F3D3
Series
Service Manual Troubleshooting Guide / Section 1.3
Questions? Call Franke Technical Support Group For Your Area. Copyright
2012 Franke, Inc. All rights reserved.
Use the following
Sequence of Operation Questions
to help diagnose common service problems.
The Question!
Answer!
What To Check or Do
1. Can the unit be
turned ON?
NO!
Check Breaker. OK? Yes = Continue
No = Call electrician
Power Outlet OK? Yes = Continue
No = Call electrician
Power Cord OK? Yes = Continue
No = Replace Power Cord
per
Section 2.23
Check power at Power Switch. OK? Yes = Continue to Question 2
No = Replace Power-ON Switch per
Section 2.16
Yes!
Go to Question 2!
2. Do the Lane
controls light
up?
NO!
No power to one lane only? “Push & Hold” touch pad for 4 seconds
(required) to turn on each lane. Is word
Ready
in displays? Yes =
Test & return unit to service; No = Continue
Check 24-Volt AC Power Supply; OK? Yes = Continue
No =
Replace Power Supply for that lane
per
Section 2.20
Ribbon Cable OK? Yes = Continue
No = Replace Ribbon Cable
–
Contact Franke Technical Support
for P/N & Instructions
Operator’s Touchpad Panel OK? Yes = Return unit to service No
= Replace Operator Touchpad Panel per
Section 2.15
PC Control Board OK? Yes = Continue
No = Replace Control
Board
per
Section 2.20
Yes!
Go to Question 3!
3. Does the
compartment
temperature appear
in left lane display?
NO!
For two lane (F3D3 or F3D3P) Models, See
Section 3.6
for Backup
Temperature Display jumper re-cabling instructions
For single lane (F3D3S or F3D3SP) Models, Check Temperature
Controller Sensor Cable; OK? Yes = Continue No = Replace
Sensor Cable per
Section 2.17
Yes!
Go to Question 4!
4. Does the
Refrigeration
System start in two
minutes or less?
Warning:
For F3D3P &
F3D3SP Propane
Models, attempt NO
Condenser System
Service! Call Franke.
NO!
Is Compressor plugged into terminal box? Yes = Continue
No =
Plug it in! Verify Compressor starts.
Check Compressor Relay. OK? Yes = Continue
No = Replace
Relay per
Section 4.3
Check Compressor Capacitor. OK? Yes = Continue
No =
Replace Capacitor per
Section 4.3
Check refrigeration system for leak per
Sections: 4.4, 4.4A &
4.4B
. Yes = Repair leak per
Section 4.5
. No = Continue
Check Compressor. OK? Yes = Continue
No = Replace
Condenser Unit per
Section 4.7
Yes!
Go to Question 5!
5. Does the
Machine try to
dispense a load of
fries?
Yes!
Check for French fries in hopper? Yes = Continue
No = Add
fries to Hopper and attempt to dispense again.
Check for fries bridge inside Hopper? Yes = Clear/disrupt fries
bridge and attempt to dispense again. No = Continue
Is Drum Rotor binding inside Hopper? No = Continue
Yes =
Adjust Drum Rotor Motor per
Section 3.4
or Adjust Fry Hopper
Alignment per
Section 3.5
Check Drum Rotor Motor. Does it rotate freely? Yes = Continue
No = Replace Drum Rotor Motor per
Section 2.5
