6.14 ELECTRONICS BOARD REMOVAL
A. Remove drip tray, splash plate and drain tube.
B. Remove thumb screw and hinge pin holding CPU box.
!
WARNING
THE COMPRESSOR DECK IS FED BY THE LINE VOLTAGE. DISCONNECT POWER BEFORE
ATTEMPTING TO REPAIR ANY COMPONENTS ON THE DECK.
ADVERTENCIA
LA CUBIERTA DEL COMPRESOR ES ALIMENTADO POR LA TENSIÓN DE LÍNEA. DESCONECTE
LA CORRIENTE ELÉCTRICA ANTES DE INTENTAR REPARAR LOS COMPONENTES DE LA CUBIERTA.
AVERTISSEMENT
LE CARTER DE COMPRESSEUR EST ALIMENTÉ PAR LA TENSION DE LIGNE. DÉBRANCHEZ
L’ALIMENTATION AVANT DE TENTER DE RÉPARER LES COMPOSANTS DE LA PLATE-FORME.
C. Remove control box cover.
D. Unplug all connectors from the CPU Board. This enables the cover to be separated from the
electronics box.
22
!
WARNING
DISCONNECT POWER BEFORE ATTEMPTING TO REMOVE THE ELECTRONICS BOARD.
ADVERTENCIA
DESCONECTE LA ENERGÍA ANTES DE INTENTAR QUITAR LA JUNTA DE ELECTRÓNICA.
AVERTISSEMENT
COUPEZ L’ALIMENTATION ÉLECTRIQUE AVANT DE RETIRER LE CONSEIL ÉLECTRONIQUE.
!
WARNING
BEFORE REMOVING ANY OF THE PRINTED CIRCUIT BOARDS, TURN KEYLOCK SWITCH TO OFF
POSITION. THIS TURNS THE MAIN POWER TO THE CIRCUIT BOARDS OFF AND PREVENTS ARCING AT THE
EDGE CONNECTOR AND PREVENTS DAMAGE TO THE BOARDS.
ADVERTENCIA
ANTES DE RETIRAR CUALQUIERA DE LAS TARJETAS DE CIRCUITOS IMPRESOS, GIRE EL
BLOQUEO DEL TECLADO CAMBIAR A LA POSICIÓN OFF. ESTO ACTIVA LA ALIMENTACIÓN PRINCIPAL AL
CIRCUITO TABLEROS FUERA Y PREVIENE DE ARCO EN EL CONECTOR DE BORDE Y EVITA DAÑOS EN LAS
TARJETAS.
AVERTISSEMENT
AVANT DE RETIRER L’UNE DES CARTES DE CIRCUITS IMPRIMÉS, TOURNER
VERROUILLAGE PASSER À LA POSITION OFF. CELA TRANSFORME LA PUISSANCE PRINCIPALE DU CIRCUIT
PLANCHES HORS ET EMPÊCHE D’ARC AU NIVEAU DU CONNECTEUR ET EMPÊCHE BORD DOMMAGE POUR
LES CONSEILS.
E. Turn the five plastic standoffs one half turn counterclockwise. Remove the CPU.
F. Replacement is the reverse of removal.
6.15 WRAPPER REMOVAL
A. Unplug unit.
B. Remove drip tray and splashplate.
C. If unit is plumbed through wrapper hole at the back of the unit, turn water supply
OFF
. Turn
water ball valve, located behind drive motors, to
OFF
position. Remove water supply, including
ball valve (this will prevent water from draining from the water supply), from the unit. Remove
power cord from unit.
D. Remove door.
E. Remove top cover.
F. Unplug keyswitch from electrical box.
G. All wrapper screws are located on the left and right vertical faces on the front of the unit.
1. Splash plate area: Remove all six screws.
2. Door area: There are five screws on each side. Loosen the second and fourth screws.
H. Spread the wrapper apart at the front of the unit, and then carefully remove wrapper.
J. Replacement is reverse of removal.
7. TROUBLESHOOTING
REFRIGERATION SYSTEM
The refrigeration system basically consists of a compressor, condenser, evaporator, fan, and control box
The components are mounted on a common base or deck. The fan and compressor are electrically
connected in parallel. The ice bank control module, located in the control box, is connected to a probe
that is mounted to the evaporator coils. The probe senses the presence of ice and signals the controller to
turn the compressor/fan off. The probe has to be in water for the compressor to run. The module also has
a delay (approximately five minutes) to prevent the motor from starting under load. This would occur if the
power were interrupted, as well as on initial start-up.
