Henny Penny FlexFusion FPG-221 Service Instructions Manual page 26

Service menu - appliance test
Gas system
26
Status 5
Chamber 1 Top heating system
Chamber 2 Bottom heating system. Only present in 20.x pedestal unit
Flame signal Flame was detected by ionization electrode / ignition module.
Service-instructions
B15 Reed contact switch
Error LED green if error was reported by the ignition module and
error number in the last hour.
Reset LED green if reset signal is sent by the I/O board to the ignition
module and error number in the last hour.