Fisher and Paykel Smartdrive 053 Hot Water filling very slowly

Hi Greg. If I may be candid here? As a technician with years of daily experience repairing appliances, I would advise you and anyone else who happens across this post to take my advice and NEVER, EVER try and "clean" or take apart a water inlet valve in order to try to save a few bucks, When it works, sure, you feel good about how you've saved some money. The problem is, sometimes tiny particles get past the diaphragm and you can end up with a major flood situation if it sticks open. I've seen this too many times and I am here to tell you that damage that can be done to a home, especially one with an up-stairs laundry room with no floor drain can run into the thousands of dollars, all because somebody wanted to save the cost of a water inlet valve.

Just replace the valve. In fact, on machines where there are separate hot and cold, if we go out on a job where one is faulty, I tell the customer we should change them both as a set.

Your question is posted under the IWL12 series, so the part number for the hot water inlet valve is a 420237P. You can get them here:

http://fisherpaykelparts.net/index.php?categoryid=111&productid=34

I hope my candor is not taken wrong, but don't go the cheapo route here, this can turn into a HUGE mess, you can't exaggerate this point. I have seen where people dismiss this advice and end up with a caved-in celing in the room below the laundry after the solenoid sticks open and they happen to be out shopping or walking the dog as the washer keeps filling and filling and filling and... well, I think I made my point. :)