Southbend X536D Manuel D’Utilisation

S

ERVICE

 

500

 

S

ERIES 

R

ESTAURANT 

R

ANGES

 

P

AGE 

22

 OF 

44 O

WNER

’

S 

M

ANUAL 

1188716

 

(02/07) 

T

ROUBLESHOOTING 

C

ONVECTION

-O

VEN 

B

LOWER

 

 

Before attempting to service or replace any electrical component, make sure power source has been 
disconnected. 

 

When changing motor or servicing range, always verify that blower wheel rotation is clockwise when looking into 
the oven cavity. 

 

The motor is serviceable from the front of the range through the oven cavity. Remove the back lining. Disconnect the 
motor mount plate by removing the eight hex nuts that secure it to the oven interior back. Pull the mount plate, with 
motor attached, into the oven. 

Motor lubrication information can be found on permanent label located on motor. 

If the blower does not run at all, consult the flowchart that begins on the next page.  If the blower runs intermittently, 
consult the flowchart on this page. 

The appropriate wiring diagram for the oven can be found on the rear of the oven (as well as at the end of this section 
of this manual). 

 

 

 

 

Figure 10

    

Convection-Oven Blower Runs Intermittently 

 

 

Convection-oven blower runs intermittently. 

Check that there are no air-flow obstructions around the range. 

Does the problem 

occur only when the oven 

is hot? 

No 

Yes

Check that the blower motor air vents are not obstructed. 

Check that the blower motor is not pressing against the wall 

behind the range. 

Check for excessive grease and dust buildup on the motor. 

Check for sources of excessive heat behind the range. 

Check for hot-air leaks around the motor pocket. 

Check all wiring for loose connections or breaks. 

With the blower turned ON, turn the oven thermostat to OFF and 

allow the oven to cool.  If the blower motor runs continuously 

when the oven is cool, turn the oven thermostat to the highest 

setting. If the blower motor shuts off when the oven becomes hot, 

and if there are no sources of excessive heat around the blower 

motor, replace the blower motor. 

Remove the cover from the junction box on the back of the range. 

Disconnect the black wire and place an ammeter in the circuit. 

amperes! Reconnect the power to the range and turn on the 

blower switch while watching the ammeter. The reading should 

surge and then return to the rated current of the motor when 

running at high speed. If the measured current exceeds the motor 

rating, replace the blower motor.