Add water light will not turn off - Mr. Coffee BVMC-KG6 Single Serve Coffee Brewer, Black/Silver

A steady red light means that the unit has run out of water or is overfilled and will shut down automatically after the automatic drying period. A blinking red light means that the unit has been turned on without water. Add MyPurFill water, wait 30 seconds and turn on the unit again.
http://www.mypurmist.sg/faqs/

"The Igloo 100 series portable icemakers that are sold all over for about $100 have several minor issues. For ADD WATER light, there are 2 main ones. The water SENSOR is located at the top right of the unit. Remove the BACK cover with 6 screws on the bottom. Remove the TOP assy with 4 screws from inside the case. When the TOP is off, facing the unit from front, you see the small silver wire at the back right. Clean it AND the screw visible thru the hole in the plastic at the end of the sensor wire. The screw is the GROUND side of the sensor. This fixes many of the issues. But the SENSOR senses water FLOW, not water LEVEL. If the PUMP is not moving water, the sensor assumes you are OUT of water and turns on the ADD WATER light. The pump apparently burns out easily. Remove the PUMP wire connector from the CONTROL BOARD and check for continuity in the motor. Be sure your multimeter leads actually touch the connectors. The connection end is too small for most meters, so probe from the backside of the connector. If motor is good, check for 12vdc at the board side of the pump connector. Plug in, turn on. Should be 12vdc within 45 seconds. See, the water pump comes on first. When water is moving over the sensor, then the board will turn on the compressor and start freezing. "

What do you need to know?

Requires cleaning and flushing

The water pump system is not primed properly. Remove the water tank while the pump is running and put back a couple of times. If not working, when the power is off, using a straw, blow air through and try to **** through the water port at the bottom of Keurig. Plug the water tank again in and start the system. It will take some time to prime, keep trying. There is nothing wrong with the machine, but the water pump circuit.

You have gas water heater.
Probably a tank-type gas water heater.

The plumber can fix water heater.
If you want to fix water heater yourself, then more information is needed to narrow down scope of answer.
1) Add a comment for possible help.
Instructions for lighting the water heater appear on front of water heater. Do those instructions include lighting the pilot light?
Will the pilot light stay lit?
On side of tank is a label. Label shows Brand, type (LP or NG), and model number.
This information can help narrow the type of gas control valve, and point direction for troubleshoot.
Add a comment with this information for possible help.

2) Do-it-yourself: Open following link for do-it-yourself resources to help solve gas water heater problems:
Generally the instructions show how to clean water heater parts, check venting, and show different types of gas controls, plus links for pilot light problems and cleaning air intake.
http://waterheatertimer.org/How-to-install-gas-water-heater.html#troubleshoot

My Eco light was flashing fast ,and the drain pump was running continuasly.It turned out at the drip tray was full of water and micro switch add activated . i tipped the machine forward drain the water off the machine as be working fine since. PS dont know why drip add so much water in it, unless theres a leak. ???

What espresso make do you have? I just posted the same question! Mine won't work either and its so frustrating...I called the nuova simonelli tech guy and he said that it sounded like the water I was using wasn't hard enough, but I have well water...so basically they don't know whats wrong.