Troubleshooting

The following pages are provided to help determine the cause of problems with operation of the brewers and to indicate the appropriate solution for the problems. For each problem, the possible causes should be checked in the order shown until the exact nature of the problem is determined.

The following procedures must be performed by a qualified service technician. Disconnect power to machine before servicing.

Error Messages

Problem

Possible Causes

Service Check

Remedy

 

 

 

 

ER1

• Fill valve on for over

• Check system for

• Correct any leaks and reset

 

6 min. (This occurs

water leaks.

controller.

 

during initial fill on some

 

 

 

units – see Initial

 

 

 

Start-up.)

 

 

 

 

 

 

ER2

• Thermistor failure or

• Ensure that connector

• Secure connections and reset

 

loose connections in

is securely attached to

controller. If error reoccurs,

 

thermistor circuit.

controller and that

replace thermistor.

 

 

thermistor is securely

 

 

 

connected.

 

 

 

 

 

ER3

• Thermistor is reading

• Check tank

• Replace thermistor.

 

out of range.

temperature.

 

 

 

 

 

ER4

• No heat is detected

• See Heating Problems

• See Heating Problems

 

 

 

 

Filling Problems

Problem

Possible Causes

Service Check

Remedy

 

 

 

 

Overfilling water

• Fill valve not sealing

• Check to see if water

• Disassemble valve and clean

tank when power

properly.

enters tank continuously

out debris. Valve may need to

is Off

 

(usually at a slow rate).

be replaced.

 

 

 

 

 

 

 

Overfilling water

• High electrode coated

• Disconnect electrode

• Remove electrode assembly

tank only when

with lime or faulty.

wire at quick connect

and clean the probes. If

power is On

 

(brown wire). Connect a

problem is not corrected,

 

wire from the quick con-

replace electrode assembly.

 

 

 

 

nect to the cabinet body.

 

 

 

If filling stops, this is the

 

 

 

error cause.

 

 

• Connection from

• Check to ensure

• Make connection to tank

 

control board to tank

connection (red

secure.

 

body faulty.

wire) is secure.

 

 

• Control board is faulty.

• Secure connection from

• Replace control board.

 

 

control board to metal

 

 

 

enclosure does not

 

 

 

stop filling.

 

 

 

 

 

Shuttle Brewers & Airpot/Shuttle Brewers

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Grindmaster AM-344-04 instruction manual Troubleshooting

AM-344-04 specifications

The Grindmaster AM-344-04 is a robust and versatile appliance designed primarily for coffee brewing in commercial settings. This machine stands out in the industry due to its combination of advanced features, user-friendly design, and exceptional brewing capabilities, making it an essential addition for coffee shops, restaurants, and cafes that prioritize quality and efficiency.

One of the main features of the AM-344-04 is its programmable brewing system, which allows users to set precise brewing times and batch sizes. This customization ensures that each pot of coffee is brewed to perfection, catering to diverse customer preferences. The machine can brew up to 12 cups of coffee at a time, ideal for busy environments that demand high throughput.

The Grindmaster AM-344-04 is equipped with a digital control panel that simplifies operation for users. The intuitive interface provides real-time feedback on brewing cycles, water temperature, and brew times, enabling baristas to monitor the process closely. Additionally, the machine's high-efficiency heating element ensures rapid water heating, reducing wait times and increasing productivity, especially during peak hours.

Another notable characteristic of the AM-344-04 is its dual-funnel design, which allows for simultaneous brewing of different coffee blends. This feature is particularly beneficial for establishments that offer a variety of coffee types, as it enables operators to meet diverse customer needs without compromising on quality or service speed.

In terms of build quality, the Grindmaster AM-344-04 features a durable stainless-steel construction that not only enhances its aesthetic appeal but also ensures longevity. The machine is designed to withstand the rigors of daily use in a bustling environment, making it a reliable choice for coffee professionals.

Moreover, the AM-344-04 incorporates advanced brewing technology, including precision spray head systems that evenly distribute water over the coffee grounds. This feature enhances extraction, resulting in a richer and more flavorful brew. Additionally, the machine includes a built-in water filtration system, which helps to improve water quality, further enhancing the taste of the coffee.

Lastly, the Grindmaster AM-344-04 is designed with easy maintenance in mind. Its removable components facilitate quick cleaning, ensuring that the machine remains in optimal condition for high-quality brewing. This attention to ease of use and maintenance makes the AM-344-04 a smart investment for any coffee service operation looking to elevate its offerings. Whether you are a seasoned barista or a new coffee shop owner, the Grindmaster AM-344-04 promises to deliver an exceptional brewing experience.