PizzaOvenRepair.center (844) 747-3662Mon–Sat, 8am–8pm Book a visit
The loading end of a stainless conveyor pizza oven in a pizzeria, the pizza oven's wire belt empty and still at the tunnel mouth, the tunnel dark, nobody at the oven.

Middleby Marshall REAR BELT JAMMED: the back conveyor lane has stopped

The rear belt on a split conveyor usually runs the second bake time, often for a different product.

(844) 747-3662

Mon–Sat, 8am–8pm

  • Conveyor belt and drive
  • Conveyor oven belt and motor repair
  • Source: Middleby Marshall

Book a visit

Three short steps, about a minute.

or call (844) 747-3662

What REAR BELT JAMMED
actually means.

The rear belt on a split conveyor usually runs the second bake time, often for a different product. If it is overloaded or caught, the control stops it and names it on the screen. X-Series ovens call it BACK BELT STALLED, and the front lane can keep working.

Middleby Marshall pizza oven display · also shown as Rear Belt jammed, BACK BELT STALLED

What to do when REAR BELT JAMMED shows on the pizza oven

Kind of codeConveyor belt and drive

The belt stopped, slowed or lost track of its speed. Sometimes a pan, a lid or a clump of burnt cheese has jammed the belt against the frame; more often the drive motor is worn, a coupling or a chain has slipped, or the speed sensor no longer reports what the belt is doing, so the bake time on the display stops matching the pies. Clearing the belt path once the oven is off and cold is a fair first step; a motor that hums without turning or a belt that has stretched out of true is a visit.

Usually leads toConveyor oven belt and motor repair

Conveyor oven belts, sprockets, drive motors, gearboxes and speed controls repaired, so pizzas ride through the tunnel at the set speed and never stall inside.

Shows up asPizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display

A pizza oven error code shows as letters or numbers on the display of a conveyor, deck or rapid-cook oven, a flashing light on its panel, or a message about ignition, heat, belt or airflow.

MakeMiddleby Marshall

A Middleby Marshall conveyor call is about the line: how many pies came out right before the belt slowed, stalled or the crust went pale.

SourceMiddleby Marshall PS640 series gas oven owner's operating and installation manual (60251 Rev J)

PS638 and PS640 gas touch screen ovens print REAR BELT JAMMED; X70G, X55G and X55GWB print BACK BELT STALLED.

Before you book,
in this order.

Each step comes from Middleby Marshall's own guidance for REAR BELT JAMMED on its pizza ovens. Follow it to the end: the last card says whether this is a visit.

01

Switch the oven off and wait for it to cool; the rear belt sits deeper in the opening and is harder to reach safely.

02

Clear any product, pan or debris caught on the rear lane at the loading and unloading ends.

03

Restart the oven, or press Dismiss on an X-Series and follow the prompts.

04

Book a visit if the rear belt still will not move with nothing on it.

Still there?

It usually turns into conveyor oven belt and motor repair. Book with the code and the model number.

What not to do

A rear belt that moves but bakes darker or lighter than the front is a time or air setting, not this message. BACK BELT COMM LOST means the rear drive board has tripped its breaker, a different fix.

What you may
notice with it.

The pizza oven problems REAR BELT JAMMED tends to arrive with. Answer these at the pizza oven before anyone is booked.

All problems

Before you call

Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display

All 7 causes, cheapest first

It also comes with

Close view of the dark digital control panel on the side of a stainless conveyor pizza oven, one abstract amber indicator glowing beside unlit segments, the edge of the pizza oven belt blurred behind it. Problem

Pizza Oven Error Code on a Deck, Conveyor or Rapid-Cook Display

7 causes, cheapest first

Where REAR BELT JAMMED usually leads

Conveyor oven belt and motor repair.

Conveyor belt shortened or replaced, sprockets, chain, drive motor, gearbox or speed control · moderate.
Book a visit What the job involves

Middleby Marshall
pizza ovens.

A Middleby Marshall conveyor call is about the line: how many pies came out right before the belt slowed, stalled or the crust went pale.

Middleby Marshall pizza oven repair

More Middleby Marshall codes

RESET IGNITIONHEATING ERRORPROBE # OPENHIGH TEMP ERRORFRONT BELT JAMMEDFRONT BELT COMM LOSTSENSOR OPENMAIN BLOWER ERRORCombustion Blower problem**00FFCLEAN FILTERSCONTROL OVERTEMP
All 16 Middleby Marshall codes

Conveyor belt and drive on other makes

TurboChef F9
A stainless conveyor pizza oven on a pizzeria counter, the conveyor pizza oven's wire belt carrying two pizzas out of the tunnel mouth, a stacked tunnel oven above it, a tiled wall behind, warm indoor light. Middleby Marshall builds this

Conveyor and rapid-cook pizza oven

A tunnel oven whose wire belt carries pizzas through hot air jets, and the countertop rapid-cook ovens that bake a pizza in minutes.

In Middleby Marshall's own words

Rear belt has stopped
Middleby Marshall PS640 series gas oven owner's operating and installation manual (60251 Rev J) Middleby Marshall X70G, X55G, X55GWB gas oven owner's operating and installation manual (78866 Rev F)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. PS638 and PS640 gas touch screen ovens print REAR BELT JAMMED; X70G, X55G and X55GWB print BACK BELT STALLED.

Middleby Marshall REAR BELT JAMMED pizza oven repair,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas

Tampa BayFL · 31 areas

OrlandoFL · 30 areas

Miami / South FloridaFL · 47 areas

New York MetroNY · 75 areas

HoustonTX · 36 areas

ChicagoIL · 50 areas

Los AngelesCA · 95 areas

San DiegoCA · 31 areas

San Francisco Bay AreaCA · 74 areas

A family sliding a pizza into a wood-fired pizza oven on a sunny patio.
For the heart of your home.

Questions
about REAR BELT JAMMED.

Can I clear REAR BELT JAMMED myself?
Switch the oven off and wait for it to cool; the rear belt sits deeper in the opening and is harder to reach safely. If it comes back, it needs a visit.
Can I keep using the front belt while the rear shows jammed?
The front belt has its own drive, so it can keep running. Clear the rear lane at the next safe moment with the oven off and cool.
Why does the rear belt on my Middleby Marshall jam more often?
It often carries the heavier or longer bake, and items slide toward it from the loading shelf. Overload is the cause the manual lists first.
What is BACK BELT STALLED on a Middleby Marshall X-Series?
It is the X-Series wording for the rear belt being stopped by the control after an overload or jam.

Back to your everyday

Still showing REAR BELT JAMMED?

A booking with a code goes further when it has the code copied as shown, the model and serial from the rating plate, and a note on whether the oven still lights, heats or moves its belt. With those three, the office can match the likely part to your oven the same day.

Schedule a repair Call (844) 747-3662
(844) 747-3662 Schedule a repair