Troubleshooting guide

36
Installation and Service Manual
TROUBLESHOOTING
CONDITION IN V E S TIGAT ION CHECK CORRECTION
No power at unit. Electrical circuit On/off switch
Plugged into power source
Circuit breaker tripped
Power supply inoperative
24 volt connector from power
source to control board
Control board inoperative
Switch to on position/replace
defective switch
Plug in power cord
Determine source of overload
Replace power supply
Check connection/connector
Check/replace control board
Board/bracket lights inoperative Light modules
C ontrol board
Inoperative light modules
Control board programming
Replace modules
Check and program/reprogram
Water only dispensing
(one or more flavors)
Syrup circuit Syrup supply depleted
Syrup pressure too low
BIB connector off
BIB connector plugged
Syrup line restricted
Syrup outlet plugged at valve
Syrup port plugged at
injection shroud
Outlet syrup line off valve
Syrup solenoid inoperative
Control board inoperative
Replentish syrup supply
Adjust syrup pressure to 40
PSI (2.75 BAR)
Reattach BIB connector
Clean BIB connector
Check line from BIB pump to
MFT-16
Clean syrup outlet
Clean port
Replace syrup line
Check power to solenoid
Check/replace solenoid
Check connection to control
board
Check/replace control board
Syrup only dispensing Water circuit No water pressure
Water pressure too low
Water line restricted
Wa ter lines off wate r pum p
Wa ter lines off heat
exchanger
Wa ter lines off tee
connection in unit
Water valve solenoid
inoperative
Check source water supply
Have location check plumbing
and/or install water booster unit
C he ck wa ter line fro m wa ter
source
Re atta ch wate r lines
Re atta ch wate r lines
Re atta ch wate r lines
Check power to solenoid
Check/replace solenoid
Check connection to control board
Check/replace control board
Noisy syrup/water valve solenoid Syrup/water valves Defective solenoid Replace solenoid
Finished drink taste too
sweet/not sweet enough
Finished drink brix
incorrect
Check brix ratio as specified
by syrup manufacturer
Brix finished drink
Syrup/water leaks Syrup and water circuits C heck water/syrup
connections and
components
Tighten connections
Replace leaking components