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5-2. ERROR CODES
(Continued)
DISPLAY
"E-20 A"
Vacuum
switch failure
(stuck closed)
"E-20 B"
Draft fan or
vacuum
switch failure
(stuck open)
"E-20 C"
Ignition modules
"E-20 D"
Pilots not lit or
no flame sense
"E-31"
Elements up-
Electric units only
Fan switch jumper
wire missing
"E-54"
PCB component
failure
"E-70A"
Fan switch jumper
missing
"E-70B"
MV jumper missing
"E-92"
24 VAC fuse
on I/O open
908
CAUSE
Press the timer button to try the ignition process again;
if "E-20 A" persists check vacuum switch; refer to
Technical Manual
Press the timer button to try the ignition process again;
if "E-20 B" persists, check vacuum switch or the blower
motor; refer to Technical Manual
Press the timer button to try the ignition process again; if
not responding "E-20 C" persists, check the ignition
module, the spark ignitor, or the I/O board; refer to
Technical Manual
Press the timer button to try the ignition process again; if
"E-20 D" persists, check the ignition module, the I/O
board, or the flame sensor; refer to Technical Manual
Lower elements into frypot
Check for jumper wire on 12-pin connector & add if missing
Turn switch to OFF position, then turn switch back to ON;
if "E-54" persists, have PCB replaced
Have jumper wire checked on 12 pin connect to panel
Have jumper wire checked on connectors to panel
24 VAC fuse on I/O board open; check for shorted
component in 24-volt circuit (i.e.., hi limit, drain switch,
air switch)
Model OFE/OFG/OEA/OGA-341, 342
PANEL BOARD CORRECTION
5-3
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