Had a back flow test water will not come out of any heads the water is turned on tried to Manuel turn on the water turning knob 1/4 turn still no water the unit I have is a Hunter SRC Plus

Step 1
Turn off the water to your faucet.
Step 2
Remove the handle to the faucet. Remove the small screw under the lever handle with an Allen wrench or Phillips head screwdriver, depending on what type of screw is present. Slide the handle back and off the faucet.
Step 3
Remove the temperature control knob, which is the round, dial-shaped fitting over the faucet cartridge. Put the manufacturer-supplied adapter on the cartridge. Line up the lever stop pin with the arrow symbol on the cartridge.
Step 4
Turn on the water and rotate the adapter to the left, or counter-clockwise, until the water temperature is at the level you want. Take note of the number to which the adapter points.
Step 5
Shut the faucet off by turning the adapter to closed and line up the limit stop dial with the number you noted previously.
Step 6
Assemble the faucet by replacing the temperature control knob and handle, then tighten the handle screw. Turn on the water and operate the faucet. If temperature is not set properly, repeat as necessary until you achieve the right setting.

1. • Test the dripping water with your hand to make sure that it is the hot water side that is leaking. Lay a rag over the sink drain to keep parts from falling down it. Locate the hot and cold shutoff valves under the sink and turn the knobs clockwise by hand until they close. If the knobs remain stiff, use a pair of pliers to gently turn them until the knob begins to move, then finish turning by hand.
     
   • 2
     Pry the decorative cap off the faucet top with a small thin, flat-head screwdriver. Remove the cap that has the "H" letter on it. Depending upon the handle screw configuration, use a flat-head or Phillips-head screwdriver to remove the handle screw. Gently pry up on the handle from all angles and pull it up and off the splines of the stem.
     
   • 3
     Use a crescent wrench to turn the hot water stem nut counterclockwise until it comes completely off the stem shaft. Wiggle the stem with your fingers and pull it out of the faucet. If the washer on the bottom of the stem is deformed, it indicates the source of the leak. However, remove the old seat from the faucet base with an Allen wrench or a seat removal tool.
     
   • 4
     Wipe out the inside of the seat housing with a rag. Replace the seat with the new one included in the repair package, using an Allen wrench or seat removal tool.
     
   • 5
     Place the new hot water stem shaft into the valve seat, and start the stem nut in by hand, turning it clockwise. Finish tightening the stem nut with the crescent wrench, but only to a moderate firmness -- do not over-tighten it. Place the handle back over the stem shaft and tap it down until it seats firmly. Replace the handle screw and tighten it with a screwdriver.
     
   • 6
     Turn the hot and cold water supply knobs counterclockwise until they are fully open. Turn the hot water faucet knob to the "On" position and check for leaks.
     

Make sure the hot water is turned back on. Pressure balancing valves won't work if both cold and hot water is not on. Pull shower head off and test to see how it flows out of the shower arm. If good, clear out shower head. Whenever water is turned off for a time, and then turned back on, restricting shower heads and aerators usually get clogged. In the future, always open up a tub spout before turning water back on. This releases the air and other debris most effectively before testing other fixtures in the house.

Either the control board or the motor has gone bad. Here is the diagnostic mode to run to look for the errors.
The diagnostic test is performed by using the Program Knob. To START THE TEST: • On non-digital display models, turn the Program Knob to start position, Drain/Spin. • On digital display models, turn the Program Knob to start position, Touch Up. • Press Pause/Cancel to turn off LEDs. • Within 5 seconds, press and hold the Option and Pause Cancel buttons until LEDs start sequentially chasing, then release buttons. 1. All the LEDs will sequentially light. Pressing a button below a light cluster will light all the LEDs in that cluster at one time to confirm functionality. 2. Turn the program knob (1) click clockwise from the start position. The hot water solenoid will activate and hot water should enter through the detergent compartment. 3. Turn the program knob (2) clicks from the start position. The bleach water solenoid will activate and cold water should enter through the bleach compartment. 4. Turn the program knob (3) clicks from the start position. The bleach and the wash water solenoids will activate and cold water should enter through the softener compartment. 5. Turn the program knob (4) clicks from the start position. The door lock solenoid will activate. 6. Turn the program knob (5) clicks from the start position. The door lock solenoid will deactivate and the loading door can be opened. 7. Turn the program knob (6) clicks from the start position. The washer will fill and tumble. 8. Turn the program knob (7) clicks from the start position. The washer will fill and spin (leakage test). 9. Turn the program knob (8) clicks from the start position. The drain pump and door lock solenoid will activate and the washer will operate in high spin. SAFETY WARNING: If power is removed during this test, the door can be opened. To prevent injury, DO NOT put your hands inside when the tub is rotating. 10. Turn the program knob (9) clicks from the start position. The control will signal the last error code.
Repost the error codes here.

Sounds like you need to prime the water pump. Remove the filter holder, open the steam knob and then press the coffee delivery switch. Wait for water to flow consistently from the steamer and then close the steam knob. Water should then be forced to flow through the goup head (coffee head). If you cannot get water to flow from steamer then the pump may have already been damaged or it may have been faulty from the start. If water will flow through steamer but not for the coffee, then the group head is blocked. Good luck hope this helps and remember that all machines should be primed like this before use.

Deliming

SUGGESTED CLEANING SCHEDULE

Type of Water Cleaning Frequency

Soft water every 80 brew cycles, Hard water every 40 brew cycles

Your espresso maker may be delimed using one quart of white household vinegar. Clean the water tank first, following steps l-5:

1. Make sure the steam control knob is in the center off position and that the plug is disconnected from the electrical outlet.

2. If the machine is cool and the pressure has been released, remove the pressure cap and pour 10 ounces of undiluted white household vinegar into the water tank.

3. Screw on the pressure cap and allow machine to sit overnight with the vinegar solution in the water tank.

4. Remove pressure cap and discard vinegar through the top opening of the espresso maker.

5. Rinse the water tank thoroughly with tap water, repeating this step twice.

To wash internal parts:

Make sure you clean the inside of the water tank first. Remove the pressure cap and pour 10 ounces of fresh white household vinegar into the water tank. Screw the pressure cap back on top of the water tank. Make sure the cap is on tight. Insert the filter holder into the brew head and place the glass decanter with lid on the drip tray. Plug the machine into the electrical outlet and turn the power switch on. An indicator light on the power switch will tell you the machine is on. Place a cup with cold water under the steam nozzle. When vinegar begins to flow into the decanter, insert the nozzle into the water and open the steam nozzle slowly by turning the steam control knob downward. After a few seconds, close the steam nozzle by turning the knob back up to center. This will clean any residue left in the nozzle from frothing milk. When all the vinegar has been pumped into the decanter and the flow has stopped, turn the power switch to the center off position and allow the machine to cool. Repeat steps 1-7 twice using only tap water to rinse any remaining traces of vinegar out of the machine.

Decanter cleaning

1. Pour warm white vinegar in the decanter and let soak for 20 minutes.

2. Discard the vinegar, Wash and rinse the decanter thoroughly using a

soft cloth. Do not use harsh abrasive cleaners.

Unscrew the shower head and check flow without it on. I'm thinking that debris has plugged up the screen, etc in the head.

try replaced gasket in high pressure valve.

the connections are reversed,just change them over and this will fix the problem.

(Button 26 is the right-most one (2 intersecting
ovals.)
From the Manual:
Press the button (26) for at least 5 seconds to
select the descaling operating mode; the LED
emits a fixed light.
• Direct the steam nozzle (14) toward the drip
tray.
• Position a vessel of adequate capacity under
the steam nozzle and turn the hot water knob
anticlockwise (16). The appliance starts an
automatic descaling cycle with pauses preset
by the manufacturer and managed
automatically by the appliance.
• At the end of the cycle, the flow of the
descaling solution is shut off and the 5 buttons
start flashing simultaneously.
• Turn the knob of the hot water nozzle (16)
clockwise to OFF. In this case, also the warning
light (27) flashes.
• Rinse the water tank and fill it with fresh
drinking water.
• Position a vessel of adequate capacity under
the steam nozzle and empty 2/3 of the
contents of the water tank by turning the steam
knob (16) anticlockwise; to shut off the flow,
turn the knob (16) clockwise.
• Let the appliance heat up and empty the
remaining contents of the water tank by turning
the steam knob (16) anticlockwise; to stop the
flow, turn it clockwise.

HTH
dave