INSTALLATION AND OPERATION MANUAL, GAS KETTLE, MODEL GL-30
10156R2
26
2012-11-28
6.0 SERVICE
(Continued)
RE-ESTABLISHING VACUUM
:
With the kettle completely cold a vacuum of 25 to 30 inches mercury column (M.C.) should be
maintained as indicated in the green zone on the pressure gauge on the front control panel. If
at any time the vacuum is not in the green zone, vacuum should be re-established.
With the kettle empty, turn the thermostat knob to the highest temperature. When the
temperature pilot light goes off, open air vent nut one (1) full turn for 20 seconds and then close
and tighten the nut. This should remove the air and any loss in performance should return.
Should the kettle fail to maintain a vacuum after repeated attempts to establish it, further checks
should be made to see if the pressure relief valve is leaking or if there are any leaks in the pressure
relief valve piping, copper lines going to the pressure switch, pressure gauge or thermostat fitting.
CONTROL CIRCUIT FUSES
The control circuit is protected by a 3 amp. fuse which is located inside control panel, top right
side above transformer.
Should the unit fail to turn on, check this fuse by removing it and either replacing it or testing it
with a continuity tester. If the fuse is good, check the main power circuit breaker, which should
be external to the kettle.
