Hi - I have a F&P top loader plumbed to laundry tub (hot & cold). 
I can't run any programs using warm/hot water as the machine stops and beeps - it only runs normally on cold water programme. 
The problem is that the flow into the machine from the hot water supply is very poor.  The tub's hot water tap for the washing machine seems to be restricting flow - it has a very small range of "open" and the flow is terrible hence the top loader having a hissyfit.  If I want to do a warm water wash I have to fill the machine using a bucket. 
The hot and cold water pressure in the house is good. 
Can anyone tell me how I can resolve this please ?

Linkback: https://www.plumbers.nz/q-and-a-water-pressure/50/poor-hot-water-flow-to-top-loader/1691/