Washer fills slow only in the rinse cycle

If you can see a constant water pressure from the hot and cold, chances are the water solenoid valves are ok.

I would look towards resetting to factory and checking the main control unit.

possible 3 solutions for this problem 1 could be the cold fill solenoid 2 could be brushes in motor 3 could be main pcb

In the rinse cycle it will use cold only to rinse with.
You need to see how fast the water is going into the machine on rinse
Things that can effect slow fill, low water pressure, Faulty cold valve
water hose & valve filters clogged, Kinked hose

When the washer initially fills for the wash, is it only hot water entering the drum? Try switching the water temperature between hot and cold as it fills. If any of them show little or no water getting through, it sounds too easy but check to make sure water supply taps are on, and that the cold/hot fill hoses aren't reversed. Remove the fill hoses and check any of the screen filters for blockage (in the hoses and in the inlet water valve). When the machine stops and waits to fill but all you hear is a hum, it sounds like there is power going to the valve but water is not able to get through it.
Good luck!

Turn off the cold water.
Remove the cold water hose from the machine.
Look inside the cold water inlet on the machine and clean the debris from the screen.
Problem solved.

while the unit is filling in the warm cycle. reach behind and shut off the hot water tap.I bet the water flow stops filling, if so, you would need to change the inlet valve on the machine. You see, in warm, if the cold is not filling, you still hear the hot filling and the unit will advance. The rinse cycles are mostly "cold" only. if the valve is not opening it will not allow it to advance from the rinse section on the board.

Good luck!

Need a model # to get exact part you will need at rinse most washer go straight cold so I would say water inlet valve if humming sound is present

REPLACE YOUR WATER INLET VALVE(HOT,COLD WHERE HOSES ARE)IT'S NOT OPENING ALL THE WAY TO LET THE WATER FILL UP FAST,LET ME KNOW HOW YOU DO-MIKE

I had the same problem with my Kenmore Model 11022956102 washer and first thought that it was the water inlet valves. So I replaced them, but found the problem continued. After about 25 seconds into the rinse cycle the water only trickled in. Checking with a voltage meter I found that I lost 120V at terminals 3 & 5 on the washer temperature controller after 25 seconds. Even though the wiring diagram doesn't show the water temperature control board, since it's full of resisters and capacitors, I figured it was the most likely problem. So I ordered a remanufactured board from Parts Simple (#3407125), received and installed it. The 17 year old washer is now working fine once again. I hope this helps someone with the same problem. /s/ Paul

Check each temperature during initial wash fill. Set to hot water, is hot water coming out? Set to cold water, is cold water coming out? The rinse cycle is cold only. If cold water is not working machine will just stop at rinse.

If cold water not working:
Disconnect cold water hose from machine. Inspect the filter screen on the cold water connection. DO NOT REMOVE SCREEN. If full of debris, use a spray bottle with a hard spray to remove debris. If unable to remove or cold is still not working, replace valve.