Henny Penny PFG-691 Technical Manual page 14

1-3. TROUBLESHOOTING (Continued)
Problem
Shortening will
not heat ("E-20")
Sept. 2004
Cause
HEATING OF SHORTENING SECTION
Blown fuse or tripped
•
circuit breaker at supply
box or control panel
Blown fuse in PC board
•
•
Faulty Power/Pump switch
•
Faulty cord and plug;
check power at receptacle
•
Faulty drain switch
Faulty PC Board
•
•
Faulty high limit control
switch
•
Drain valve open
•
Possible faulty gas control
valve
•
Possible faulty temperature probe
("E-6")
Bad ignitor
•
• Low air pressure into
burner chamber
• Faulty ignitor module
• Spark ignitor or flame sensor
out of adjustment
• Gas valve knob turned to the
OFF position
1-8
Model 691
Correction
•
Reset breaker or replace fuse
•
Replace glass fuse in board
•
Check Power/Pump switch
•
Check cord and plug and
power at wall receptacle
•
Check drain switch
•
Remove and replace control
panel
•
Check high limit control
switch; replace if necessary
•
Close drain valve
•
With power removed from
fryer, check across electrical
leads of gas control valve with
multimeter, and with gas
valve knob to ON position
•
Replace temperature probe
•
Replace ignitor
• Clean or replace blower
• Replace air pressure switch
• Replace module
• The spark ignitor needs to be
1/8 in. (3.18 mm) from the
pilot hood, and the flame
sensor, 1/4 in. (6.35 mm)
• Make sure the gas valve
knob is turned to the ON
position