Bunn VP17A Service Manual Page 10

  • Download
  • Add to my manuals
  • Print
  • Page
    / 17
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 9
Page 10
FIG. 3 CONTROL THERMOSTAT TERMINALS
P1263
CONTROL THERMOSTAT
Location:
The control thermostat is located inside the trunk
on the upper left side of the component bracket.
Test Procedures:
1. Disconnect the brewer from the power source.
2. With a voltmeter, check the voltage across the blue
wire on the control thermostat and red insert on
terminal block. Connect the brewer to the power
source. The indication must be 220 to 240 volts.
3. Disconnect the brewer from the power source.
If voltage is present as described, proceed to #4.
If voltage is not present as described, refer to the
Wiring Diagrams
and check the brewer wiring har-
ness.
4. Gently remove the capillary bulb and grommet
from the tank.
5. With a voltmeter, check the voltage across the
black wire of the control thermostat and the red
insert on the terminal block, when the control
thermostat is turned "ON" (Fully clockwise). Con-
nect the brewer to the power source. The indica-
tion must be 220 to 240 volts ac.
6. Disconnect the brewer from the power source.
FIG. 2 CONTROL THERMOSTAT
P1262
SERVICE (cont.)
7. Voltage must not be present when the thermostat
is turned to the "OFF" position.
If voltage is present as described, reinstall the capillary
tube into the tank to the line 4.5" above the bulb, the
control thermostat is operating properly.
If voltage is not present as described, replace the
thermostat.
Removal and Replacement:
1. Remove wires from control thermostat.
2. Remove the thermostat capillary bulb by firmly
pulling up on the capillary at the tank lid. This will
disengage the grommet from the tank lid.
3. Remove the one #8-32 screw securing the control
thermostat to the component bracket inside the
trunk.
4. Slide the grommet to the line 4.5" above the bulb
on the new capillary tube.
5. Insert the capillary bulb through the hole in the
tank lid and press the grommet firmly and evenly
so that the groove in the grommet fits into the tank
lid.
6. Carefully bend the capillary tube so that the tube
and bulb inside the tank are in the vertical position.
NOTE - The capillary tube must be clear of any electri-
cal termination and not kinked.
7. Using one #8-32 screw secure the control thermo-
stat to the component bracket inside the trunk.
8. Refer to Fig. 3 when reconnecting the wires.
9. Adjust the control thermostat as required.
10860.1 091300
BLK or RED to Thermal Cut-Off
BLU to Terminal Block/Tank
Heater Switch
Page view 9
1 2 ... 5 6 7 8 9 10 11 12 13 14 15 16 17

Comments to this Manuals

No comments