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Water overflow from brew basket
•Paper filter is not high enough and grounds are flowing over and plugging brew basket (use higher filter)
We suggest purchasing Bunn Brand Filters.
Excessive Steam
•Inlet water line connected to hot water supply (connect to cold water).
•Water pressure is too low, below 30 psi (increase water pressure).
•Spray head is plugged (remove spray head, and clean or replace).
•Water flow is too low, confirm by running a full carafe and checking volume. If water level in carafe is low,
call for technical service.
Taste Not Acceptable
•Quality or Quantity of coffee is not high enough (purchase better quality coffee)
•Spray head is plugged and water is boring hole in grounds (clean or replace spray head)
•Check temperature inside of a full carafe of water. It is possible heater is not working properly or thermostat
sensor is not working properly.
•Check volume of water on a full carafe setting. If it is overfilling and temperature is wrong, call for technical service.
Brewer turning on and off during cycle
•The brewer turns on and off the heater to control the water temperature. The amount depends on many factors
(inlet water temperature, water flow rate, heat wattage, supply voltage).
•Excessive on and off will also result in excessive steam. See excessive steam for more information.
•Clicking noise: This is temperature control and it is normal operation.
•Brewing light flashing: IRD problem.
Water temperature cold or luke warm
•Carafe not keeping coffee hot long enough. Consider if you are brewing a full pot or half pot. Half pot will not keep
coffee hot as long as the inner wall of carafe is heated by incoming coffee fluid. Pre-heat carafe for better and longer
performance of a half pot.
•Check supply voltage is maybe is too low, below low 115 VAC (increase supply voltage).
•Water flow rate too high, confirm by running 2-3 pots of water first then call for technical service.
•Heater failed, call for technical service.
•Internal electrical connection failed, call for technical service.
Carafe or Mug not detected (flashing brew light)
•IRD cannot detect flat black or clear glass mug (change mug color)
•IRD window is dirty (wipe with moist towel and dry)
•Mug not close enough to IRD (move farther into brewer)
•IRD is not set properly, call for technical service.
Water dripping from spray head
•Spray head plugged (replace or clean spray head)
•Normally, some water will drip from the spray head shortly after brewing
•Slight valve leak (debris inside valve, disconnect water and reconnect, run 1-2 full cycles of water in carafe to
dislodge debris and check)
•Valve leak permanent, call for technical service.
Water dripping down walls of carafe area
•Spray head plugged (replace or clean spray head)
•Spray head leak around threads, (remove spray head, clean and re-install for tight fit)
Coffee not staying warm
•Possible carafe vacuum failure (if carafe is warm to touch, replace carafe)
•Preheat carafe before brewing coffee especially if used for half pot. (run brew cycle without filter or coffee)
•Check volume of water by running a full cycle of water without coffee. If carafe overfills call for technical service.
•Check voltage to coffee maker.
Water leak from back of brewer
•Check quick connect (push connectors together firmly and slightly twist)
•Poly line leak at brewer, call installer to repair.
•Valve connection leak, call for technical service.
