Welcome to the Keurig K155 Office Pro Manual. This guide helps you master your commercial coffee maker, from setup to troubleshooting, ensuring optimal performance every time.
Overview of the Keurig K155 Office Pro Coffee Maker
The Keurig K155 Office Pro Coffee Maker is a commercial-grade brewing system designed for office environments. It features a 90-ounce removable water reservoir, allowing up to 18 cups between refills. The full-color touchscreen interface offers intuitive controls for selecting brew sizes (4, 6, 8, or 10 oz.) and adjusting settings. Compatible with K-Cup pods, it delivers a wide variety of hot beverages, including coffee, tea, and hot cocoa. Built for durability and convenience, the K155 includes programmable auto-on/off functionality and a drain-and-store option for easy maintenance. Its sleek design and advanced features make it ideal for busy offices seeking reliable, high-quality brewing performance.

Installation and Setup
Ensure proper installation by following unboxing, power connection, and water supply steps. Prime the brewer for first use to guarantee optimal functionality and longevity of your Keurig K155 Office Pro.

Unboxing and Initial Setup
Begin by carefully unboxing the Keurig K155 Office Pro and placing it on a flat, stable surface. Remove all packaging materials and ensure the machine is free from any protective coverings. Plug the power cord into a nearby outlet and ensure the switch is turned on. Check that all components, such as the water reservoir, drip tray, and K-Cup holder, are included and properly aligned. Refer to the manual for a detailed list of parts and initial setup instructions to ensure everything is ready for first use.
Connecting to Power and Water Supply
Plug the Keurig K155 Office Pro into a nearby power outlet, ensuring the cord is securely connected. Locate the water reservoir, which holds up to 90 ounces of water, and fill it with fresh, filtered water if desired. Avoid using reverse osmosis water, as it may affect performance. Place the reservoir back into its designated slot, ensuring it clicks into position. Double-check that the machine is powered on and the water level is sufficient before brewing. Proper connection to both power and water supply ensures smooth operation and consistent brewing results. Always refer to the manual for specific guidelines.
Priming the Brewer for First Use
Before first use, prime the Keurig K155 Office Pro to ensure proper function. Fill the water reservoir with a mixture of half white vinegar and half water. Place a large mug on the drip tray and run a brew cycle without a K-Cup. Repeat this process until the “Add Water” message appears. Let the machine sit for 30 minutes to allow the solution to flow through the system. Afterward, rinse the reservoir thoroughly and run several cycles with fresh water to remove any vinegar taste. This process ensures the brewer is clean and ready for use.

Operating the Keurig K155 Office Pro
Operate your Keurig K155 Office Pro effortlessly with its intuitive touch screen. Choose from four brew sizes and use K-Cup pods for convenience. Refill the 90 oz. water reservoir as needed for continuous use.

Navigating the Touch Screen Interface
The Keurig K155 Office Pro features an advanced full-color touch screen interface designed for easy navigation. Users can select from four brew sizes (4 oz., 6 oz., 8 oz., or 10 oz.) to customize their beverage strength. The interface also allows adjusting brew temperature and programming auto On/Off settings for convenience. With intuitive controls, you can effortlessly manage brew options, monitor water levels, and access maintenance prompts. The touch screen ensures a seamless experience, making it simple to operate the machine in a busy office environment while delivering consistent, high-quality results every time.

Selecting Brew Sizes and Options
The Keurig K155 Office Pro offers four convenient brew sizes: 4 oz., 6 oz., 8 oz., and 10 oz., allowing users to customize their beverage strength and size. The touch screen interface makes it easy to select your preferred brew size and adjust settings for a stronger or milder flavor. With compatibility for a wide variety of K-Cup pods, you can enjoy coffee, tea, hot cocoa, or iced beverages. The machine also features programmable options, enabling you to tailor your brewing experience to suit individual or office preferences, ensuring every cup is brewed to perfection with minimal effort.
Using K-Cup Pods and the Water Reservoir

The Keurig K155 Office Pro is designed for seamless use with K-Cup pods, offering a wide variety of flavors and beverages. To brew, simply insert a K-Cup pod into the holder, close the lid, and select your desired brew size. The 90-ounce water reservoir allows for up to 18 cups before refilling, making it ideal for busy offices. Ensure only Keurig-approved K-Cup pods are used to maintain performance and warranty. The reservoir is removable for easy filling and cleaning, while the drip tray accommodates various cup sizes for convenience. Regularly cleaning the reservoir and descaling the machine will ensure optimal functionality and taste.

Maintenance and Troubleshooting
Regularly clean the Keurig K155 Office Pro by descaling with vinegar and checking for scale buildup. Use a paperclip to clean clogged needles for optimal performance.
Cleaning and Descaling the Brewer
Regular maintenance ensures optimal performance. Clean the Keurig K155 Office Pro by washing removable parts with soapy water and wiping the exterior with a damp cloth. For descaling, mix equal parts white vinegar and water in the reservoir. Run brew cycles without a K-Cup until the tank is empty, then let it sit for 30 minutes. Rinse thoroughly by running several water-only cycles to remove any vinegar taste. This process prevents mineral buildup and keeps your brewer functioning smoothly.
Common Issues and Solutions
Addressing common issues with the Keurig K155 Office Pro ensures uninterrupted use. If water stops flowing, clean the needles with a paperclip and descale the brewer. For power issues, check the cord and outlet connections. If the machine doesn’t turn on, ensure it’s properly plugged in and the outlet is working. If brew temperature can’t be adjusted, note that the K155 is designed to brew at optimal temperatures. For persistent problems, contact Keurig support for assistance. Regular maintenance and troubleshooting help extend the brewer’s lifespan and performance.

Customization and Advanced Features
The Keurig K155 Office Pro offers advanced customization options, including programmable auto-On/Off settings and adjustable brew temperatures, allowing users to tailor their coffee experience to their preferences.
Adjusting Brew Temperature and Settings
The Keurig K155 Office Pro allows users to customize their brewing experience with adjustable temperature settings. Access the advanced features through the full-color touchscreen interface; The machine offers a temperature range of 192°F for optimal brewing; Users can also program auto-On/Off settings for convenience. Select from four brew sizes (4 oz., 6 oz., 8 oz., or 10 oz.) to suit individual preferences. The machine ensures consistent flavor and temperature control, making it ideal for office environments. Note that manual temperature adjustments are not available, as the brewer is preset for optimal performance. Customize your coffee experience effortlessly with these advanced features.
Programming Auto-On/Off and Brew Size Defaults
Program your Keurig K155 Office Pro for convenience with auto-On/Off and brew size defaults. Use the touchscreen to set the machine to turn on/off automatically, saving energy. Select a default brew size (4-10 oz.) for consistent brewing. Access advanced settings by pressing buttons 8 and 12 simultaneously to unlock the hidden menu. This allows customization of brew size defaults and auto-On/Off timing. Ensure the machine is ready when needed and streamline operations in busy office environments. These features enhance efficiency and provide a tailored brewing experience for users.

Warranty and Customer Support
The Keurig K155 Office Pro is backed by a comprehensive warranty. For support, contact Keurig directly via phone or online resources for troubleshooting and repairs.
Understanding the Warranty Coverage
The Keurig K155 Office Pro is covered by a comprehensive warranty designed to protect your investment. The warranty ensures repairs or replacements for defects in materials and workmanship under normal use. Coverage typically lasts for one year from the date of purchase, but specific terms may vary. Proper use and maintenance, as outlined in the manual, are essential to uphold warranty validity. Damage caused by non-Keurig K-Cup pods or unauthorized accessories may not be covered. For detailed warranty terms or to file a claim, contact Keurig customer support directly.
Contacting Keurig Customer Support
For assistance with your Keurig K155 Office Pro, contact customer support via phone, email, or live chat through their official website. Representatives are available to address troubleshooting, warranty claims, and maintenance queries. Ensure to have your model number and purchase details ready for efficient service. Additionally, Keurig offers extensive online resources, including FAQs and downloadable manuals, to help resolve common issues independently. For optimal support, use only Keurig-approved K-Cup pods and accessories, as non-genuine products may void warranty coverage or result in service fees.
The Keurig K155 Office Pro Manual provides comprehensive guidance for optimizing your coffee maker’s performance. From initial setup to advanced customization, this manual ensures a seamless experience. Regular maintenance, such as descaling and cleaning, is essential for longevity. Troubleshooting common issues and using genuine K-Cup pods will maintain your brewer’s efficiency. Explore programmable features like auto-on/off and temperature adjustments to tailor your coffee experience. For further assistance, Keurig’s customer support is readily available. With proper care, the K155 Office Pro will consistently deliver perfect cups, making it an invaluable addition to any office setting.