I just installed 2 new GE-GXWH40L filters installed on each side of my new GE water softner. I can not get water to go through the filter. Works fine in bypass. I triple checked the flow direction and it is fine. I removed the filter certrige and no help. The water runs in fine but once its in full filter the water flow will stop completly. I have 60 psi coming in.

http://waterheatertimer.org/Review-GE-Heat-Pump-water-heater.html#condensate
Call GE
Gene
h

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Same thing happened to my GE Hybrid Geospring Water Heater. Luckily, I bought the extended service plan from Lowes. The problem is a leaking evaporator coil in the heat pump (top portion) of the water heater. Believe it or not, the evaporator coil may be freezing up due to low refrigerant levels, which triggers the filter alarm. GE knows all about this problem, and it is covered by the 10 year warranty FOR PARTS. Labor is not covered, even though this is a big defect. Unless you bought the extended warranty... You will need an HVAC service tech to fix this problem, preferably one who works for GE Appliance services. Last, but not least, owners need to report this to the Consumer Product Safety Commission (CPSC.GOV), as in my opinion A RECALL IS IN ORDER HERE. After all, the thought that 410A refrigerant is leaking into my home (my water heater is in our multi-purpose room) is ANYTHING BUT SAFE!

I think the part number listed is for the filter only.

Hi Installed incorectly...You have gravity by-passing (flow) into the cold water pipe.Maybe have a check valve installed to stop flow during stand-by time. thanks

Filters always reduce pressure.
You can add a pressure tank between filter and tankless.
Tankless are sometimes like bowling on a ship.

Add a comment saying how you fixed problem.

Fix most tankless problems yourself, same day, all brands for $330.
http://waterheatertimer.org/How-to-install-gas-water-heater.html

Absolutely feel obligated to upvote the free help.
Or take advantage of fixya paid help.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Check the micron rating on the filter. A typical filter will be 30-50 micron. If the new filters are a finer micron 5-10 these will reduce the water pressure significantly and plug up much faster. Also note if you have more sediment occurring. If on a well, hook a hose up to the drain at the well tank and flush the tank out to a floor drain, take note of any sediment, let the well kick on several times to flush completely.
RJ

If you have GATE valves on either side of the filter make sure the have opened all the way. They can become unscrewed and although it seems like it opened they gate can be almost closed. If the outside spigots are on hard water try the pressure there.
Water filters for pre-filter housings come in different micron ratings. They can be anywhere from .5 micron on up to 100 micron. The smaller the number the finer particulates it filters out and the faster it will plug up. Generally most filters used for residential households are 5 micron to 50 micron rating and the most common used are 10,30 or 50 micron. Try a 30 or 50 micron filter to see if it helps. But remember the larger the micron rating the more particulates pass through.
If there is a lot of sediment coming the well and building up in the bottom of the pre-filtet housing you may want to flush the well or consider having the well inspected by a well company. You could have a pinhole in the drop pipe that is letting sand in.
Run one of the outside spigots in to a clean white bucket, let the pump cycle several times and inspect for sediment in bucket, let it settle for about 20 minutes to see if excess sediment is coming from well. Have your water tested to see if the water chemistry has changed also.
RJ

Many times fines from these filters become dislodged and plug up the filter housing. If you have the bypass plug for the filter, install it and run a couple gallons of water through fridge to flush the system completely. The install the filter again. Make sure none of the water lines feeding fridge are pinched or kinked and valve is on all the way.
RJ

These replacement filters (GXRLQR) are FLAWED straight out of the factory. The problem is in the 2 little "teeth" nubs that stick up near the center circle of the filter. When the filter is twisted and inserted, these teeth push up on a tiny black spring loaded valve in the body of the filter, alowing water to pass through up and out the spigot. The flaw is that the "nubs" are too short and do not push open the spring valve far enough, reducing flow to a semi-trickle, even with a brand new filter. GE seems to think this is not a problem.

Solution=stick a $0.25 garden hose rubber washer in the top of the filter and screw it in. You may have to try a few times to get it to work and seat properly. When it works, you'll immediately get a nice super flow of water. Better than upgrading to a $200 filter system recommended by GE...

It sounds like there is quite a bit of sediment in the water. The filter you are using may be a very fine micron 5-10. Try using a 30-50 micron filter.
RJ