Blodgett KLS-E Series Installation & Operation Manual page 15

9.2 EXTREMELY SLOW COOKING TIME
If the cooking time is abnormally slow, then the difficulty may be due to air being present in the
kettle jacket. To remove air, follow AIR VENTING INSTRUCTIONS.
If the kettle will not reach and maintain Pressure Gauge zone in the green area on the gauge when
cold, a slow leak may have developed in the jacket. Check all fitting connections to jacket
including the heating element gasket. Tighten or replace if necessary
Slow cooking time may also be due to a burnt out heating element. Test elements and if defective,
replace complete element assembly.
9.3 KETTLE WILL NOT OPERATE WHEN TURNED ON
Check that power supply is available to kettle.
Kettle will not operate if water level is inadequate in jacket. Follow 9.1 LOW WATER LEVEL
instructions.
Also check for defective power switch or loose wire connections.
Initially, when Thermostat Knob is dialed and TEMPERATURE indicator light does not come on,
then it may be assumed that malfunction is due to either a defective Thermostat or loose wiring
connection(s). If TEMPERATURE indicator light comes on when Thermostat Knob is dialed fully
(i.e. setting of „10'), then eventually the kettle should read its maximum temperature (290ºF) in the
jacket and a corresponding pressure reading of approximately 40 p.s.i. should be evident on the
Pressure Gauge (on kettles rated at 50 p.s.i.).
Finally, when the kettle is turned ON and Thermostat Knob dialed, check that the Contactors are
being energized and power is being made available to the heating elements. Replace defective
Contactors.
9.4 DRAW-OFF VALVE LEAKS
If leak occurs through the valve stem, replace the "O" ring. If the leak can be attributed to faulty
sealing occurring between the stem disc and valve seat, then this may be due to dried on food
residue. Clean the dried on food residue with an extremely fine emery cloth. If the rubber
vulcanized stem piece has been damaged it must be replaced.
NOTE
Draw-off valve has a vulcanized rubber coated stem for better sealing. Do not
over tighten. This may cause the rubber to pull away from stem and
permanently damage it. This is not covered under warranty.
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