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Troubleshooting Guide
5-12
Step 1. Testing Supply Voltage for DSI Board
Using a volt/ohm meter set to read AC voltage, place one meter probe to pin 4 and one meter probe to pin 10 on the J1 connector of the DSI board.
Do you have 120 VAC
from Pin 4 to Pin 10?
Yes
Go to step 2
No
Do you have 110 to120 VAC at the Power
Input connector on L1 and N?
Yes
No
Disconnect power to unit.
Then, check connections from
DSI Board to Power Input, for
loose connections. If loose
connection, reseat connectors.
If connections okay, replace J1
cable harness.
Check for 110 to 120VAC at unit
terminal block from L2 to N.
120 VAC present?
Yes
Disconnect power to unit.
Check wiring between unit
terminal block and Power
Input connector for loose
or defective wire(s) and
repair / replace.
No
Checked for defective
or loose wiring to unit
terminal block from
junction block, may
have to call an electrician.
Step 2. Testing Griddle Thermostat
Using a volt/ohm meter set to read AC voltage, place one meter probe to pin 6 and one meter probe to pin 4 on the J1 connector of the DSI board.
Do you have 110 to120 VAC
from Pin 6 to Pin 4 with
thermostat turned on?
Yes
Go to step 3
Disconnect power to unit.
Unplug J1 connector at DSI board.
Check for continuity across
contacts on griddle thermostat
Pins 6 & 10 with thermostat on.
Replace thermostat if open.
Then griddle thermostat
is working okay.
Step 3. Testing DC Voltage for Solenoid Output
Using a volt/ohm meter set to read DC voltage, place one meter probe to pin 1 and one meter probe to pin 2 on the J1 connector of the DSI board.
Do you have 10 VDC
from Pin 1 to Pin 2?
No
Go to step 4
Yes
Disconnect power to unit.
Unplug J1 connector at DSI board.
Ohm wires at pin 1 and pin 2. If no
ohm reading, check for loose or
defective wire(s), repair/replace if
defective. If wire(s) okay replace
defective solenoid.
Step 4. Testing Continuity of J2/GND Wire for DSI Board
Disconnect power to unit. Disconnect wire at J2/GND connection.
Do you have continuity from
J2/GND wire connector to
unit chassis?
Yes
Go to step 5
Repair/replace defective J2/GND
wire.
Step 5. Testing Continuity of Griddle/FT Electrode for DSI Board
Disconnect power to unit. Disconnect wire at J4 connection.
Do you have continuity
from J4 wire connector
to tip of griddle/FT electrode?
No
No
Replace defective DSI Board
Yes
DSI BOARD TROUBLESHOOTING FLOW CHART
DSI BOARD TROUBLESHOOTING FLOW CHART
Summary of Contents for DF304
Page 2: ......
Page 12: ...D Du ua al l F Fu ue el l R Ra an ng ge e General Information 1 10 ...
Page 62: ...4 22 Component Access Removal D Du ua al l F Fu ue el l R Ra an ng ge e ...
Page 77: ...Technical Data D Du ua al l F Fu ue el l R Ra an ng ge e 6 1 SECTION 6 TECHNICAL DATA ...
Page 81: ...Wiring Diagrams D Du ua al l F Fu ue el l R Ra an ng ge es s 7 1 WIRING DIAGRAMS SECTIO N 7 ...