The Keurig B70 is a premium single-serve coffee brewing system featuring programmable settings, multiple cup sizes, removable water reservoir, descaling mode, energy saving auto-off, digital display, and compatibility with all K-Cup pods. This service manual covers technical specifications, maintenance procedures, troubleshooting, and repair instructions for qualified technicians.
Key technical parameters and operating specifications for the Keurig B70 brewing system.
| Specification | Value |
|---|---|
| Power Requirements | 120V AC, 60Hz, 1470W |
| Water Reservoir Capacity | 48 oz removable |
| Cup Sizes | 6 oz, 8 oz, 10 oz programmable |
| Brew Temperature | 192°F ± 5°F |
| Brew Time | Approximately 1 minute |
| Dimensions | 13.5" H x 10.2" W x 13.0" D |
| Weight | 9.5 lbs |
| Warranty | 1 year limited |
| Auto-off Timer | Programmable 2 hour default |
| Display | Blue digital LCD |
Critical safety information for service technicians and users.
WARNING! High voltage and temperature components present. Qualified technicians only.
Major components and their functions within the Keurig B70 system.
Step-by-step instructions for accessing internal components.
CAUTION! Label all wiring connections before disassembly.
Electrical schematics and component testing procedures.
| Component | Test Procedure | Specification |
|---|---|---|
| Main Power Switch | Continuity test | 0 ohms closed |
| Heating Element | Resistance test | 9.8 ohms ± 10% |
| Water Pump | Voltage test | 12V DC operating |
| Thermostat | Temperature test | Opens at 212°F |
| Control Board | Voltage test | 5V DC regulated |
Water flow path and component maintenance procedures.
Tip: Regular descaling prevents mineral buildup in water system.
Heating assembly service and replacement procedures.
WARNING! Heating tank retains high temperatures - allow to cool completely.
System programming and calibration procedures for optimal performance.
Recommended maintenance intervals and procedures.
| Interval | Procedure |
|---|---|
| Monthly | Descale with Keurig descaling solution |
| 3 Months | Clean water reservoir and drip tray |
| 6 Months | Inspect and clean brew chamber |
| Annual | Full system inspection and calibration |
| As Needed | Replace water filter |
Common error codes and their meanings for diagnostic purposes.
| Error Code | Description | Resolution |
|---|---|---|
| E-01 | Water heating timeout | Check heating element |
| E-02 | Brew over-temperature | Verify thermostat |
| E-03 | Water sensor fault | Check float sensor |
| E-04 | Brew button stuck | Inspect switch mechanism |
| E-05 | Pump motor fault | Test pump voltage |
Common issues and their solutions for the Keurig B70.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| No power | Power cord/outlet | Check outlet; test power cord; verify main switch |
| No water flow | Pump/reservoir | Check water pump; verify reservoir seated; clear clogs |
| Cold coffee | Heating system | Test heating element; check thermostat; descale system |
| Error codes | Various sensors | Refer to error code table; test sensors |
| Leaking water | Seals/connections | Inspect O-rings; check tube connections; replace seals |
Reset Procedure: Unplug for 2 minutes, then restart.
Technical Support: 1-866-901-2739; www.keurig.com