Student-Contributed Wiki

Student-Contributed Wiki

An awesome student from our education program made this wiki. It is not managed by iFixit staff.

Keurig K55 Troubleshooting

Released December 2015, model name K55/K-Classic

Coffee Tastes Metallic or Bitter ¶ 

Coffee from Keurig tastes strange.

Calcium Build Up ¶ 

If your coffee tastes bitter, your Keurig’s water lines may have calcium buildup and require cleaning.

To clean your water lines, you need the following:

  • 48oz of Distilled vinegar
  • A large coffee mug
  • A cloth or rag

To begin cleaning your Keurig, follow the below steps:

  1. Empty your Keurig’s reservoir of water and clean the walls generally with soap and water
  2. Clean out your K Cup holder, removing grime and coffee grounds
  3. Fill your water reservoir up to the fill line with distilled vinegar
  4. Place your coffee cup below the coffee dispenser
  5. Set your Keurig to the largest brew size, ensuring that no K Cup is inside the holder
  6. Run the largest brew size
  7. Dump the outputted vinegar from your coffee cup into your sink
  8. Continue running cycles until the reservoir is empty

Outdated Water Filter ¶ 

If your coffee tastes metallic, it may be time to replace the water filter inside your water reservoir. Follow our guide on replacing your Keurig’s Water Filter.

Keurig Doesn’t Turn On ¶ 

Keurig is unresponsive to the power button.

Dead Outlet or Blown Fuse ¶ 

If your Keurig is unresponsive to power button presses, the outlet you are using may be malfunctioning.

Move your Keurig to a different area and try a new outlet.

Faulty Power Cable ¶ 

If your Keurig is still not turning on, your power cable may be faulty. Follow our guide on replacing the Power Cable.

Keurig Not Brewing a Full Cup ¶ 

Keurig is brewing a partially filled cup, less than expected.

Faulty K Cup ¶ 

The K Cup brand you are using may be faulty, try brewing a cup of just water (without a K Cup inserted), and see if a full cup is poured. If a full cup is brewed, you should consider buying a new brand of K Cups.

Faulty Secondary Water Pump ¶ 

If your Keurig is not brewing a full cup of coffee, you may need to replace the secondary water pump in your Keurig. A faulty water pump will prevent enough water from reaching your mug.

Follow our guide on removing the Secondary Water Pump here.

K Cup Holder Will Not Close ¶ 

Lid will not close or opens again after closing.

Dirty K Cup Holder ¶ 

If your K Cup Holder does not close or is jammed, it may need to be cleaned. Excess coffee grounds may be preventing the holder from closing. Follow our guide on removing and cleaning the K Cup Holder here.

Faulty K Cup ¶ 

The K Cup you are using may be damaged or warped. Try grabbing a new K Cup.

Defective Lid Spring ¶ 

If your Keurig's lid will not close or does not stay open, you may need to replace the spring underneath the handle.

Check out our guide on replacing your Keurig's Lid Spring.

Coffee Temperature is Low ¶ 

Coffee brewed from the Keurig is luke warm or cold.

Calcium Build Up in Water Pipes ¶ 

If the coffee from your Keurig is no longer hot, the water lines in your Keurig may need to be cleaned due to excess calcium build up.

To clean your water lines, you need the following:

  • 48oz of Distilled vinegar
  • A large coffee mug
  • A cloth or rag

To begin cleaning your Keurig, follow the below steps:

  1. Empty your Keurig’s reservoir of water and clean the walls generally with soap and water
  2. Clean out your K Cup holder, removing grime and coffee grounds
  3. Fill your water reservoir up to the fill line with distilled vinegar
  4. Place your coffee cup below the coffee dispenser
  5. Set your Keurig to the largest brew size, ensuring that no K Cup is inside the holder
  6. Run the largest brew size
  7. Dump the outputted vinegar from your coffee cup into your sink
  8. Continue running cycles until the reservoir is empty

0 Comments

Add Comment

View Statistics:

Past 24 Hours: 3

Past 7 Days: 31

Past 30 Days: 141

All Time: 732