Troubleshooting The 24 Vac Circuit: Electronic Ignition - Frymaster 47 Series Service & Parts Manual

1.10.2 Troubleshooting the 24 VAC Circuit: Electronic Ignition Units
VERIFY DRAIN VALVE(S) IS/
ARE FULLY CLOSED
Place ON/OFF switch in
"ON" position (analog
controllers) or press ON/OFF
button to activate computer.
Is spark
generated at the
pilot assembly?
No
Is/are MV LED(s) lit?
No
Is/are PV LED(s) lit?
No
Proceed to next page.
47 SERIES GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES
Malfunctioning gas valve.
Refer to Initial
Yes
Troubleshooting at the
beginning of this section.
Is 24 VAC present on
Yes J4 Pin 8 (and J2 Pin
8, if dual-vat)?
Yes
Malfunctioning gas valve.
Refer to Initial
Troubleshooting at the
beginning of this section.
Probable cause is failed heat
Yes
relay.
1-35
Probable cause is failed
No
interface board.