Keurig Coffee Maker K40 Manual

The Keurig K40 Coffee Maker is a single-serve brewing system designed for home use, featuring multiple cup sizes, removable water reservoir, descaling function, energy saving mode, and compatibility with K-Cup pods. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Brewing Coffee 7. Maintenance & Cleaning 8. Descaling Process 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Brewing system, Removable water reservoir, K-Cup pod holder, Drip tray, Control panel with LCD display.

Feature	Description
Water Reservoir	48oz removable reservoir with handle
Brew Sizes	6oz, 8oz, 10oz cup options
LCD Display	Shows brewing status and settings
Energy Saving Mode	Auto shut-off after 90 seconds
Descale Indicator	Alerts when descaling is needed
Power Button	Turns brewer on/off
Brew Button	Starts brewing process
Cup Size Buttons	Selects brew size (6/8/10oz)
Add Water Indicator	Lights when reservoir is empty
Hot Water Button	Dispenses hot water only

Installation

Unpack and inspect contents. Place on clean, level surface.

Remove all packaging materials from brewer and accessories
Wash removable water reservoir with warm, soapy water
Place brewer on stable, level countertop away from edges
Fill reservoir with fresh cold water and reinstall
Plug into 120V AC power outlet

WARNING! Keep away from water sources. Do not immerse in water. Ensure proper ventilation around brewer.

First-Time Setup

Power on brewer; follow initial setup procedure.

Prime the system: Press power button, wait for ready light
Run water through: Place mug, press brew button without K-Cup
Repeat brewing cycle 2-3 times to clear system
Set auto-off: Press and hold power button for 3 seconds to toggle
Select default cup size: Press desired size button during standby

CAUTION! First few brews may taste different as system stabilizes.

Specifications

Dimensions: 10.5" W x 13.2" H x 11.5" D
Water Reservoir: 48oz capacity
Brew Sizes: 6oz, 8oz, 10oz
Power: 120V AC, 60Hz, 1470W
Brew Time: Under 1 minute
Weight: 7.5 lbs
Water Temperature: 192°F optimal brewing temperature
Compatibility: All K-Cup pod varieties
Warranty: 1 year limited

Controls and Settings

Access functions via control panel buttons and LCD display.

Control Panel: POWER, BREW, 6oz, 8oz, 10oz, ADD WATER indicator, DESCALING indicator.

Settings: Auto-off timing (90 seconds default), Brew size selection, Descaling mode activation, Energy saving mode. Display shows: Ready status, Brewing progress, Add water alert, Descaling reminder, Error codes.

Brewing Coffee

Brew single servings using K-Cup pods.

Lift handle: Open K-Cup holder
Insert K-Cup: Place pod in holder, close firmly
Place mug: Position cup on drip tray
Select size: Press 6oz, 8oz, or 10oz button
Start brew: Press BREW button
Wait: Brewing completes automatically
Remove pod: Open handle, discard used K-Cup

Tip: Use larger cup sizes for milder coffee, smaller for stronger brew.

Maintenance & Cleaning

Regular cleaning ensures optimal performance and coffee taste.

Daily: Wipe exterior with damp cloth
Weekly: Clean water reservoir and K-Cup holder
Monthly: Run vinegar solution through brewing system
As needed: Empty and clean drip tray
Descale: When indicator lights, follow descaling procedure

CAUTION! Unplug before cleaning. Never use abrasive cleaners.

Descaling Process

Remove mineral buildup every 3-6 months or when indicator lights.

Prepare solution: Mix Keurig descaling solution or white vinegar with water
Fill reservoir: Pour descaling solution into water reservoir
Start descale: Press and hold 8oz and 10oz buttons for 3 seconds
Brew cycles: Run multiple brew cycles without K-Cups
Rinse: Fill with fresh water, run 2-3 cycles to clear
Reset: Descaling indicator turns off when complete

WARNING! Use only Keurig descaling solution or food-grade vinegar.

Regulatory Information

UL listed: Complies with UL 197 safety standards. FCC Part 15: Class B digital device. Copyright © Keurig Green Mountain, Inc. For support, visit www.keurig.com or contact 1-866-901-2739. Made for use in USA and Canada.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Brewer won't turn on	Power connection	Check power cord; ensure outlet works; reset breaker
No water flow	Clogged needle/reservoir	Check water level; clean exit needle; descale system
Weak coffee	Brew size/mineral buildup	Use smaller cup size; descale brewer
Leaking water	Seals/reservoir	Check reservoir seating; inspect seals; empty drip tray
Error lights	System errors	Unplug for 2 minutes; restart; contact service if persists

Reset: Unplug for 2 minutes to reset electronic controls.

Service: 1-866-901-2739; www.keurig.com