Model FDD2500
Page 13
Problem
Possible Cause
Solution
LCD display shows “Standby”
• Machine is in “STANDBY” mode
• Press “I/O” on touchpad to activate machine. (Standby switch
acts as a power switch to the control module of the machine;
however, the machine is still powered up.)
No water or product is
dispensed
• Machine is in “STANDBY” mode
• Door is open
• Press “I/O” on touchpad to activate machine. (Standby switch
acts as a power switch to the control module of the machine;
however, the machine is still powered up.)
• A door interlock disables the dispense circuit when the door
is open. The door interlock switch is located behind the door
near the lower hinge and can be overridden by pulling the
switch plunger out. The switch will reset when the door is
closed.
No water is dispensed
• Blockage in water delivery circuit
• Check for kinked water delivery tubing, lime and scale blockage
to and from dump valve.
Powder not dispensing
• Coffee dispense outlet clogged
• Hopper drive link not engaged with drive
motor
• Low or no product
• “Drink Strength” setting too low
• Clean hoppers according to cleaning procedure
• Remove and reinstall hopper to engage with drive motor
• Check product container for product
• Check “Drink Strength” setting (see programming guide for
setting Drink Strength)
Water overflows mixing funnel • Powder flow rate too fast – too much powder
to water ratio can prevent adequate mixing
resulting in blockage in mixing funnel
• Outlet is restricted
• Adjust powder flow rate to prevent blockage in mixing funnel
• Ensure mixing chamber outlets are free of blockage. Follow
rinse and cleaning procedure to prevent buildup of product in
mixing system.
Drink is too cold or hot
• Check temperature set point and adjust as needed. (Refer to
Programming Guide for Thermostat Adjustment section)
Drink is too weak or strong
• Check drink strength to desired taste. (Refer to Programming
Guide for Drink Strength Adjustment)
Water tanks boils water
• Water temperature too high for elevation
of installation
• Adjust water temperature down. Refer to Thermostat
Adjustment section.
Troubleshooting Guide (cont.)
If you still need help, call our service department (Monday – Friday, 8 am – 6 pm EST) at (800) 695-4500 (USA and Canada
only) or (502) 425-4776 or an authorized service center in your area. Please have the model and serial numbers ready so
that accurate information may be given. Prior authorization must be obtained from Grindmaster Corporation’s Technical
Services Department for all warranty claims.
