatility, it stands out as an essential tool for any operation that prioritizes quality and speed.