(Section 14.34 continued from previous page.)
F.
Syrup Transducer problem.
F.
Check syrup pressure readouts
for 70-72 psi . If not within 2 psi,
adjust regulator and/or check
transducer. Replace transducer, if
necessary.
G. Lower Board problem.
G
Test lower board for +5, +15, and
–15 outputs on lower board test
points (see Figure 14.3).
H. Upper Board Problem.
H. Circuits within Main Control (Upper)
Board electronics read transducer
pressures. Replace Main Control
(Upper) Board, if necessary.
14.35 H20 Out
A. Unit receiving no water.
A. Assure water is turned on.
B. Restriction in lines.
B. Assure all lines are free of crimps
or restrictions.
C. Regulator pressures (unit
C. Check pressure readouts (H
2
O and
water pump) too low or CO
2
CO
2
) for 70-72 psi. Adjust
out.
regulators, if necessary. Replenish
CO
2
supply.
D. Water Pump failure.
D. Check pump and replace, if
necessary.
E. Water pressure too low,
E. Reroute water to maximize supply
can’t keep up with unit
pressure. Install Water Booster, if
demand.
necessary.
F.
Water Transducer problem.
F.
Check water pressure readout for
70-72 psi. If not within 2 psi, adjust
regulator and/or check transducer.
Replace transducer, if necessary.
G. Lower Board problem.
G. Test lower board for +5, +15, and
–15 outputs on lower board test
points (see Figure 14.3).
H. Upper Board Problem.
H. Circuits within Main Control (Upper)
Board electronics read transducer
pressures. Replace Main Control
(Upper) Board, if necessary.
14.36 CO2 Out
A. Unit receiving no CO
2
.
A. Assure CO
2
supply is not empty or
turned off.
B. Restriction in lines.
B. Assure all lines are free of crimps
or restrictions.
C. Regulator pressures (to unit
C. Check pressure readout ( CO
2
) for
and syrup pumps) too low.
70-75 psi (483.0-517.5 KPa).
Adjust regulators, if necessary.
D. CO
2
can’t keep up with
D. Reroute CO
2
lines to maximize
unit demand.
supply pressure or supply unit
dedicated CO
2
source. Bulk
regulator must be 105 psi (723.9
KPa) minimum, CO
2
line must be
tied to main branch of bulk system,
with step down regulator [set 70-
75 psi (483.0-517.5 KPa)] between
tie-in and unit.
E. CO
2
Transducer problem.
E. Check CO
2
pressure readout for
70-75 psi (483.0-517.5 KPa). If not
within 2 psi, adjust regulator and/or
check transducer. Replace
transducer, if necessary.
F.
Lower Board problem.
F.
Test lower board for +5, +15, and
–15 outputs on lower board test
points (see Figure 14.3).
(Section 14.36 continued on next page.)
30
TROUBLE
CAUSE
REMEDY