With the water jug full of water, the machine still keeps saying refill water.

Depends what cycle it's used on. For example "Spin" uses no water at all.
If you want to measure it, run a cycle without laundry, and mark on a piece of paper tape stuck to the porthole how far up the water level reaches. Count how many times the machine empties and refills during your chosen wash cycle. After the final spin, close the door, and slowly refill the machine via the detergent drawer from a graduated jug or watering can, until the water level reaches the mark on the porthole. Multiply the volume poured in by the number of cycles, and there's your answer - approximately.

If the reservoir is empty, you may want to start out by draining your radiator completely and starting over. there is a petcock valve at the bottom of the radiator. EPA Says you can't drain it onto the ground, but that's your decision. Anyway.....Buy full strength antifreeze. Take a empty gallon jug (could be a gallon milk jug so you can see more easily) and mix one half antifreeze to one half water.Take the cap off the radiator and add it it there.When it is full, put the cap back on the radiator and crank your vehicle to circulate it.Then start adding the antifreeze/ water mixture to the reservoir.As it goes down keep adding until it levels out at the normally hot line on the reservoir. As for the type of antifreeze........it's basically all the same which is Propylene glycol. CAUTION ! DON"T REMOVE THE RADIATOR CAP AFTER THE ENGINE HAS WARMED UP ! Hope this helps.

See page 8
8
8
FIRST USE
Rinse water tank before first use.
Fill water tank with fresh, drinking water. insert
water tank to machine.
Switch machine on. Power button starts
blinking red while machine is heating up for
approx. 40 seconds. Afterwards power button
lights steady green and machine is ready.
40 sec
ON
Push selection lever to the "HOT" position.
Machine starts rinsing.
Open locking handle and insert empty capsule
holder. Close locking handle.
Place jug under outlet.
Push selection lever to the "COLD" position.
Machine starts rinsing.
After approx. 60 seconds push selection lever
to the "STOP" position. Empty jug and refill
water tank with fresh, drinking water.
Make sure that the selection lever is in "STOP"
position. Then plug the power plug into a
mains power socket.
After approx. 60 seconds push selection lever
to the "STOP" position. Machine stops rinsing
and power button blinks red for about 5
seconds.
1
4
7
2
5
8
Place drip grid on drip tray. Then insert drip
tray at desired position of drip tray.
Then insert drip tray at desired position of machine.

Did you try taking the water jug out while it's still running and re-seating the jug?

use milk can with steam spout

DID YOU BLEED AIR OUT THE COOLANT SYSTEM.TO BLEED COOLANT SYSTEM, FILL THE COOLANT SYSTEM THROUGH THE RESERVOIR TANK OR THE RADIATOR UNTIL THE FULL COLD MARK IS REACHED.BESURE TO USE 50/50 HALF WATER AND ANTIFREEZE.YOU CAN BUY ANTIFREEZE THAT IS ALREADY PREMIX 50/50.AFTER ADDING ANTIFREEZE TO RESERVOIR OR RADIATOR FILL RADIATOR TO FULL MARK OR IF YOU DONT HAVE RADIATOR CAP ON RADIATOR POUR ANTIFREEZE IN THE OVERFLOW JUG UNTIL COOLANT LEVEL STAY THE FULL COLD MARK.WAIT AWHILE UNTIL COOLANT LEVEL STOP DROPPING.NOW INSTALL THE RADIATOR OR OVER FLOW JUG CAP.START THE ENGINE AND ALLOW IT TO RUN UNTIL NORMAL OPERATING TEMPERATURE IS REACHED AND THE UPPER RADIATOR HOSE BECOME HOT.STOP THE ENGINE AND OBSERVE THE COOLANT LEVEL IN THE OVERFLOW JUG. THE COOLANT LEVEL SHOULD BE AT THE FULL HOT LINE.ALLOW THE ENGINE TO COOL UNTIL THE AMBIENT TEMPERATURE IS REACHED THEN CHECK THE COOLANT LEVEL IT SHOULD BE AT OR ABOVE THE FULL COLD LINE.ADD MORE COOLANT IF NECESSARY. WARNING BECAREFUL WHEN OPEN THE RADIATOR CAP OR JUG OVER FLOW CAP.USE A LARGE RAG OVER THE RADIATOR CAP TO KEEP FROM GETTING SCALDED.OPEN RADIATOR CAP A LITTLE AT A TIME TO KEEP FROM GETTING SCALDED.WAIT UNTIL ENGINE COOL DOWN BEFORE OPENING RADIATOR CAP OR OVERFLOW JUG CAP.WEAR SAFETY GLASSES.

POUR COOLANT IN THE COOLANT OVERFLOW JUG,IF YOU DONT SEE A RADIATOR CAP AT RADIATOR..POUR COOLANT TO THE FULL COLD MARK ON OVERFLOW JUG.YOU DONT OVERFILL.

1. place water and descaler solution into tank
2. remove milk frother from arm
3. place a jug under steam arm
4.hold down the button 2nd from the right next to the menu button for a few seconds.
5.descaling machine open steam knob will appear on the display
6. after descale has finished "fill water tank" will appear.
7. refill tank with clean water no descaler
8.press the button 2nd from the right as in step 4
9. rinsing machine will appear.
10. when finished"close knob"will be displayed
11. refill water tank
12. ventilate will appear on the display
13.press the hot water button and allow to run
14.ventilate will disappear,warming should be displayed.
15. job done !!!

if the engine is completely empty--by time u refill the coolant bottle and engine, u will need an approximate 1 1/2 gallon , then mix it half and half---thats saying that ur jeep is indeed a 4.0 liter

the float switch is stuck. need to clean it out.