Frymaster 47 Series Service & Parts Manual page 10

The following table identifies the meaning associated with each of the LEDs arranged across the top
of the interface board. NOTE: In full vat units, ignore the left-side LEDs.
CMP
PWR
47 SERIES GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES
P/N 806-5857
LED DIAGNOSTIC LIGHTS
AL Indicates ignition module lockout
MV Indicates 24 VAC to main gas valve
PV Indicates 24 VAC to pilot valve
Indicates 12 VAC from transformer
24V Indicates 24 VAC from transformer
Indicates 24 VAC to ignition module
INTERFACE BOARD
J3
12VAC TO CPTR J4 PIN 1
1
GROUND
GROUND
2
12 VAC RETURN
J4 PIN 3
3
COMPUTER RT HT RELAY (K3)
4
12VDC TO
COMPUTER
RELAYS
5
COMPUTER LT HT RELAY (K1)
6
COMPUTER
J4 PIN 9
7
NOT USED NOT USED
8
COMPUTER
J2 PIN 6
9
CPTR-RT ALARM J5 PIN 1
10
COMPUTER
SOUND DEVICE
11
CPTR-LT ALARM
J1 PIN 1
12
COMPUTER J4 PIN 10
13
COMPUTER J4 PIN 11 & J2 PIN 2
14
COMPUTER J2 PIN 1
15
J2
TEMP PROBE J3 PIN 15
1
TEMP PROBE J3 PIN 14
2
J1 PIN 2
J2 PIN 4 via HLS, DSS,
3
and PILOT VALVE
K1
PILOT VALVE
4
K1
MAIN GAS VALVE
5
BASKET LIFT J3 PIN 9
6
NOT USED
NOT USED
7
NOT USED
NOT USED
8
NOT USED NOT USED
9
NOT USED NOT USED
10
GROUND
GROUND
11
NOT USED
NOT USED
12
J1
MOD ALARM J3 PIN 12
1
MOD VALVE TERM J2 PIN 3
2
MOD 25V GROUND
GROUND
3
MOD 25V TERM
J4 PIN 4 via K2
4
LEFT VAT
CURRENT FLOW THROUGH INTERFACE
BOARD
INTERFACE BOARD
J4
J3 PIN 1 12VAC XFMR PIN 11
1
GROUND
2
J3 PIN 3 12VAC XFMR PIN 12
3
J5 PIN 4 via K2
4
NOT USED
5
NOT USED
6
K3
7
K3
8
J3 PIN 7
9
J3 PIN 13
10
J3 PIN 14
11
J4 PIN 7 via HLS, DSS,
J5 PIN 2
12
and PILOT VALVE
J5
J3 PIN 10
1
J4 PIN 12 MOD VALVE TERM
2
MOD 25V GROUND
GROUND
3
MOD 25V TERM
J4 PIN 4 via K2
4
FULL OR RIGHT VAT
806-5857
1-5
GROUND
24V XFMR PIN 8
NOT USED
NOT USED
PILOT VALVE
MAIN GAS VALVE
BASKET LIFT
TEMP PROBE
TEMP PROBE
MOD ALARM