Manual PN 119985 Rev 02-06 Firmware Rev 4
4
OPERATION INSTRUCTIONS
Coffee Preparation Procedures
1)
Place filter into brew basket.
2)
Put the proper amount of coffee into the filter.
3)
Slide the brew basket into holder.
4)
Place the appropriate empty decanter into position below the brew basket. For airpots first open lid and remove
pump stem unless of a brew through design. For other dispensers remove the lid unless it is a brew through
design.
5)
Press the appropriate brew start switch. Note: a brew cycle may be initiated even if the heating light is on. The
brewer features an autoarm circuit which will flash the heating light indicating that the brewer is heating and will
begin to brew immediately after the heating cycle is complete. To over ride autoarm, hold in brew button until
cycle starts (5 seconds).
6)
Do not remove decanter. Brew cycle may be canceled by depressing any brew button or the cancel switch on
the front control panel.
7)
Hot water will be delivered through the sprayhead. This distributes the hot water evenly over the coffee bed
within the brew basket. The coffee brew will drain from the brew basket into the decanter below.
8)
The Brewing light should continue to flash until all the liquid has finished flowing from the brew basket. Do not
remove decanter until the brewing process has stopped and all liquid has stopped flowing from the brewbasket.
9)
The resultant coffee brew should be crystal clear and have the desired properties attainable through excellent
extraction.
10)
To clean brew basket simply remove from brew rails and dump filter into waste basket. The brewing process, as
described above, can now be started again.
Error Messages
This brewer incorporates a number of self diagnostic test that are routinely run. If a fault condition should occur the
unit will display an error number as outlined below. All errors may be reset by powering unit off and then back on.
Errors E1 and E2 are auto-resttable and will clear themselves if the condition that caused them goes away. You may
still brew, but call for service. E3 will disable heater but will allow brewing to take place. E4 and E-A must have power
to unit cycled to clear them. E5 will force brewer to use its default settings for brewing. E7 and E8 will clear when a
brew cycle is started. E9 will disable input from dsplay board. If error repeats, correct the cause of the error.
Error
Number
Description
Cause
What to Check
E1 Open
Thermistor
Resistance extremely high from
upper or lower thermistor
Check/replace thermistor.
E2 Shorted
Thermistor
Resistance extremely low from upper
or lower thermistor
Check/replace thermistor.
E3 Heater
Run
Error
Water did not heat within timeout
period
Check element for short and proper
resistance. Replace if bad.
E4
Tank Fill Error
Water did not reach probe in timeout
period
Check valve function and flow rate.
Replace valve or increase flow rate. Check
probes for excess scale.
E5
Comm Error
Serial communication error to/from
non-volatile memory (EEPROM).
Replace main board.
E7 Open
Motor
Circuit
Open motor circuit. Pump 0 or
pump 1.
Check harness/motor continuity. Replace
if defective.
E8 Bad
(Open)
Motor Driver
Bad/open motor driver. Pump 0 or
pump 1.
Replace main board.
E9
SPI Comm Error
Serial communication error to/from
display board.
Verify good connection in proper port. Try
new display board. Try new main board.
E-A Possible
Leak
Detected
Water system may have a leak.
Check all plumbing system components for
possible leak. Look for water on counter.
Full
Filter Full
Water filter has reached capacity.
Replace filter.
