Just installed line to refrigerator for ice and water dispenser. After hook up lost water pressure to both hot and cold water through faucet. Also low water pressure to ice maker (making hollow ice) and water dispenser. Have checked the faucet for blockage and have unhooked ice make and still no water pressure.

If it is only on the kitchen line its restricted somewhere, likely from debris knocked loose when installing the ice maker. I suspect you might hjave two problems, lets start by removing the aerator on the sink faucet, any change?

We have already checked the aerator on faucet for debris and no change in water pressure.

Did you shut off your main incoming water valve when you did the install? There arent many things that will affect both hot and cold volume

The next thing I would do is climb under the cabinet and disconnect the hoses from the faucet (shut off water). Once you have the hoses disconnected you want to direct them into a bucket or deep bowl and turn the shut offs on...see if you have good or poor flow. If you have poor water flow out of the hoses, the guts to the shutoff will need to be removed and washers replaced (main water shut off here). If you have good water flow out of the hoses then the issue is up in the faucet where the cartridge will need to be removed and the faucet/cartridge cleared of any sediment.

Try that and then post back...

Mark

The next thing I would do is climb under the cabinet and disconnect the hoses from the faucet (shut off water). Once you have the hoses disconnected you want to direct them into a bucket or deep bowl and turn the shut offs on...see if you have good or poor flow. If you have poor water flow out of the hoses, the guts to the shutoff will need to be removed and washers replaced (main water shut off here). If you have good water flow out of the hoses then the issue is up in the faucet where the cartridge will need to be removed and the faucet/cartridge cleared of any sediment.

Try that and then post back...

Mark

Thanks Mark for the suggestions. We did turn off the water at the main before the ice maker line install. We will try your suggestions (it will be Saturday before we can do them) and we will post back.

Good luck!