How do you adjust a temperature control faucet?

I installed a temperature control faucet about 2 months ago. It was working fine but now the hot water is becoming less and less( almost cold ) I know their has to be a way to adjust this thing. Has anybody out there ever worked with one of these things?How do you adjust a temperature control faucet?Remover the handle, behind the handle will be a disk with two arrows, depending on the brand, this will advance it to hotter or colder. If no small children are living in the house, adjust it all the way to hot. If not, buy a thermometer, and check to make sure the water temp, it at 105 degrees maximum per the national plumbing code.

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