The line that connect's to the sprayer hose was bent during installation. Is this why the water pressure seems low?

Kathryn, the kink could restrict flow of water because there is so much less room. To remove the kink you could try pressing the two sides of the kink BUT that is risky. Have a replacement ready in case you damage it further. DO ALL THIS WITH WATER SHUT OFF. If you manage to straighten the kink even a bit more, water will flow better.GL

It is possible you have this error

First 3

programme

indicators

flashing

E5 Water tap not turned on.

Insufficient water supply pressure.

Water supply hose is crimped or

bent.

Drain hose is too low.

Ensure the water is connected

and turned on.

Check household water pressure.

Check hose and straighten if

needed.

Ensure that drain hose is

connected in accordance with the
'Installation instructions'.
For details refer user guide.

It sounds like you have already checked the obvious places at the cartridge and the filter screen at the end of the hose. If you have good flow through the hose with out the sprayer attached I would suggest the blockadge was in the sprayer. If you look into the hand sprayer from the hose connection you will see a yellow ring with a white plastic flap in the middle. This is the first check valve as well as the flow restriction device. This little assembly can be removed [for cleaning] by pushing in on the white plastic part and hooking the yellow ring and simply pulling it straight back and out of the handsprayer. A cork screw or dental pick works well for this. Once removed you will need to hold this little assembly over something other than the sink and unsnap the grey end from the yellow housing. You will most likely find some debris in this little grey end around the spring at the flow restriction device. This is common after a water heater replacement due to the amount of debris stirred up during the flushing process. Once cleaned you will need to reassemble and reinstall the check valve assembly for proper function of the unit. If you need any further help feel free to contact me at Hansgrohe. 1-800-334-0455. Press 2 for tech and ask for David Scarborough. I'll be happy to help.

I had the same problem. Turned out to be the hose clamp was loose and it was sucking air. I did not find the problem until I connected the garden hose adapter and pressurized the line. After the line was pressurize water was sqirting out at the from the hose connection on the right angle connected. Tighted the clamp and it primed without issue.

I had the same issue with an American Standard faucet that I installed new 6 months ago. The diverter can be the issue if you have a sprayer attachment. Try unscrewing the sprayer head from the hose it's attached to. Now run the water full pressure with the hose pointed into the sink, obviously :~). After running the water for about 1 minute, connect the sprayer head back onto the hose, make certain the flat rubber washer and ring gaskets are seated in their grooves properly, and tighten until you have no water leaking from the sprayer head/hose connection. Now try the water through the faucet. If the problem was a temporary diverter issue, your pressure should be fine now. Good luck

Check for an inline filter on the water hose connection, the low pressure side. Depending on your water quality and if any spiders made homes inside your hose, they can get clogged pretty easily.

hello, you may have a air pocket in the line try shutting of the water supply and then sqeeze the handle and slowly turn the water supply back on with the hose handle squeezed on till the air is forced out, hope this helps

it souns like a factory flaw in the piping or whoever hooked it up, over bent or kinked the line

although it is possible that the spray head has gone bad, it is more likely that the diverter mechanism inside the kitchen faucet needs replaced. When this part is defective, it allows full pressure from the faucet to go to sprayer head even though the sprayer is not triggered. The sprayer is not designed to handle full pressure when it is not spraying.

It's neither you nor an unusual problem. It's the faucet. We just installed a similar 2 handle $168 Pfister and had numerous similar and other problems. After 2 hours of expletive laden sweat, bruises, and continuous dumbfoundedness over the incredibly poor design of the cheap plastic pipe fittings and the poor english instructions, we turned it on and immediately had many problems.
1. It jerks the pipes every time you turn it on.
2. It sputters with irregular flow.
3. Pressure is 50% of our corroded 18 year old faucet.
4. When you turn it off, it drips for 10 seconds.
5. The flow out the spout is uneven and dribbles.

These problems are from its chinsy fittings and poor piping design.

1. The fittings are unstable plastic snaps held together only by pressure, O-rings, and cotter pins. No screw fittings at all. This is also dangerous since simply pulling the hoses and pipes such as when stuffing things under the sink could break the seals and cause a flood.

2. The flow diverter block that mixes the hot/cold and side feeds the separate sprayer is nothing more than a small block of plastic with very tiny holes infeeding the hot/cold lines and outfeeding the spout and sprayer. In other wrods, a 2 in, 2 out distributor.

3. The hoses that feed the hot/cold to the diverter take their feed from circular collar that seal the water with plastic-on-plastic pressure, held in place by more cotter pins. The holes in these collars that feed the hoses that lead to the diverter block in the center are also very small so they reduce pressure drastically and cause intermittent and sporatic flow.

4. Due to the very tiny holes in the diverter block, the feed collars, and the spray hose at the diverter block, any sediment or minerals in the water will soon render the faucet completely dysfunctional.

5. The design of the unit makes uninstalling very difficult. The sprayer feeder hose, for example, is made to push in without threads or pins so it has to be ripped out. The large thin ring washers with no gripping edges that hold the hot/cold faucet stems were very difficult to tighten and will be twice as hard to remove. The plain old wind nut style nylon washer-nuts used on l\more utilitarian econoical units are far superior. Shame on Pfister.

Answer: Due to all the above, the answer to your problem, unfortuntely, is the same as for us. To wit: There is no solution other than switching to another brand that doesn't place all its design effort in its looks at the expense of proper function. We feel ripped off. There is nothing uglier than a pig with lipstick.

Bottom line: These Pfister units are all show and no go. Return them if possible and choose another brand whose piping is hopefully more evolved and rugged rather than this plastic toy with only good looks.