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Middleby Marshall 75729 - User Manual

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Middleby Cooking Systems
1400 Toastmaster Drive
Elgin, IL 60120-9272
1.847.741.3300
75730 Instructions for Kit #75729 = West Temperature Controller • Rev. H • 09-27-21 Page 1 of 8
PN 75729 = KIT, WEST TEMPERATURE CONTROLLER
PURPOSE
This kit is being installed to replace previous Honeywell, West, and analog temperature controllers. Analog
temperature controllers include P/N 28071-0012, 28071-0018, and 34983.
For use in the following ovens: PS520, PS528, PS629, PS536, PS540, PS555, PS570, PS360EWB, PS624,
PS628, PS200, PS200VL, PS360S, PS360WB, PS314
For PS640VE2, PS740VE2, and PS840VE2, use instructions on page 3.
ITEM P/N DESCRIPTION
1 71280 TEMPERATURE CONTROLLER
2 76579 TERMINAL BLOCK, PLUG TYPE, FEMALE
3 75732 PIGTAIL ASSEMBLY
4 75730 INSTRUCTION SHEET (not shown)
5 N/A MISCELLANEOUS EXTRA TERMINALS
Installation Assistance
HIGHLY RECOMMENDED: Use the QR codes below to view Installation and Programming videos
before beginning!
INSTALLATION PROGRAMMING
https://middmarshall.com/install-westcontroller.php https://middmarshall.com/program-westcontroller.php
TOOLS REQUIRED
Wire labels, screwdrivers, wire cutter/stripper, cable ties, electrical tape. For West controller only: spudger tool.
WARNING: Disconnect the oven power before proceeding to remove old or install new wires.

Table of Contents

Questions and Answers

  • C
    Cheryl JonesAug 6, 2025
    How to fix 'or' displayed on Middleby Marshall Temperature Controller?
    • T
      tirwinAug 6, 2025
      If the Middleby Marshall Temperature Controller displays 'or', it means the temperature input is out of range. Check that the thermocouple wires are correctly positioned in the pigtail and on the temperature controller, with the WHITE wire in terminal 2 and the RED wire in terminal 3.
  • T
    twilliamsAug 12, 2025
    What to do if the Middleby Marshall 75729 display is blank?
    • W
      Walter GillAug 12, 2025
      If the Middleby Marshall Temperature Controller display is blank, the controller might not be detecting thermocouples. Double-check that the thermocouple wires are in the correct positions in the pigtail and the temperature controller. Also, make sure the terminal blocks are properly plugged together.
  • A
    Allison CarrollAug 18, 2025
    What to do if the Middleby Marshall Temperature Controller solenoid is not opening?
    • T
      Tyler TravisAug 18, 2025
      If the Middleby Marshall Temperature Controller solenoid is not opening, it might not be receiving power. Ensure that parameter Pb_P is set to 0. Verify that pigtail position 10 is connected to Line voltage and position 11 is connected to the solenoid.
  • D
    Dr. Michael Duncan Jr.Aug 25, 2025
    Why is a relay not working on my Middleby Marshall 75729?
    • D
      Douglas CarsonAug 26, 2025
      If a relay isn't working on your Middleby Marshall Temperature Controller, it might not be getting power. Verify that any jumpers (except L1- 10) were transferred to the terminal block.
  • H
    hallkimberlyAug 30, 2025
    Why is the Middleby Marshall 75729 Temperature Controller display blank?
    • K
      kathrynsimpsonAug 30, 2025
      If the Middleby Marshall Temperature Controller display is blank, there may be an internal fault. Turn off the power for at least 10 seconds, then turn it back on. If the error persists, replace the defective controller.

Summary

Controller Installation and Replacement

Honeywell Controller Replacement With Pigtail

Detailed steps for replacing Honeywell controller using a pigtail adapter for specific ovens.

Honeywell Controller Replacement for PS640 VE2 Series

Instructions for replacing Honeywell controller on PS640VE2, PS740VE2, PS745, and PS840VE2 ovens.

Honeywell Controller Replacement Without Pigtail

Guide for direct wiring replacement of Honeywell controller to the new West controller.

Broken West Controller Replacement

Procedures for removing and replacing a broken West controller unit from the oven.

Old Analog Controller Replacement

Steps to replace older analog temperature controllers with the new West controller.

West Controller Configuration and Programming

Initial Controller Start-up Procedures

Guide to the initial power-on sequence and basic unlock screen navigation.

Manually Loading PID Values

Instructions for manually entering PID values for electric ovens for optimal performance.

Installation Verification and Troubleshooting

Proper Installation Checklist

A step-by-step checklist to verify correct controller installation and oven operation.

Troubleshooting Common Errors

Explains common error codes and provides steps to diagnose and resolve issues.

Controller Operation and Adjustments

Operation Adjustments

How to adjust set points and switch between Fahrenheit and Celsius.

Programming Adjustments

Instructions on how to lock and unlock the set point for security.

Middleby Marshall 75729 Specifications

General IconGeneral
BrandMiddleby Marshall
Model75729
CategoryTemperature Controller
LanguageEnglish