Bunn ICB Coffeemaker User Manual


 
Page 59
TROUBLESHOOTING (cont.)
PROBLEM PROBABLE CAUSE REMEDY
Refi ll valve – Disconnect the brewer
from the power source and remove
wires from refi ll valve coil. Check
for continuity across the terminals
of the solenoid coil. If continuity is
not present, replace the refi ll valve.
If continuity is present, the coil may
be stuck closed. Shut water off to
brewer. Press the ON/OFF switch to
turn off the brewer. Open the faucet
and drain water down in the tank
until fl ow stops or slows to a trickle.
Attach a voltmeter to the terminals
of the refi ll solenoid. Connect the
brewer to the power source. Press
the ON/OFF switch to turn the brewer
on. Within fi ve seconds, voltage
should be present at the solenoid
terminals. If voltage is not present,
refer to the wiring schematic and
check the wiring harness.
Substitute a control board known
to be in good working order.
ON/OFF switch must be ON for the
refi ll circuit to operate. Turn ON.
5. Refi ll valve (Continued)
6. Control Board
7. ON/OFF Switch
Automatic refi ll will not operate or
display shows FILL TIME TOO LONG
(Continued)
37077 091704