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Verify Ignition Module Safety Lockout Functions (Gas Only)
1. Verify ignition module safety lockout functions.
A. Turn off main gas supply to the oven.
B. Open control panel door to gain access to burner
compartment area.
C. Turn the oven on.
Fig. 13
D. Set the oven to call for heat and make sure
convection fan is running.
E. Observe LED light through hole in control box
cover (Fig.13). After trying to light the burner
three times, the module should lockout. (See
chart below.)
F. Turn main gas supply to the oven back on.
G. Set the oven to call for heat, making sure
convection fan is running and the burner has
established a flame.
H. Turn off main gas supply to the oven.
I. Observe LED light through hole in control box
cover (Fig.13). The ignition module should go
into lockout. (See chart below.)
LED DIAGNOSTIC INDICATOR CODES
LED LED
LED off
LED illuminated
'1' Flash
'2' Flash
'3' Flash
No Fault
Module Fault
Air Flow Fault
Flame Fault No Call for Heat
Ignition Module Lockout
J. If the results have been obtained, proceed to
step 2.
K. If the results have not been obtained, contact your
local Hobart Systems Service office.
2. Verify hood exhaust air pressure switch (Fig. 14)
operation.
A. Set oven control to call for heat and make sure
convection fan is running.
B. Disconnect tubing from exhaust vent collar. Burner
flame should go out.
C. Reconnect tubing. Burner should establish a flame.
If not, contact your local Hobart Bakery Systems
service office.
Fig. 14