Middleby Marshall PS536-Series installation manual Section Troubleshooting

Page 49

SECTION 5

TROUBLESHOOTING

SECTION 5

TROUBLESHOOTING

PROBLEM:

PRODUCTS ARE OVERCOOKED

OR UNDERCOOKED

PROBLEM:

OVEN BLOWER AND CONVEYOR OPER- ATE, YET THE OVEN IS NOT HEATING

Check for correct setting of conveyor speed control.

Set the conveyor speed control at correct setting.

Check for correct

setting on tempera-

ture controller.

Turn temperature control to correct setting.

Reset the temperature controller to a new setting (above 200°F), after turning the BLOWER/HEAT switch to off for 30 seconds.

Start the oven again. If the oven still does not heat, call your Middleby Marshall Service Agency.

Verify the food

preparation process.

If products still cook incorrectly,

call your Middleby Marshall

Service Agency.

PROBLEM:

OVEN DOES NOT HEAT

Check to see if both BLOWER/ HEAT switch are in the “ON” or “I” position.

If oven does not heat, call your

Middleby Marshall Service Agency.

PROBLEM:

CONVEYOR WILL NOT HOLD PROPER

SPEED OR WILL NOT RUN AT ALL

Check whether the conveyor is jammed on something in oven.

Check for proper tension of conveyor drive chain and conveyor belt. Refer to Section 4 for correct procedure.

Check that the conveyor

drive sprocket is tight.

If conveyor still does not run correctly, contact

your Middleby Marshall Service Agency.

PROBLEM:

BLOWER MOTOR IS RUNNING, YET LITTLE OR NO AIR BLOWS FROM AIR FINGERS

Air fingers reassembled incorrectly,

after cleaning.

Assemble air fingers correctly, after cleaning. Refer to Section 4 procedure, or call your Middleby Marshall Service Agency.

PROBLEM:

OVEN DOES NOT TURN ON WHEN ITS

SWITCHES ARE TURNED ON

Check that all electric supply switches are set to the “ON” or “I” position. Then, start the oven.

If oven still will not start, contact your Middleby

Marshall Service Agency.

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Contents Owners operating Page Iii Middleby MarshallTable of Contents Model Identification Section DescriptionSeries PS536ES Electrical Specifications PS536ES Series Oven SpecificationsDimensions General specifications per oven cavityHeat Transfer and How It Works II. Principle of AIR FlowAir Fingers II. Principle of AIR FlowIII. Component Function Figure PS536ES-Series Oven Components LocationsIII. Component Function Cooling Fan F2. Blank Plates Blank Plates two sizes and an Air FingerUnloading Section InstallationInstallation PS536ES Oven Installation Required Kits and EquipmentInstallation KIT see Figure Model PS536ES Single Oven Dimensions Model PS536ES Double Oven Dimensions Model PS536ES Triple Oven Dimensions Restraint Cable InstallationInstallation II. Ventilation Guidelines 11. Typical Electric Oven Data Plate IV. Electric Supply for Electrically Heated Ovens13. Installing Rear and End Stops VI. Conveyor Rear Stop and END Stop InstallationControl Functions Section OperationII. Component Information and Location Figures 3-1 Conveyor Measuring Conveyor SpeedSee Figures 3-4 Power Failure Startup Procedures Daily StartupShutdown Procedure III. STEP-BY-STEP OperationLocation and Description of Controls II. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller Symptom IV. Quick Reference TroubleshootingSection Maintenance Exterior Maintenance DailyCooling Fan Crumb Pans FigureII. Maintenance Monthly Section Maintenance Standard Fingers Air Fingers Disassembly For CleaningReassembly of Air Fingers Cleaning the WindowBack in the same way they came out Section Maintenance Reinstall End Plugs Checking Conveyor Belt Tension Conveyor Reassembly Into OvenConveyor Belt Link Removal Attaching Drive Chain Replacing Conveyor BeltLower End Plug Cleaning the Blower/Fan Motor III. Maintenance Every 3 MonthsVentilation Electrical TerminalsSplit-belt Conveyor Shaft Cleaning Section Maintenance Important Notices IV. Maintenance Every 6 MonthsKEY Spare Parts KIT Section Troubleshooting Section Troubleshooting Parts List Parts List QTY Description Oven PANELS, Window and LegsParts List English Parts List Blower and Shroud Parts List Item QTY Conveyor Description ConveyorParts List Split Belt Conveyor Element Machinery Compartment Section Parts List Electrical Electrical Section Schematics Electrical Schematics Section Hour Service Hotline