Troubleshooting; Troubleshooting Guide - Southbend TruVection TVGS-12SC Manuel D'utilisation

T V G C
RU ECTION AS ONVECTION
T
ROUBLESHOOTING
ADJUSTMENTS AND SERVICE WORK MAY BE PERFORMED ONLY BY A QUALIFIED
TECHNICIAN WHO IS EXPERIENCED IN, AND KNOWLEDGEABLE WITH, THE OPERATION OF
COMMERCIAL COOKING EQUIPMENT. HOWEVER, TO ASSURE YOUR CONFIDENCE,
CONTACT YOUR AUTHORIZED SERVICE AGENCY FOR RELIABLE SERVICE, DEPENDABLE
ADVICE OR OTHER ASSISTANCE, AND FOR GENUINE FACTORY PARTS.
Warranty will be void and the manufacturer is relieved of all liability if service work is performed by
other than a qualified technician, or if other than genuine Southbend replacement parts are installed.
In case of problems in operation at initial installation, check type of gas and manifold pressure and
compare with information listed on the serial plate. The serial plate is located inside the lower front panel.

TROUBLESHOOTING GUIDE

The left column of the following table lists symptoms that indicate a problem, while the center and right
columns list the possible causes and appropriate corrective action. Note that the recommendations of this
table assume that the wiring connections are good. When checking a component, always check the wiring
attached to the component as well.
Symptom Possible Cause
Oven will not hold Temperature probe not working.
correct temperature.
Temperature control not calling for heat.
Undersized gas supply line
Low gas pressure.
Inadequate or improper ventilation.
Out of calibration.
Ignitor glows red but No power to gas valve.
burners do not come on
Faulty main gas solenoid.
when thermostat calls
for heat (cooking light is
Faulty ignition module.
on).
Manual shutoff valve closed.
Ignitor not in front of rear end of burner.
Table continues on next page.
O
WNER
O
VENS
!
WARNING
NOTICE
' M 1194658
S ANUAL
T
ROUBLESHOOTING
Check or Replace
Resistance across temperature probe leads at room temperature (70°F)
should be approximately 1096 ohms.
When heat is required, there should be continuity between terminals 6
and 7 on temperature control.
Oven requires 1" ID gas line.
Oven requires 6" manifold water column pressure for natural gas, 10" for
propane.
Check ventilation hood. Verify draw and make up air adjustment.
Calibrate according to procedure described on page 30.
Check for 120V from ignition box to gas valve.
Replace gas valve.
Replace ignition module.
Open all shut-off valve.
Re-position ignitor to be in front of rear end of burner.
P 31
AGE