Is the feed pipe a hot or cold feed?

Dish washers only use water supplied from the hot water side of the pipes under the cabinet or sink, so if you installed the dishwasher yourself, be sure that you ran your inlet water line and connected it to the hot water side, and not the cold water side. The dish washer has heating elements inside the machine to dry the dishes, not heat the water. If this is hooked up correctly and you are still getting cold water to heat the dishes, the problem may be that the unit is too far from the hot water tank. In that case, you may need an auxiliary hot water tank installed near the dishwasher under the cabinet. They make small tanks for such purposes.

You can hook it up like that but not sure how clean the dishes will get without hot water.

Hi,
Probably because it is hooked up wrong...

The water feeding it should be hot water... meaning it should be hooked into you hot water piping, not the cold water...

The dishwasher will keep hot water hot but it is not powerful enough to heat the cold water up...

heatman101

First off, you need a hot water feed line for your dishwasher, not cold water

Secondly, if you have a garbage disposal installed on your sink you can connect the dishwasher drain hose to the side port on the garbage disposal. That's what that little port is for anyway. If you do have a garbage disposal and hook the dishwasher hose to it then make sure you take a hammer and screw driver and knock out the little plastic plug that's inside the garbage disposal port before hooking up the hose to it, if you don't you'll flood your kitchen.

If you don't have a garbage disposal on your sink, then you're going to have to replace a piece of your sink's drain piping with a wye (Y) tailpiece. The tailpiece has a small branch that comes off it to where you can connect the dishwasher drain hose.

Regardless of which way you hook up the drainage and water lines, make sure you test out the work you did by running the dishwasher and keeping an eye on it. I can't tell you the number of times i've seen people hook up stuff like this and not test it and then when they go to use the dishwasher it floods the kitchen..... usually when people are sleeping at night. Test your work.

Yes it may take a little longer to process a cycle but yes all new machines are cold feed only now.

There is too much pressure on the cold feed, reduce the pressure on the cold by partly closing off the tap on the cold.
Or ensure the hot feed is fully open and not blocked, check if there are filters inline - remove the feed pipes at the washer end and look into the inlet valves - clear if blocked.
The inlet valve is common to hot and cold water with only a small pipe to fill the machine, the cold water is being forced back up the hot water pipe due to the pressure you can feel the pipe cool down after running hot then go to warm, if hot water is flowing the pipe will stay hot, if not then cold is going up the hot pipe.

Could be something called water hammer which is a pipe issue. You can install/have installed a water hammer arrestor which is a small pipe extension that stops that.

The water connection is the smaller of the two and generally near the front of the machine, usually a threaded fitting on a electric solenoid will need a pipe to compression 90 fitting if its not already installed, it needs to be hooked to the hot water and that can be found on the left side going up to the sink faucet to be sure run some hot water and the side that gets warm is the correct one, you will need to turn off the water and install a T to connect the dishwasher if an unused shut off is not already there for the dishwasher. The drain line takes a hose and clamp and will hook into your drain iether through a dishwaser t or the disposal if you have one has a connection for it.

Dishwashers normally are hot or cold feed.
My wife runs water at the sink to get it hot going in before turning on the dishwasher.
You can use either cold or hot water.
We have ours hooked up to the hot water side.
They work better hooked up to the hot water.

HOT