Grindmaster Grind’n Brew Series Operator's Manual page 14

Troubleshooting Guide (continued)
WARNING:
To reduce the risk of electrical shock, unplug the dispenser power cord before repairing or
replacing any internal components of the unit. Before any attempt to replace a component, be sure to check all
electrical connections for proper contact. Only a qualified service technician should perform electrical and
mechanical adjustments or repairs.
PROBLEM
Grinder chute clogs
Quantity of coffee
dispensed each throw
is not the same
Circuit breaker continuously • Insufficient current due to use of
trips
Basket Out light flashing
(Display board displays
"ER1")
Basket Out light flashing
(Display board displays
"ER2 or ER 3")
Basket Out light flashing
(Display board displays
"ER4")
Water not hot enough
Water boiling (or steaming)
Start switch not working
(Basket Out light
illuminated)
No lights are on
(Including Warmer light)
No touch pad lights
(other lights o.k.)
Too much or not enough
water in decanter
Spray head dripping
Hot water spigot dripping
14
POSSIBLE CAUSE
• Air shutter fan is not operational.
• Air shutter fan is installed
backwards; Air flow must be
directed out of the grinder chute to
prevent moisture from entering
grinder chute.
• Defective timer in controller.
• Obstruction.
extension cord.
• Insufficient current due to
overloaded line.
• Water fill valve on too long.
• Water supply turned off.
• Problem with Thermistor.
• Heater Relay failed.
• Contactor Failed.
• Heater Failed open.
• Thermistor not set high enough.
• Defective thermistor.
• Thermistor set too high.
• Defective thermistor.
• Brew basket out of place.
• No power to brewer.
• Power switch turned Off.
• Touch pad disconnected.
• Water time adjustment.
• Lime build up in dump valve.
• Faulty seal.
Grindmaster
SOLUTION
• Confirm that fan is operational by
observation after removal of the
right side panel access plate.
• Ensure fan is installed with arrow
pointing toward the grind head to
allow air to be directed into the
brew funnel.
• Check the length of time grinder
runs with watch.
• Remove upper assembly and clean
obstruction.
• Plug unit directly into outlet. Do
not use extension cord.
• Designate single line for unit. Do
not use multi outlet box.
• Clean or replace water fill valve.
• Turn water supply on.
• Replace if defective.
• Hi Temp failed.
• Control Board output failed.
• Replace defective component.
• Reprogram thermistor / temp
settings.
• Replace Thermistor.
• Reprogram thermistor / temp
settings.
• Replace Thermistor.
• Replace basket.
• Turn power on.
• Turn switch on.
• Reconnect touch pad.
• Readjust.
• Delime unit.
• Replace seal.
® Grind'n Brew