Henny Penny LVG-202 Service Manual page 13

1-4. ERROR CODES (CONTINUED)
Pressure Switch failure/ hose loose
Draft Fan failure/ low voltage/ Flue
"E-20-B"
or hood obstruction
"NO
DRAFT"
"CHECK
FAN"
Failure to ignite/ no flame sense
•
• Plugged atmospheric
equalization hole in regulator cap
resulting in pilot flame slowly
fading
"E-20-D"
Slow heat recovery
"E-21"
"E-22" Burner not igniting
"NO
HEAT"
Programming failure
"E-41" ,
"E-46"
Analog converter chip or 12 volt
"E-47"
supply failure
Input system error
"E-48"
Temperature input error
"E-54-C"
July 2013
Press power button to vat off and back on again,
if E-20-B persists, have pressure switch checked;
should be open circuit if no air pressure; make sure
hose is connected to fan and pressure switch
Have draft fan checked; low voltage going to fan
Check the fryer flue and hood system for
obstructions
• Press power button to vat off and back on
again, if E-20-D persists, check gas line
connections; check gas shutoff valve; check
ignition module; check gas valve; check flame
sensor gap; check gas valve, and check ignition
module wiring
• Clear obstruction from hole
Have a certified service technician check the fryer
for correct gas supply and pressure to the unit;
have the gas valves checked; have unit checked
for loose or burnt wires
Have gas valve and heat circuit checked
Turn switch to OFF, then back to ON; if display
shows any of these error codes, re-initialize the
controls; if error code persists, check control board
and replace as needed
Turn switch to OFF, then back to ON; if "E-47"
persists, replace the PC board
Turn switch to OFF, then back to ON; have control
PC board replaced if "E-48" persists
Turn switch to OFF, then back to ON; have control
PC board replaced if "E-54C" persists
1-8
Model LVG-202, 203, 204