Co2 Out'' Fault Message Goes On During Operation; H2O Out'' Fault Message Goes On During Operation; Syrup 1'' Or ''Syrup 2'' Fault Message Goes On During Operation; Error 1'' Or ''Error 2'' Fault Message Goes On During Operation - Cornelius R-404A REFRIGERANT Service Manual

Trouble
ALL FAULT MESSAGE NOT
OPERATING (cont'd)
''CO OUT'' FAULT MESSAGE
2
GOES ON DURING
OPERATION.
''H O OUT'' FAULT MESSAGE
2
GOES ON DURING
OPERATION.
''SYRUP 1'' OR ''SYRUP 2''
FAULT MESSAGE GOES ON
DURING OPERATION.
''ERROR 1'' OR ''ERROR 2''
FAULT MESSAGE GOES ON
DURING OPERATION.
FREEZE CYLINDER
AUTOMATIC DEFROST
CYCLE DOES NOT
OPERATE.
UNIT DOES NOT GO OFF
AUTOMATIC DEFROST
CYCLE.
MANUAL DEFROST CYCLE
DOES NOT OPERATE WHEN
''DEFROST'' SWITCH IS
PRESSED.
Probable Cause
D. Master circuit board not
operating.
E. Fault message display module
not operating properly.
A. CO supply turned off or
2
exhausted.
B. Primary CO regulator set too
2
low.
C. Inoperable CO pressure
2
switch.
A. Water supply turned off or
water pressure inadequate.
B. Plugged water filter or water
pump strainer screen.
C. Inoperative water pressure
switch.
A. Soft drink tank empty.
A. Error within Unit has
developed interrupting normal
operation.
A. Loose or broken electrical
wires.
B. Inoperable automatic defrost
timer.
A. Automatic defrost timer stuck
in automatic defrost cycle.
A. Flat cable not properly
connected to control switch
module or master circuit
board.
B. Flat cable connected between
control switch module and
master circuit board pinched
and shorted out or broken wire
in cable.
C. Inoperable ''DEFROST'' switch
on control panel switch
module.
D. Loose or broken wire.
65
Remedy
D. Replace master circuit board.
E. Replace fault message display
module.
A. Open CO cylinder shutoff valve
2
or replenish CO supply as
2
instructed.
B. Adjust primary CO
2
instructed.
C. Replace CO pressure switch.
2
A. Turn on water supply or check
water supply line pressure.
B. Change water filter or clean water
pump strainer screen as
instructed.
C. Replace water pressure switch.
A. Replenish syrup supply as
instructed.
A. Locate and correct error, then
press ''ERROR RESET'' switch to
restore normal operation.
A. Repair electrical wires.
B. Replace master circuit board.
A. Replace master circuit board.
A. Properly connect flat cable to
control switch module or master
circuit board.
B. Check cable for pinched or
broken wire condition and repair
or replace as necessary.
C. Replace control panel switch
module.
D. Repair wire.
regulator as
312028000