TurboChef 3240 - Page 57

TROUBLESHOOTING
35
Is the 100% and
minimum flame
adjusted correctly
(page 3).
YES
NO
Adjust the 100% and
minimum flame
(page 3).
Is at least 1.5 uA
maintained by the
burner (page 28)?
NO
Inspect and if needed,
replace the burner
assembly (page A-14).
Inspect and if needed,
replace the flame sense
rod (page A-14).
Does the burner trans-
former have 24 VAC
output (page 26)?
NO
Does the burner trans-
former have line voltage
applied to input?
YES
Replace the burner
transformer
(page A-8).
YES
Are the contacts
on the high limit
thermostat closed
(page A-14)?
NO
Inspect or replace the
high limit thermostat
(page A-14).
Is the air pressure
switch closed?
Is the combustion
blower running?
Check the wiring.
(page 45)
YES
YES
YES
Is the air tube
tightly connected?
NO
Is voltage
applied to the
combustion
blower?
NO
Check the wiring
(page 45).
YES
Replace the
combustion
blower
(page A-14).
Replace the
air tube.
Replace the
air pressure
switch
(page A-14).
YES
NO
Is the K3 gas
relay closing
(page 22)?
NO
YES
Check the
Wiring
(page 45).
Is 24 VDC
applied to the
K3 gas relay?
YES
Replace the
K3 gas relay
(page A-8).
NO
Replace the I/O
control board
(page A-8).
NO
NO
YES