Frymaster H55 Series Technical Reference Manual page 112

Diagnosing Module-Related Ignition Issues
Left module with view of fl ashing
LED in inset.
Video Content
HIGH
24VAC
LIMIT
HIGH LIMIT 24VAC
HIGH LIMIT RETURN 24VAC
AIR BYPASS AIR OUT 24VAC
JUMPER IF AIR
AIR IN 24VAC
PROVER SWITCH IS
NOT INSTALLED
HOOD RELAY 12VDC
JUMPER
JUMPER
Touchscreen-Equipped Fryers
Ignition modules are mounted hori-
zontally under the controller box. LED's
on the modules are guides when diag-
nosing ignition problems.
The yellow-circled LED's light when
the module gets power.
The red-circled LED's light as the
module self tests, sparks and locks out.
There's one fl ash with the self test,
two fl ashes as it sparks for ignition and
three fl ashes if fl ame is not sensed and
the module locks out.
Depending on the wiring harness, the
left module will light fi rst followed by
the right or the right module will light
fi rst followed by the left. In all cases,
one module follows the other in the
ignition sequence. To determine which
is locking out, the red LED's have to
be directly observed by removing the
metal covering over the modules.
FULL VAT
TWO SINGLE SPARK
IGNITION MODULES
HEAT
1
RELAY
LATCH
CIRCUIT
3
4
5
6
7
8
9
SMART
J1
10
11
INTERFACE
12
BOARD
14
(SIB)
16
17
18
20
SENSORS
HEAT 24VAC OUT
1
LEFT MODULE GROUND
2
LEFT MODULE ALARM 24VAC
3
LEFT MODULE GAS VALVE 24VAC
4
AIR OUT 24VAC
5
AIR IN 24VAC
6
7
10
J2
11
RIGHT MODULE POWER 24VAC
12
RIGHT MODULE GAS VALVE 24VAC
14
15
17
20
RIGHT MODULE GROUND
13
-12VDC AC BLOWER RELAY
21
+12VDC AC BLOWER RELAY
22
5-9
Right module with view of dim-
mer fl ashing LED in inset.
LEFT
IGNITION
MODULE
SENSE
SPARK
24V
VALVE
GND
ALARM
Optional
AIR PROVER
SWITCH
RIGHT
IGNITION
MODULE
SPARK
OPTIONAL
TIME DELAY
24V
RELAY BOARD
GND
8
SENSE VALVE
7
6
5
MV PV
GAS VALVE
1
C 2
3
NO
NC 4