31
11.3 Refrigeration
TROUBLE
CAUSE
REMEDY
Compressor won't start.
Incorrect start procedure.
Press DEFROST then RUN to
start.
Out of CO
2
, syrup, or water.
Check pressure readouts to be
between 70-72 psig (483-496
kPag), adjust regulators if neces-
sary.
Run capacitor problem.
Test run capacitor. Replace if nec-
essary.
Contactor failure.
1. In Manual ON/OFF, activate
"Compressor."
Do not run
compressor for more than 10
seconds.
If contactor ener-
gizes, quickly check voltage
across contactor T1 and T2 for
115V. 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 coil terminals
for 24VAC. If voltage is pres-
ent, replace contactor.
Board not sending power to con-
tactor coil.
Test harness for 24VAC output.
Replace harness if necessary.
Board problem.
Replace board if necessary.
Transformer problem.
Test transformer for 230VAC input.
Also check for 24VAC output.
Replace transformer if necessary.
Compressor failure or overheated. Wait for compressor to cool.
Check amperage draw on com-
pressor. Check compressor wiring
and terminals. Replace com-
pressor if necessary. Check that
defrost and refrigeration solenoids
are ON when defrosting.
