Warning Messages; Error Messages - Bunn AutoPOD Technical Training Manual

Warning Messages

Pressure switch activation during single cup brew, displays "Pressure Too High on the LCD"
The brew process is monitored by a pressure switch that is located in the incoming water line to the tank. The pur-
pose of the switch is to detect pressure above 45psi above the coffee during the brew process and abort the brew
cycle to eliminate the possibility of exceeding the limitation of the brew seal. Two variables come in play regarding
the troubleshooting process. First, incoming high water pressure is a factor to be ruled out during initial troubleshoot-
ing of the error fault "Pressure Too High". Generally, locations do not have high water pressure, but in the event a
location is pushing the recommended psi limitation in the manual (90psi) a factory set (50psi) pressure regulator can
be purchased from Bunn-O-Matic. The second variable you need to keep in mind is the product itself. The weight and
grind of the product is also a variable in determining the pressure. Even though you have moderate high incoming
pressure of 70psi, you could still activate the pressure switch because of the water not being able to push through
quick enough causing back pressure to build up above the coffee and back to the pressure switch. Another thing
to remember, factor in a tolerance range of opening the electrical connection in the switch. The range can be 40 to
45psi.
Cannot Brew High Pressure
Occurs when the J4-4 input is high when starting a brew cycle (pressure switch contact is open).
Pod Waste Bin Almost Full
Occurs when you are within 5 brews of the programmable BREWS TO EMPTY setting.
Pod Waste Bin Full Please Empty
Occurs when you are at the BREWS TO EMPTY program setting.
Replace Seal
The REPLACE SEAL SOON message occurs at 4500 brews.
The NOW message occurs at 5000 brews.
Waste Bin Removed Please Install
Occurs when J1-4 connector terminal has a low input when trying to start a brew cycle.
Low Temperature Press Brew To Brew Anyway
Occurs, (if brew lockout is disabled), when the water temperature in the brew tank is not up to temperature.
CANNOT BREW
HIGH PRESSURE

Error Messages

The brewer has several error messages for problems that may occur in the machine. The error screen is basic the
information on getting you started in diagnosing the actual failure. Some error messages will need resetting by follow-
ing the screen prompts to reset error fault (erase) or you will need to fix the problem and the machine will automati-
cally reset the error fault.
BREW TEMP SENSOR
OUT OF RANGE
HOT WATER SENSOR
OUT OF RANGE
POD WASTE BIN REPLACE SEAL
ALMOST FULL
!!! FULL !!! !!! NOW !!!
PLEASE EMPTY SEAL REPLACED ?
If the control board loose contact with the temperature sensor or senses shorted
connection it will display this message.
If the control board loose contact with the temperature sensor or senses shorted
connection it will display this message.
The heating relay has been activated for more than 6 minutes.
POD WASTE BIN
SOON REMOVED
PLEASE INSTALL
LOW TEMPERATURE
PRESS BREW
TO BREW ANYWAY
Bunn-O-Matic Corporation
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