Have a whole house filter but dispenser sometimes works

The technician is correct and you could take a water sample from a normal faucet and send it in to see how high the particulate and turbidity is. Then you can decide about a whole house filter. They can be expensive so get bids.

Sounds like you should buy a water filter to put in your house or wherever line to filter the water. it can be a cheap one with just a cheap paper filter to keep out any sand or settlement especially if you are on a well oh sounds like the valves are getting dirty inside and not closing completely because of debris in the valve.

If you still have the old filter replace the new with the previous. If all works OK check new filter for blockage or manufacturing defect. Usually most units will work with no filter installed.

It is likely that you have not fully assembled the new filter in the location.

The filter can be removed and there should be no leak and the ice maker and water dispenser should work just like before except the water is not filtered. This feature is available for customers who have whole house filters.

Hope this helps?

Sometimes a manual defrost of the whole unit will clear that up. Give it a try

If you need further help, reach me via phone at https://www.6ya.com/expert/gary_9c859f4aa7e5ab10

Sometimes the water freezes in the lines. Try raising the temp to just under freezing, not way under.

Unfortunately, the housing that the water filter fits into is also the housing for the solenoid controlled water valve, and that is the most likely failure item.

The solenoid that controls the water flow could be stuck in the closed position. Check that out along with the switch that powers it.

My Frigidaire PureSource water filter housing wouldn't unscrew either. Even with the supplied plastic "wrench" and later a cloth-covered pipe wrench, it wouldn't budge. Since both my icemaker and my door dispenser stopped dispensing water, and the filter housing in the fridge wouldn't budge, I suspected that the filter was full of frozen water. (Sometimes things on the top shelf of the fridge freeze, so it was obviously too cold.) I used a hair dryer on the water filter housing for a few minutes, and then the water filter unscrewed easily. Sure enough, the whole inside was a block of frozen water.

This would have been such a simple repair, HOWEVER unfortunately it turned out that I wrenched it too hard and broke the inlet valve on the housing. As soon as I thawed out the filter and reassembled, water was pouring out of the top. Took off the big cover at the top ceiling of the fridge and saw my problem.

It's only about a $25 part, but I'd advise that you be careful to only turn, without rocking back and forth, the housing when trying to unscrew. I guess I wiggled it back and forth too much and cracked it.

you try changing the filter?