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Service Bulletins

HOW TO USE THIS LIST

Scroll through the list below until you find a bulletin that you need.  A description
of each bulletin is shown in the SUBJECT column.  If the bulletin was originally
published with an attachment, a description is shown in the ATTACHMENT column.

To download a bulletin,
click on the highlighted bulletin number (MM-###).


To download an attachment,
click on the highlighted attachment description.


This reference shows all service bulletins published 1990 or later.  For bulletins
published before 1990, refer to the Middleby Marshall Service Bulletin
Collection, 1982-1999
, P/N 30609.  This document can be ordered normally from the
Middleby Parts Department, and is free of charge to Authorized Service Agencies.

Downloadable service bulletins and attachments are provided for 1998-2001.
If you require a copy of an earlier bulletin, refer to the Service Bulletin Collections
(P/Ns 38609 and 38610).

 
Middleby Marshall Service Bulletin Collections
Date Part number File size Subject Attachment Attachment
file size
4/19/02 47413 -- Service bulletin collection, 1/01-12/01 No --
8/3/01 46448 -- Service bulletin collection, 1/00-12/00 No --
1/1/00 38609 -- Service bulletin collection, 1/82-12/99 No --
Individual Service Bulletins
2003

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."

Date Bulletin
number
File size Subject Attachment Attachment
file size
-- -- -- -- -- --
-- -- -- -- -- --
2002

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."

Date Bulletin
number
File size Subject Attachment Attachment
file size
12/23/02 MM-208-A 34kb Scheduling information for MCSG Technical Services and Parts Departments during 2002 holiday season No --
10/29/02 MM-208 256kb Update on manufacturing of PS200-series gas ovens with the PID modulating gas system No --
5/31/02 MM-207 163kb Introduction of PS536 Update and Service Kits - Rear wall, conveyors, and bearings
SEE ALSO MM-192 (2001), MM-203 (2002)
Rear wall kit instructions
AND
Conveyor kit instructions
AND
Bearings kit instructions
Rear wall kit instructions 379kb;
Conveyor kit instructions 325kb;
Bearings kit instructions
272 kb
5/31/02 MM-206 163kb PS536 conveyor drive motor sprocket and set screw modification No --
5/31/02 MM-205-A 154kb Orifice part number correction for PS536 LP ovens (domestic and std. export)
UPDATES MM-188 (2001)
No --
5/31/02 MM-205-A 39kb Main orifice size change for PS536 ovens operating on propane gas No --
5/31/02 MM-204 49kb New combination gas control valve for CE-approved Middleby Marshall ovens No --
5/28/02 MM-188-A 39kb Availability of rotary switch kits for Middleby ovens
UPDATES MM-188 (2001)
No --
5/31/02 MM-203 40kb Krytox grease and bearings as required stocking parts for PS536; recommended greasing interval for PS536 blower shaft bearings
SEE ALSO MM-192 (2001)
Reprint of MM-192 (9/01) 53kb
5/28/02 MM-202 32kb Update to warranty and RGA claim procedure for damaged parts shipments No --
5/16/02 MM-201 31kb Update to Chuck E. Cheese PS200 temperature calibration procedure Instructions 291kb
4/19/02 MM-200 35kb Availability of 2001 calendar year bulletin collection, P/N 47413 No --
4/17/02 MM-194-A 46kb Update to instructions for PS536 Stacking Hardware Kit, P/N 46494
UPDATES MM-194 (2001)
No --
4/16/02 MM-199 112kb Introduction of Middleby Marshall Technical Service Manual, P/N 47829 No --
1/8/02 MM-198 49kb Introduction of PS570G, PS555G, PS555E No --
1/8/02 MM-197 38kb Announcement of factory service training schedule for 2002 No --
2001

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."

Date Bulletin
number
File size Subject Attachment Attachment
file size
12/17/01 MM-196 34kb Scheduling information for MCSG Technical Services and Parts Departments during 2001 holiday season No --
12/11/01 MM-195 169kb Defective Conveyor Speed Controller Kits (P/N 37337)
SEE ALSO MM-178 (2000)
No --
11/21/01 MM-194 33kb Introduction of Stacking Hardware Kit for PS536 Ovens, P/N 46494 Kit instructions 89kb
10/4/01 MM-193 192kb Correction of flashback condition in PS536 gas ovens (domestic & std. export version); approval of PS536 Rear Compartment Update Kits for propane gas ovens
UPDATES MM-191-A (2001)
Supplement for gas conversion instructions 159kb
9/26/01 MM-192 53kb Introduction of DuPont Krytox® grease in blower shaft bearings for PS536 ovens
SEE ALSO MM-191-A (2001)
No --
9/27/01 MM-191-A 87kb Release of PS536 Rear Compartment Update Kits; updates to PS536 Gas Conversion Kits and procedures
REPLACES MM-191 (2001, obsolete)
UPDATED BY MM-193 (2001)

SEE ALSO MM-192 (2001)
Rear compartment update kit instructions
AND
Supplement for gas conversion kit instructions
Rear compartment update kit instructions 424kb;
gas conversion supplement
96kb
9/13/01 MM-190 382kb Auto-tune procedure for current Digital Temperature Controller for Middleby Marshall ovens, P/N 36939 No --
8/24/01 MM-189 47kb New conveyor gear motors, brushes, and pickup clamps for Middleby Marshall ovens No --
8/22/01 MM-188 61kb Availability and compatibility of rotary switches and contact blocks for Middleby Marshall ovens No --
8/3/01 MM-187 180kb Availability of 2000 calendar year bulletin collection, P/N 46448 No --
8/3/01 MM-186 248kb Service information for the modulating gas valve system No --
7/6/01 MM-185 140kb Availability of Papa John's PS570 and PS555 retrofit kits; availability of PS570/555 cool handle extension No --
7/1/01 MM-184 135kb Bake time and temperature specifications for Papa John's restaurants No --
4/25/01 MM-183-A 46kb Orientation and part numbers for PS555, PS570, and PS570S blower wheels and cooling fans
REPLACES MM-183 (2001, obsolete)
No --
3/14/01 MM-182 221kb New center lift tube for stacking PS555 ovens No --
2/28/01 MM-181 136kb End stop and side stop deburring No --
2000

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."

Date Bulletin
number
File size Subject Attachment Attachment
file size
11/22/00 MM-180 84kb Scheduling information for 2000 holiday season;
2001 service training schedule
No --
10/18/00 MM-179 59kb Incorrect Labeling on Conveyor Speed Controller kits (P/N 37337)
SEE ALSO MM-177-A (2000)
No --
8/30/00 MM-177-A 397kb Additional information on Conveyor Speed Controller kits
UPDATE TO MM-177 (2000)
No --
8/29/00 MM-178 511kb Defective Conveyor Speed Controller Kits (P/N 37337)
SEE ALSO MM-195 (2001)
No --
8/18/00 MM-177 396kb Availability of Conveyor Speed Controller kits
SEE ALSO MM-177-A (2000)
No --
7/10/00 MM-176 90kb Introduction of 3D air finger labels on new Papa John's ovens No --
3/29/00 MM-175 36kb Two thermocouples shipped with new PS300 series ovens
SEE ALSO MM-166 (1999)
Owner's manual supplement 55kb
2/28/00 MM-174 54kb New publication and training updates on Middleby website,  www.middleby.com No --
2/11/00 MM-173 48kb Defective conveyor drive gear motors produced 12/99 No --
2/9/00 MM-172 40kb Service parts for PS555 No --
1/26/00 MM-171 39kb New PS314SBI update kits, P/Ns 41927 (Conveyor Kit) & 42564 (Conveyor & Belt Kit) Kit instructions 232kb
1999

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."

7/8/99 MM-170 50kb New Papa Johns PS360WB70 cooling fan collar kit P/N 39352 Kit instructions 100kb
5/17/99 MM-169A 44kb Pizza Hut oven lockout panel removal
SEE MM-142 (1995)
No --
5/7/99 MM-168 59kb New high limit conversion kit for PS300 series ovens, P/N 39733
SEE MM-152 FOR PS200 AND PS570 HIGH LIMIT KITS
Kit instructions 432kb
3/25/99 MM-167 100kb Digital temperature controller models - when to use external varistors, interchangeability of cases No --
2/25/99 MM-166 202kb New Papa Johns PS360WB second thermocouple and "PJ99" air finger arrangement
SEE ALSO MM-175 (2000)
Installation
instructions
145kb
2/5/99 MM-165 50kb PS200VL Series, CE versions - differences between standard PS200 series No --
1998

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."

12/7/98 MM-164 167kb New digital temperature controller kit for ovens with modulating valves OR solenoid valves, P/N 36939
SEE ALSO MM-159, S/B #135 (1993), S/B #134 (1992)
Kit instructions 575kb
8/12/98 MM-163 37kb Middleby Marshall Service Bulletin collection, 1/95-6/98 No --
8/17/98 MM-162 18kb Removal of 12"/305mm conveyor belt sections from Installation Kits No --
3/23/98 MM-161 76kb New CE solenoid valves, kit P/Ns 37851 (120V coil) and 37770 (220V coil) Kit instructions 203kb
1/20/98 MM-160 51kb New CE Installation Checklist, P/N 37420 Checklist 451kb
2/6/98 MM-159 41kb New digital temperature controller kit for NON-CE ovens with solenoid valves, P/N 37626
OBSOLETE EXCEPT FOR DIRECT REPLACEMENT OF THIS CONTROLLER
SEE MM-164 FOR CURRENT KIT
SEE ALSO S/B #135 (1993), S/B #134 (1992)
Kit instructions 332kb
-- MM-158 -- NOT RELEASED -- --
-- MM-157 -- SEE 1997 -- --
-- MM-156 -- NOT RELEASED -- --
1/20/98 MM-155 33kb New gas conversion kits for Midco burner
OBSOLETE EXCEPT FOR PS360WB70 OVENS EQUIPPED WITH MIDCO BURNER
Kit instructions
(1 each:
LP to Nat. Gas,
Nat. Gas to LP)
87kb (each)
1997

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."
  NOTE:  Downloads for 1997 Service Bulletins are not available at this time.

12/2/97 MM-157 -- New USA & standard (non-CE) international Installation Checklist, P/N 37201 Checklist --
-- MM-156 -- NOT RELEASED -- --
-- MM-155 -- SEE 1998 -- --
-- MM-154 -- NOT RELEASED -- --
6/3/97 MM-153 -- Pizza Hut PS570S flame gate adjustment No --
5/12/97 MM-152 -- New high limit kits for PS200 series (P/N 36461) and PS570/570S ovens (P/N 36463)
SEE MM-168 FOR PS300 HIGH LIMIT KIT
Kit instructions --
2/28/97 MM-151 -- New ALTERNATE replacement Dungs Air Switch kit Kit instructions --
2/21/97 MM-150 -- Middleby Marshall Service Bulletin index listings for 1995 and 1996 No --
1/2/97 MM-149 -- New changes to conveyor motor and sensor wiring Instructions for shielded cable installation --
-- MM-148 -- SEE 1996 -- --
1/29/97 MM-147A -- New instructions for MM-147 in CE countries
UPDATE TO MM-147 (1996)
Kit instructions --
-- MM-145
through
MM-147
-- SEE 1996 -- --
1/9/97 MM-144B -- New part numbers for Type J thermocouples
UPDATE TO MM-144 (1996)
SEE ALSO MM-144A (1996), MM-148 (1996)
Kit instructions --
1996

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."
  NOTE:  Downloads for 1996 Service Bulletins are not available at this time.

10/12/96 MM-148 -- Features of new Type J thermocouples
SEE ALSO MM-144 (1996), MM-144-A (1996), MM-144B (1997), MM-148 (1996)
No --
9/19/96 MM-147 -- New air switch kits, P/Ns 35624 (USA) and 35625 (CE and other export)
SEE ALSO MM-147A (1997)
Kit instructions --
9/10/96 MM-146 -- New pilot tee kit; pilot outage remedy Kit instructions --
-- MM-145 -- NOT RELEASED -- --
5/30/96 MM-144A -- New part numbers for Type J thermocouples
UPDATE TO MM-144
SEE ALSO MM-144B (1997), MM-148 (1996)
No --
5/1/96 MM-144 -- New Type J thermocouples - individual and kits - kit P/N 33984 (PS300, PS500) and 33985 (PS200)
SEE ALSO MM-144A (1996), MM-144B (1997), MM-148 (1996)
Kit Instructions --
1995

  NOTE:  All Middleby Marshall service bulletins published from 1995-2002 use the prefix "MM."
  NOTE:  Downloads for 1995 Service Bulletins are not available at this time.

12/13/95 MM-143A -- Addendum to MM-143 - Replacing PS300 series blower wheels during oven startups
UPDATE TO MM-143
No --
12/13/95 MM-143 -- Defective blower wheels on PS300 series ovens - stocking check
SEE ALSO MM-143A
No --
8/17/95 MM-142 -- Pizza Hut PS360WB - air fingers, plenum settings, lockout panel
SEE MM-169A (1999)
No --
6/12/95 MM-141 -- Red Lobster PS200 series ovens - service and safety issues with similar air and water hoses No --
-- MM-134 through MM-140 -- SEE S/B #134 - S/B #140, 1992-1994 -- --
4/7/95 MM-133B -- New changes to dip switches in conveyor speed controller kit, P/N 42810-0133
UPDATE TO S/B #133 (1992)
SEE ALSO S/B #133A (1993)
Diagnostics instructions --
1994

  NOTE:  All Middleby Marshall service bulletins published 1994 or earlier use the prefix "S/B" instead of "MM."
  NOTE:  Downloads for 1994 Service Bulletins are not available at this time.

8/12/94 S/B #140 -- New inverters used on blower motors for Dominos PS360Q ovens Inverter operating instructions, troubleshooting information, wiring diagram --
4/21/94 S/B #139 -- Temperature controller programming change - oven warmup changed from 5 to 15 minutes - affects Controller 28071-0028 and Kit 42810-0138 No --
3/28/94 S/B #138 -- New air finger configuration for Pizza Hut PS360S ovens - gooseneck finger introduction Finger arrangement and parts listing --
3/21/94 S/B #137 -- New pilot tee kit, P/N 30185 Kit instructions --
-- S/B #133
through
S/B #136
-- SEE 1992-1993 -- --
12/19/94 S/B #132A -- New gas conversion kits for PS360WB ovens
UPDATE TO S/B #132 (1992)
Kit instructions --
1993

   NOTE:  All Middleby Marshall service bulletins published 1994 or earlier use the prefix "S/B" instead of "MM."
   NOTE:  Downloads for 1993 Service Bulletins are not available at this time.

9/28/93 S/B #136 -- New Filter Capacitor Assembly for Digital Temperature Controllers No --
3/8/93 S/B #135 -- New digital temperature controller kit, P/N 42810-0138
OBSOLETE EXCEPT FOR DIRECT REPLACEMENT OF THIS CONTROLLER
SEE MM-164 (1998) FOR CURRENT KIT
SEE ALSO MM-159 (1998), S/B #134 (1992)
Kit instructions --
-- S/B #134 -- SEE 1992 -- --
1/29/93 S/B #133A -- New conveyor speed controller kit, P/N 42810-0133
UPDATE TO S/B #133 (1992)
SEE ALSO MM-133B (1995)
Kit instructions --
1992

   NOTE:  All Middleby Marshall service bulletins published 1994 or earlier use the prefix "S/B" instead of "MM."
   NOTE:  Downloads for 1992 Service Bulletins are not available at this time.

11/3/92 S/B #134 -- New digital temperature controller kit, P/N 42810-0128; dial-type temperature controllers (P/Ns 28071-0012, -0018) become obsolete
KIT P/N 42810-0128 IS OBSOLETE 
SEE MM-164 (1998) FOR CURRENT KIT
SEE ALSO MM-159 (1998), S/B #135 (1993)
Kit instructions  
1/10/92 S/B #133 -- New conveyor speed controller, P/N 28074-0018
SEE ALSO S/B #133A (1992), MM-133B (1995)
Installation and diagnostics instructions  
1/10/92 S/B #132 -- New gas conversion kits for PS200/300/500 series ovens
SEE ALSO S/B #132A (1994)
Kit instructions --
1991

   NOTE:  All Middleby Marshall service bulletins published 1994 or earlier use the prefix "S/B" instead of "MM."
   NOTE:  Downloads for 1991 Service Bulletins are not available at this time.

11/27/91 S/B #131 -- New combination gas control valve (safety regulator) kit - P/N 42810-0121 replaces 28092-0013 Kit instructions --
11/15/91 S/B #130 -- Warranty length clarification No --
8/23/91 S/B #129 -- New conveyor pickup assembly - P/N 27170-0263 replaces 27084-0005 Replacement instructions --
7/22/91 S/B #128 -- New pilot ignitor assembly - P/N 42810-0117 replaces 27363-0001 Replacement instructions --
4/16/91 S/B #127 -- New conveyor speed controller upgrade No --
4/8/91 S/B #126 -- Component parts for dial-type temperature controllers 28071-0012 and 28071-0018 become obsolete No --
2/11/91 S/B #125 -- New upgrade - PS310/360 series fuses from 30A to 40A Upgrade instructions --
2/11/91 S/B #124 -- PS300/350 series oven Johnson gas control valve becomes obsolete No --
-- S/B #122
through
S/B #123
-- SEE 1990 -- --
2/8/91 S/B #121A -- Part number change for PS200 Indirect Fan Drive Kit - 49400-0125 changes to 49810-0021
UPDATE TO S/B #121 (1990)
No --
1990

  NOTE:  All Middleby Marshall service bulletins published 1994 or earlier use the prefix "S/B" instead of "MM."
  NOTE:  Downloads for 1990 Service Bulletins are not available at this time.

11/30/90 S/B #123A -- Procedure to remove ground wire when upgrading ignition module from previous (P/N 27161-0004) to current (P/N 42810-0114) version
UPDATE TO S/B #123
Ground wire removal procedure --
10/15/90 S/B #123 -- New ignition module kit - P/N 42810-0114 replaces 27161-0004
SEE ALSO S/B #123A
Replacement procedure --
9/1/90 S/B #122 -- New non-illuminated selector switches Wiring procedure for switch replacement --
7/24/90 S/B #121 -- New PS200 Indirect Fan Drive Kit - P/N 49400-0125
SEE ALSO S/B #121A (1991)
Installation instructions and parts list --
-- S/B #119
through
S/B #120
-- NOT RELEASED -- --
1/23/90 S/B #118 -- Warranty submission procedure No --
 
For bulletins published before 1990,
refer to the Middleby Marshall Service Bulletin Collection, 1982-1999, P/N 38609.
Click here for information on this Collection.

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