Part #GCGTRAINING06 (03/03/08)
Page 11
7 . The bayonet connector is spring loaded . Turn the
connector so that it makes good contact with its seat on
the plate, and adjust the spring so that at least 1” (5mm)
of spring is available to push home . This is, it is loaded 1”
(5mm) from the bayonet adapter .
8 . Once this adjustment is made, remove the thermocouple
from its cavity, pry the old heat sink material from the
cavity and apply fresh heat sink compound (Garland
Commercial Ranges part #770) .
9 . Re-assemble the unit .
Incandescent Lamps
These lamps, similar in construction if not in shape to
ordinary incandescent light bulbs, sometimes fail because
of metallurgical breakdown of the light filament material .
The green status light (PL1) should illuminate when the main
switch SW1 is closed .
• If PL1 doesn’t illuminate when SW1 is closed, replace it .
• Failure of the amber lights (PL3, PL, etc .) monitoring the
zones cycle with the thermostat is not easy to detect .
When on, an amber zone light is working . If it does not
appear to light as part of the ‘burner on’ cycle, check . If
the thermostat cycles the burner to be on, the PL amber
light should illuminate .
Pilot Ignition Control (Control Module)
The Johnson G770 pilot ignition unit will lock out if the pilot
flame is not sensed before the end of the ignition trial period
and has to be reset .
• To reset the ignition control, turn off the thermostat for a
minimum of 30 seconds .
Bayonet
adapter
Adjust to
about 4.5"
before
installing
About 1"
before compression
Griddle plate
Probe heat
shield assembly
Figure 3 – Replacing a thermocouple
SERVICING continued
Summary of Contents for CG-24
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