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Page 16 Grind’n Brew® Coffee Systems
Troubleshooting Guide (cont.)
If you still need help, call our Technical Service Department at 800-695-4500 (USA & Canada only) or 502-425-4776,
Monday through Friday, 8:00 AM - 8:00 PM Eastern Standard Time or an authorized service center in your area. Please
have the model and serial number ready so that accurate information can be given.
Prior authorization must be obtained from Grindmaster Corporation’s Technical Services Department for all warranty
claims.
Problem Possible Cause Remedy
Circuit breaker continuously
trips
• Insufficient current due to use of
extension cord
• Insufficient current due to
overloaded line
• Plug unit directly into outlet. Do not use
extension cord.
• Designate single line for unit. Do not
use multi outlet box.
Basket Out light flashing
(Display board displays “ER1”)
• Water fill valve on too long
• Water supply turned off
• Clean or replace water fill valve.
• Turn water supply on.
Basket Out light flashing
(Display board displays “ER2”)
• Problem with Thermistor • Replace if defective.
Basket Out light flashing
(Display board displays “ER3”)
• Heater Relay failed
• Contactor Failed
• Heater Failed open
• Hi Temp failed
• Control Board output failed
• Replace defective component
Water not hot enough • Thermistor not set high enough • Adjust potentiometer
Water boiling (or steaming) • Thermistor set too high
• Defective Thermistor
• Adjust potentiometer.
• Replace Thermistor.
Start switch not working
(Basket Out light illuminated)
• Brew basket out of place • Replace basket.
No lights are on
(Including Warmer light)
• No power to brewer
• Power switch turned Off
• Turn power on.
• Turn switch on.
No touch pad lights
(other lights o.k.)
• Touch pad disconnected • Reconnect touch pad.
Too much or not enough water
in decanter
• Water time adjustment • Readjust.
Spray head dripping • Lime build up in dump valve • Delime unit.
Hot water spigot dripping • Faulty seal • Replace seal.
Hot water spigot not dispens-
ing
• Drain tube limed-up
• Defective valve seat
• Delime tank and drain tube.
• Replace seat.
Warmer Failure • Loss of power
• Defective warmer switch or
warmer heater
• Check power source.
• Perform continuity test. Replace defec-
tive component.
Auger motor, water solenoid,
shutter not working
• Bus fuse on controller board is
blown
• Replace 5 Amp bus fuse.
Basket Out or Brew Cycle
indicators will not light up
• Polarity reversed
• LED burned out
• Connect black wire to + terminal of
LED.
• Replace LED.