First try turning off the machine for 30 minutes. Re-plug. If nothing happens. Disconnect from mains
. Then check your inlet valve. Shut off valve, switch off machine & see if the water comes full flow. Check the fine filters on the machine inlet entry, they could be blocked, clean out. The FH indicates a fill failure and this is usually caused by a bad water valve, flow meter or pressure switch.
One key to determining the cause of the FH error is how fast the error comes up in a cycle. If the error appears within 1 or 2 minutes then the most likely cause will be the water valve or flow meter.
If the error doesn't appear for several minutes then the pressure switch can be the source of the problem. There is a slim tube going up from the filter area to a switch near your control board or panel; it leads to the pressure switch - it should not be blocked or leaky - ie.with holes.
Both water valves must be turned on and working. Even if a cold wash is selected at some point during the fill the hot water valve will be energized and if there is no water then the FH error will show up. Sometimes a consumer will turn the hot water valve off to save energy but you can't turn one valve off on some washers.
Inlet valves can be purchased thru searching this site and fitted by you easily.
Just noted that your machine is a top load; anyways, click if helped.