13.35 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 (H2O and
water pump) too low or CO2 CO2) for 70-72psi. Adjust
out. regulators, if necessary. Replenish
CO2 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
70-72psi. If not within 2psi, adjust
regulator and/or check transducer.
Replace transducer, 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. Upper Board Problem. H. Circuits within Main Control (Upper)
Board electronics read transducer
pressures. Replace Main Control
(Upper) Board, if necessary
13.36 CO2 Out A. Unit receiving no CO2
. A. Assure CO2 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 ( CO2) for
and syrup pumps) too low. 70-72psi. Adjust regulators, if
necessary.
D. CO
2
can’t keep up with D. Reroute CO2 lines to maximize
unit demand. supply pressure or supply unit
dedicated CO
2 source. Bulk
regulator must be 105 psi
minimum, CO2 line must be tied to
main branch of bulk system, with
step down regulator (set 70-72psi)
between tie-in and unit
E. CO2 Transducer problem. E. Check CO2 pressure readout for
70-72psi. If not within 2psi, adjust
regulator and/or check transducer.
Replace transducer, if necessary.
F. Lower Board problem. F. Test lower board for +5, +15, and
–15 outputs at J-5 plug (see
Figure 14.3).
G. Upper Board Problem. G. Circuits within Main Control (Upper)
Board electronics read transducer
pressures. Replace Main Control
(Upper) Board, if necessary
13.37 RtnTempErr A. Temperature Sensor error A. 1. Check for short in sensor and
or failure. cable. LED on Main Control
board goes bright if short
occurs, goes out if open circuit
and stays dim if working
properly.
2. Check for poor connection in
sensor plug.
3. Replace temperature sensor.
29
TROUBLE CAUSE REMEDY
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