Middleby Marshall PS624E installation manual Section Troubleshooting

Page 41

SECTION 5

TROUBLESHOOTING

SECTION 5

TROUBLESHOOTING

PROBLEM:

PRODUCTS ARE OVERCOOKED

OR UNDERCOOKED

PROBLEM:

OVEN BLOWER AND CONVEYOR

OPERATE, 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 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 switch and 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 Section Description PS624 Series Oven Specifications PS624-Series Oven Components Locations II. Component Function Cooling Fan Air Finger Section Installation Unloading Section Installation03  /6%. .34!,,!4 152%$ +43 !.$.%150-%.4 Model PS624 Single Oven Dimensions Model PS624 Double Oven Dimensions Model PS624 Triple Oven Dimensions Electric Supply to be Provided by Customer II. Ventilation Guidelines11. Junction Connection Box IV. Electric SupplyControl Functions Section OperationBlower Switch Door Safety SwitchHeat / Conveyor Switch Temperature ControllerSee Figures 3-4 Measuring Conveyor SpeedConveyor Power Failure Startup Procedures Daily StartupShutdown Procedure III. STEP-BY-STEP OperationControl Panel IV. Normal Operation STEP-BY-STEP Daily Startup ProcedureSP Lock Symptom Quick Reference TroubleshootingSection Maintenance Exterior Maintenance DailyCooling Fan Conveyor Belt FigureRemoving Conveyor From Oven For Cleaning II. Maintenance MonthlyOosen 4WOO3CREWS and 2EMOVEE#HAIN3PROCKET #OVER Standard Fingers Air Fingers Disassembly For Cleaning11. Standard Lower Finger Reassembly of Air FingersCenter Spacer Extended Lip Flange Finger Manifold Reinstall End Plugs Checking Conveyor Belt Tension Conveyor Reassembly Into OvenConveyor Belt Link Removal Attaching Drive Chain Push and hold conveyor end down to reinstall the chainImportant Notices III. Maintenance 3 and 6 MonthPS624-SERIES Electric Oven KEY Spare Parts KIT KEY Spare Parts KITSection Maintenance Section Troubleshooting Section Troubleshooting Section Electrical Schematics Wiring Diagram, E380V 17.44 kW, PS624E/PS824E Wiring Diagram, E380V 17.4 kW, PS624E/PS824E CE Wiring Diagram, 400-416V 4 kW, PS624E/PS824E Section Electrical Schematics