SM-28
Jade Range LLC
– A Middleby Company
Titan
TM
Series Heavy Duty Range
Model Series JTRH, JMRH & JTRHE
REVIEW COPY
7
NOTE:
The high-voltage wire from the module to the
pilot igniter must not have any nicks, cuts or splices.
NOTE:
The high-voltage connection at the spark
module must be clean and tight and the grounding
grommet on the module must have a good connection
to the electrical ground (chassis) of the range or the
module will not provide good spark control.
2. Check the pilot igniter on the oven pilot
assembly for damage.
3. Check that the assembly is securely fastened to
the oven to ensure a good ground connection.
4. With the oven door closed, turn the power
switch to the ON position.
5. Listen for a clicking sound.
If there is a clicking sound, go to step 7.
If there is no clicking sound, go to the next step.
6. Check for proper voltage supply to the module.
a. Remove the connectors with the black
and white wires from the module terminals.
b. Place the power switch to the ON position.
c. With the oven door closed, use a voltmeter
on connectors.
If 120 VAC is not present, check for 120 VAC at
every connection in the circuit back to the junction
box attached to the rear of the range. Refer to the
schematic in this manual. Repair and retest.
If proper voltage is present, make sure the module
is properly grounded. (Metal ring on screw hole is
the ground connection for the module.) If the ground
connection is good, place the power switch in the
OFF position, replace the module, and retest.
7. Inspect the pilot igniter according to INSPECT
AND ADJUST THE PILOT IGNITER.
If no problem was found, go to the next step.
If there is no or intermittent continuity, repair the
connector or replace the wire and retest.
If everything has tested OK to this point, there
may be an unseen fault with the igniter. Disconnect
the ignition wire at the module and connect a
known good igniter to the module, ground the
igniter, and retest. If the new igniter works properly,
replace the existing oven pilot assembly.
8. Remove the high-voltage wire from the module
and the pilot igniter. Check for continuity
between the wire connectors.
PILOT IGNITER INSPECTION
AND ADJUSTMENT
Figure 34: Inspect and Adjust Pilot Igniter
WARNING
PERFORM THE ELECTRICAL LOCKOUT/
TAGOUT PROCEDURE.
1. Shut off all electrical controls and perform the
Electrical LOCKOUT/TAGOUT procedure.
WARNING
PERFORM THE GAS LOCKOUT/TAGOUT
PROCEDURE.
2. Shut off all gas controls and perform the Gas
LOCKOUT/TAGOUT procedure.
3. Remove the pilot/igniter assembly according
to OVEN PILOT ASSEMBLY in the REMOVAL
AND REPLACEMENT OF PARTS section.
4. Measure the gap between the sparker and the
edge of the pilot nozzle. The gap should be
approximately 1/8" (3 mm).
5. Inspect the ceramic insulator for cracks or
evidence of exposure to extreme heat, which
can permit current leakage to ground. If either
of these conditions exists, replace the pilot
igniter assembly.
6. Check the high-voltage ignition wire.
•
Check the wire for damaged insulation.
•
Make sure the wire is securely fastened
to the sparker and to the connector at
the module.
7. Install the adjusted or new pilot/igniter assembly.
