Henny Penny 500 Service Manual page 79

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FILTER SYSTEM SECTION (continued)
Motor hums but
will not pump
Clogged lines or pump. 0 Remove and clean pump and
lines per paragraph 5-22.
Replace pump seal, rotor and
rollers per paragraph 5-22.
Shortening will not
heat (Electric
Model)
Heating of
shortening too slow
(Electric Model)
HEATING OF SHORTENING SECTION
@ Blown fuse or tripped circuit
breaker at supply box or
control panel.
@ Blown fuse at control panel.
e Faulty main switch.
@ Check cord and plug. Check
power at receptacle.
Faulty contactor.
High limit control switch
open.
Faulty thermostat.
Faulty high limit control
switch.
Low or improper voltage.
Weak or burnt out element(s).
Points in contactor bad.
Wire(s) loose.
Burnt or charred wire
connection.
0 Reset breaker or replace fuse.
0 Check fuse per paragraph 5-19.
0 Check main switch, per
paragraph 5-19.
0 Check cord and plug and power
at wall receptacle per
paragraph 5-19.
@ Check contactor, per paragraph
5-15.
0 Press red high limit reset
button per paragraph 5-12.
9 Check thermostat per
paragraph 5-10.
Check high limit control switch
per paragraph 5-12.
0 Use a meter and check the
receptacle against data plate.
Check heating element(s) per
paragraph 5-14.
Check contactor per paragraph
5i15.
Tighten.
Replace wire and clean
'connectors.