Fisher and Paykel 603 diagnostic problem

Hi guys,
Great forum this so thanks in advance.

My problem is with a Fisher and Paykel 603 Smartdrive. The problem is to do with filling up with water. The machine stops and beebs with the hot and cold lights flashing. I have read that is because the water is not coming in quickly enough.

I have tried to get the error code by pressing wash temp down and power. I get all the lights for a sec but I get no beeps and then water level high and low lit up. So I can’t find the last error code.

The valves don’t seem to open very well as it takes ages to fill and I always manually fill it up as it takes so long.

The hoses into machine are fine and the guaze looks unblocked but I havn’t opened anything else up.
Any help appreciated

Matt