Middleby Marshall PS314SBI User Manual download pdf (Page 16)

ENGLISH

V. QUICK REFERENCE: TROUBLESHOOTING

SYMPTOM PROBLEM SOLUTION

The oven temperature ex-

ceeded 650°F (343°C), and

the burner was automati-

cally shut down.

 Follow the procedures under Daily Shutdown Procedures in

this section to shut down the oven. Contact your Middleby

Marshall Authorized Service Agent to determine and correct the

cause of the condition to prevent damage to the oven.

IF THESE STEPS FAIL TO RESOLVE THE PROBLEM, CONTACT YOUR LOCAL MIDDLEBY MARSHALL

AUTHORIZED SERVICE AGENT. A SERVICE AGENCY DIRECTORY IS SUPPLIED WITH YOUR OVEN.

SECTION 3 - OPERATION

light is lit, food product is

undercooked

Oven will not

turn on at all

Oven shuts down shortly

after it is turned on

appears in display,

oven is not heating

Oven will not heat

Oven is operating, but

little or no air is blowing

from air fingers

Conveyor moves with a

jerky motion, or will not

move at all

Food products are

overcooked or

undercooked.

Electrical power may not be

reaching the oven, or the

controls may be set incor-

rectly.

The gas burner did not light

within 90 seconds of turn-

ing the "HEAT" (or

)

Switch to the ON (or "I")

position. This automati-

cally engages a safety lock-

out mode.

The oven did not reach

200°F (93°C) within 15 min-

utes of startup, and the oven

has stopped heating.

Controls may be set incor-

rectly.

Air fingers may have been

reassembled incorrectly

after cleaning.

Conveyor may be jammed

on an object in the oven, or

conveyor belt or drive chain

tension may be incorrect.

Controls may be set incor-

rectly.

 Check that the circuit breaker/fused disconnect is turned on.

 Check that the "BLOWER"

(or ) Switch is in the ON (or "I")

position. The burner cannot engage until the blowers are in

operation.

 Turn the "HEAT" (or

), "BLOWER" (or ), and "CONVEYOR"

(or )switches to the "OFF" (or "O") position.

 Wait for AT LEAST FIVE MINUTES before restarting the oven.

 Repeat the Daily Startup procedure.

 Turn the "HEAT" (or

), "BLOWER" (or ), and "CONVEYOR"

(or )switches to the "OFF" (or "O") position.

 Wait for AT LEAST FIVE MINUTES before restarting the oven.

 Repeat the Daily Startup procedure.

 Check that the Set Point is correctly set.

 Check that both the "BLOWER" ( ) and "HEAT" ( ) Switches

are in the ON ("I") position.

 If the oven still will not heat,turn the "HEAT" ( ), "BLOWER"

( ), and "CONVEYOR" ( )switches to the "OFF" ("O")

position.

 Wait for AT LEAST FIVE MINUTES before restarting the oven.

 Repeat the Daily Startup procedure. Check that the Set Point

is above 200°F (93°C).

 Turn the oven off, and allow it to cool. Disconnect electrical

power to the oven.

 Refer to Section 4,

Maintenance, for instructions on reassem-

bling the air fingers.

 Turn the oven off, and allow it to cool. Disconnect electrical

power to the oven.

 Check if the conveyor is blocked by an object inside the oven.

 Refer to Section 4,

Maintenance, for instructions on checking

the conveyor and drive chain tension.

 Check that the set temperature and bake time settings are

correct.

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Middleby Marshall PS314SBI User Manual Page 16

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