Introduction
This manual provides essential instructions for the installation, operation, and maintenance of your Bunn Axiom 15-3 Single Coffee Brewer, Model 38700.0043. Please read this manual thoroughly before operating the appliance to ensure proper function and safety. Retain this manual for future reference.
Important Safety Information
Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and injury to persons.
- Read all instructions before using the appliance.
- Do not touch hot surfaces. Use handles or knobs.
- To protect against fire, electric shock, and injury, do not immerse cord, plugs, or the appliance in water or other liquid.
- Close supervision is necessary when any appliance is used by or near children.
- Unplug from outlet when not in use and before cleaning. Allow to cool before putting on or taking off parts, and before cleaning the appliance.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner. Contact Bunn customer service for examination, repair, or adjustment.
- The use of accessory attachments not recommended by the appliance manufacturer may result in fire, electric shock, or injury to persons.
- Do not use outdoors.
- Do not let cord hang over edge of table or counter, or touch hot surfaces.
- Do not place on or near a hot gas or electric burner, or in a heated oven.
- Always attach plug to appliance first, then plug cord into the wall outlet. To disconnect, turn any control to "off", then remove plug from wall outlet.
- Do not use appliance for other than intended use.
Setup Instructions
1. Unpacking
Carefully remove the coffee brewer from its packaging. Inspect the unit for any shipping damage. Report any damage immediately to your supplier.
2. Placement
Place the brewer on a sturdy, level surface. Ensure adequate clearance around the unit for ventilation and access. Refer to the specifications section for detailed dimensions.
3. Electrical Connection
This appliance requires a 15 Amp, 120V electrical supply. Connect the power cord to a grounded electrical outlet. Do not use extension cords or adapters.
4. Water Connection
The Axiom 15-3 is designed for direct plumbing to a cold water supply. A qualified plumber should perform this connection. Ensure the water supply line is equipped with a shut-off valve and a pressure regulator if necessary. The water pressure should be between 20-90 psi (138-620 kPa).
5. Initial Cleaning
Before first use, clean the brew funnel, server, and sprayhead. Run several cycles of hot water through the brewer without coffee to flush the system.
Operating Instructions
1. Power On
Ensure the brewer is properly connected to power and water. Turn the main power switch to the "ON" position. The brewer will begin heating water to the optimal brewing temperature.
2. Preparing for Brewing
- Insert a clean filter into the brew funnel.
- Add the desired amount of ground coffee to the filter. Refer to your coffee supplier's recommendations for optimal brew strength.
- Slide the brew funnel into the funnel rails until it is securely in place.
- Place an empty server (e.g., 1.5GPR portable satellite server) under the brew funnel.
3. Brewing Coffee
Once the water is heated (indicated by the "READY" light or display), press the "BREW" button on the touch pad. The brewer will dispense hot water over the coffee grounds. Brewing will stop automatically when the cycle is complete.
4. After Brewing
Carefully remove the server with brewed coffee. Allow the brew funnel to cool before removing and discarding the used coffee grounds and filter. Clean the brew funnel after each use.
Maintenance
Regular maintenance ensures optimal performance and longevity of your coffee brewer.
Daily Cleaning
- Brew Funnel: Wash the brew funnel with mild detergent and warm water. Rinse thoroughly.
- Server: Clean the coffee server with a brush and mild detergent. Rinse thoroughly.
- Exterior: Wipe down the exterior surfaces of the brewer with a damp cloth. Do not use abrasive cleaners.
Weekly / Bi-Weekly Cleaning (Sprayhead)
The sprayhead should be removed and cleaned regularly to prevent mineral buildup and ensure even water distribution.
- Turn off the brewer and unplug it.
- Carefully unscrew the sprayhead from its fitting.
- Clean any mineral deposits from the sprayhead holes using a small brush or a paperclip.
- Rinse the sprayhead thoroughly and reattach it securely.
Descaling (As Needed)
Mineral deposits can accumulate inside the brewer, affecting performance. Descale the brewer periodically, depending on water hardness and usage. Use a commercial descaling solution designed for coffee brewers and follow the product's instructions. Always rinse the brewer thoroughly after descaling.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Brewer does not turn on. | No power supply. | Check power cord connection and circuit breaker. |
| Water not heating. | Heating element issue or low water level. | Ensure water supply is connected and turned on. If problem persists, contact service. |
| Coffee brews slowly or not at all. | Clogged sprayhead or mineral buildup. | Clean the sprayhead. Descale the brewer if necessary. |
| Weak coffee. | Insufficient coffee grounds or incorrect grind size. | Increase coffee amount or use a finer grind. Ensure sprayhead is clean. |
| Coffee overflows brew funnel. | Too much coffee, too fine a grind, or clogged funnel. | Reduce coffee amount, use coarser grind, or clean brew funnel. |
Specifications
- Brand: Bunn
- Model: Axiom 15-3 Single Coffee Brewer
- Model Number: 38700
- Capacity: 4.5 gallons per hour
- Voltage: 120 volts
- Wattage: 1600 watts
- Operation Mode: Semi-Automatic
- Material: Stainless Steel
- Dimensions (D x W x H): 22"D x 8.4"W x 20.5"H
- Item Weight: 30 pounds
- Included Components: Larger filter basket, digital controls, 1.5GPR portable satellite server, gourmet funnel
- Filter Type: Reusable
- Human Interface Input: Touch Pad
Product Dimensions Diagram
This diagram illustrates the physical dimensions of the Bunn Axiom 15-3 Single Coffee Brewer, including height, width, and depth, along with the location of the power cord connection. Key measurements are provided in inches. Note the power cord specification for 15 Amp, 120V machines only.
Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact Bunn customer service directly. Keep your purchase receipt and model number handy when contacting support.
Manufacturer: BUNN
Contact: Refer to Bunn's official website or your product documentation for current contact information.
