Troubleshooting Guide

Only a qualified service technician should perform Electrical and mechanical adjustments or repairs. Always disconnect power before attempting any maintenance procedures.

PROBLEM	PROBABLE CAUSE	CORRECTIVE ACTION

No powder dispensed	• Rinse switch turned to “RINSE ON” position	• Flip rinse switch to “RINSE OFF” position
into mixing funnel	• Powder hopper dispense outlet clogged	• Refer to Cleaning of Hoppers section
	• No or low powder level in hopper	• Refill hopper
	• Hopper drivelink not engaged with motor	• Remove and reinstall hopper and ensure
		engagement with motor
	• Hopper elbow is not directed into the mixing	• Turn down dispense elbow; line it up with mixing
	funnel	funnel

Machine will not	• Power turned “OFF” to machine	• Ensure power switch is in “ON” position, machine is
dispense any product		plugged in and water is turned on
(water or powder)	• Dispense cycle watchdog timer has tripped	• Reset machine by flipping power switch “OFF” then
		“ON” once (the maximum run time per head is
		limited to 40 seconds before watchdog timer
		disables the dispense heads)
	• Faulty transformer	• Contact factory for assistance
	• Faulty control board	• Contact factory for assistance

Product not whipping	• Whipper blade broken or missing	• Verify blade is in place. Replace if broken or missing

Water overflows mixing	• Water flow too fast	• Contact factory for assistance
funnel		Dump valves to be adjusted
	• Whipper chamber outlet restricted	• Remove obstruction
	• Whipper blade broken or missing	• Verify blade is in place. Replace if broken or missing

Drink is too weak or		Refer to Drink Strength Adjustment section (page 6)
strong

Drink is too hot or cold		Refer to Thermostat Adjustment section (page 6)

No hot water from	• Check for flashing lights on controller	• Refer to Controller Diagnostics section (page 20)
dispense head	• Water level in tank is below water probe	• Ensure that water supply to machine is “ON” and
		reset power to machine
	• Thermostat not adjusted	• See Thermostat Adjustment section (page 6)
	• Faulty heater relay	• Replace heater relay (page 18)
	• Dump tube from water tank is kinked	• Check tubing for obstructions
	• Water shorting out probe connections	• Dry connections on tank

Water tank boils water	• Check for flashing lights on controller	• Refer to Controller Diagnostics section (page 20)
	• Thermostat adjustment set too high	• Refer to Thermostat Adjustment section (page 6)
	• Faulty heater relay	• Replace heater relay (page 18)

No water dispensed	• Water supply to machine turned “OFF”	• Turn “ON” water supply to machine
from dispense nozzle	• Check for flashing lights on controller	• Refer to Controller Diagnostics section (page 20)
	• Faulty dump valve	• Replace dump valve (page 14)

Water overflows from	• Leaky inlet water valve	• Replace inlet water valve
water tank	• Faulty level probe connection	• Check level probe connections
	• Faulty level probe due to mineral build-up	• Replace probe
	• Inlet water pressure too high	• Install pressure regulator to water inlet
	(greater than 120 psi)

Machine inadvertently	• Wet wiring connections on harness or	• Allow connections to dry
dispenses from	controller
dispense heads

Drink is cold and ready	• Check for flashing lights on controller	• Refer to Controller Diagnostics section (page 20)
light is on

Page 20	Crathco® Powdered Beverage Dispensers

CC-302-20 specifications

The Grindmaster CC-302-20 is a highly regarded coffee brewing machine designed for cafes and restaurants that require both quality and efficiency. This model stands out for its user-friendly features and advanced brewing technology, making it a popular choice among coffee enthusiasts and professionals alike.

One of the main features of the Grindmaster CC-302-20 is its programmable brewing cycles. This allows operators to customize brew times and temperatures according to their specific coffee offerings. The machine can brew up to 3 gallons of coffee per cycle, ensuring that businesses can meet high demand during peak hours without compromising on quality.

A significant characteristic of the CC-302-20 is its digital display, which provides real-time information on brewing status and alerts for maintenance needs. This feature ensures that users can monitor the brewing process at a glance, minimizing the chance of over-brewing or under-brewing coffee. The machine also includes an automatic shut-off function, which enhances energy efficiency and safety.

The Grindmaster CC-302-20 incorporates advanced brewing technology, notably its precision temperature control system. This system guarantees that water is heated to the optimal brewing temperature, which is crucial for maximizing the extraction of coffee flavors. This feature is particularly beneficial for cafes that pride themselves on serving high-quality, flavorful coffee.

Additionally, the CC-302-20 is designed with a durable, stainless steel construction, ensuring long-lasting performance in busy commercial environments. Its compact footprint makes it suitable for various countertop sizes, while the sleek design contributes to an appealing aesthetic in any coffee shop or restaurant.

Maintenance is another critical aspect of the Grindmaster CC-302-20. The machine is engineered for easy access to components, making it simple for staff to clean and service as needed. Regular maintenance routines can help extend the life of the equipment and maintain optimum brewing performance.

In conclusion, the Grindmaster CC-302-20 coffee brewer is an exceptional choice for establishments seeking a reliable, efficient, and high-quality brewing solution. Its programmable features, precision temperature control, and durable design make it an investment that meets the demands of busy coffee environments while consistently delivering delicious brews.

Grindmaster CC-302-20 Troubleshooting Guide, Problem Probable Cause Corrective Action

Models: CC-302-20

Troubleshooting Guide

PROBLEM

PROBABLE CAUSE

CORRECTIVE ACTION

Crathco® Powdered Beverage Dispensers

CC-302-20 specifications