Page 13
American Metal Ware
®
P400GNB-E
Service (cont.)
The remainder of this manual contains information to aid the service person making repairs to this equipment. This
page has information on performing common service tasks. A
Troubleshooting section
follows and can be used
to help determine the cause of problems with the equipment.
An illustrated parts breakdown follows and will help correctly identify replacement parts. For factory assistance, call
1-800-568-5715 between 8:00 a.m. and 6:00 p.m. Eastern time.
Finally, wiring diagrams are provided for the various models covered by this manual.
To Drain the Water Tank
1) Turn off power to the brewer and allow the brewer to cool before draining.
2) Remove the lower front panel.
3) Pinch or clamp the tube from the fill valve to the tank and disconnect the tube from the fill valve. Place tube
over a drain, release the clamp, and allow the tank to drain.
To Remove the Brew Valve
1) Turn off power to the brewer.
2) Remove the hopper cradle assembly as described in the
Removal of Hopper Cradle Assembly procedures
within the
Care and Cleaning section
of this manual.
3) Disconnect the wires attached to the valve.
4) Follow the
To Drain Water Tank procedure
on page 12 to drain the water tank below the brew valve’s water
level.
5) Tilt the inlet of the valve downward and pull sideways to disconnect the valve from the spray tee. Disconnect
the tubing from the valve.
To Remove and Replace the Heaters
1) Turn off power to the brewer.
2) Remove the hopper cradle assembly as described in the
Removal of Hopper Cradle Assembly procedures
within the
Care and Cleaning section
of this manual.
3) Disconnect the wire leads to the heating elements, thermistor, thermodisc and water probe. Note the positions
of each wire going to the heating element and the other components.
4) Remove the tank cover after removing the 3 wing nuts securing the cover to the tank. Lift the tank cover with
the heating element attached.
5) Remove the heating element from the tank cover.
6) Replace heater with sealing washers in the same configuration; hold the element so that it does not twist when
tightening nuts.
NOTE
: Make sure the thermodisc and bracket are returned to their original positions secured by the
heating element.
7) Replace the tank cover ensuring that the lid seal is positioned correctly.
8) Replace the heater wires; ensure that all electrical connections are secure. Replace the covers to the unit and
reconnect power.
