(Item 13.20 continued from previous page.)
B. Possible short in wiring from
B. Clean and dry both ends of cable,
transducer to PC board.
and check for loose connections.
C. Poor contact within connector.
C. Reposition or replace transducer.
D. Low 15VDC from Lower Board. D. Check for 15VDC at P17 pin 5.
Replace lower board, if necessary.
E. Upper board failure.
E. Replace main control (Upper)
board.
REFRIGERATION
13.21
Compressor won't
A. Incorrect start procedure.
A. Press “Def”, then “Run” to start.
start.
B. In 2 min., compressor delay.
B. “Run Beater” or “Def Beater”
indicates delay mode
C. Out of CO
2
, Syrup or Water.
C. Check pressure readouts for
70-72 psi, adjust regulators,
if necessary.
D. Start capacitor or relay
D. Test start capacitor and start relay.
problem.
Replace, if necessary.
E. Contactor failure.
E. 1.
In Manual On/Off, activate
“Compressor” .
DO NOT RUN
COMPRESSOR FOR MORE
THAN 10 SECONDS!
If
contactor energizes, quickly
check voltage across contactor
T1 and T2 for 220 volt. If no
voltage reading, replace
contactor. "
2.
In Manual On/Off, activate
“Compressor”.
DO NOT RUN
COMPRESSOR FOR MORE
THAN 10 SECONDS!
If
contactor does not energize,
quickly check voltage across
contactor coil terminals for
24VAC. If voltage is present,
replace contactor.
F.
Relay board not sending
F.
Test relay board for 24VAC output
power to contactor coil.
and 5VDC input on contactor relay.
Replace relay board, if necessary.
G. Lower Board problem.
G. Test lower board for +5, +15, and
–15 outputs at J-5 plug (see
Figure 14.3).
H. 192 VA Transformer problem.
H. Test transformer for 220VAC input
and 24VAC and 12VAC output
(see Figure 14.3).
I.
Compressor failure, or
I.
Wait for compressor to cool.
overheated.
Check amperage draw (normal
running 13 amps) on compressor.
Check compressor wiring and
terminals. Replace compressor,
if necessary.
13.22
Compressor runs long
A. Return temperature not
A. Verify that Return Temperature
time but won’t freeze
dropping.
drops below 20°F. Return
down.
Temperature should achieve 20°F
within 7 to 25 minutes of startup
(no drinks dispensed).
B. Airflow through condenser
B. Clear condenser of blockage.
is blocked. Dirty filter.
Clean air filter.
C. Hot gas valve is activated
C. Select "Defrost Sol" in
in Manual On/Off
“Manual ON/OFF”; test solenoid,
then turn off.
(Item 13.22 continued on next page.)
TROUBLE
CAUSE
REMEDY
Contact FBD Warranty Dept. before tapping system if unit is under warranty!
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