Question about Dishwashers

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Can i connect a dishwasher to the hot water pipe??

When i took the old dishwasher out, i found that it had been connected to the hot water supply to the kitchen tap. can i connect the new one to this existing connector. it would be alot easier to do this, rather than have to break into the cold supply. thanks

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In my opinion you always connect to the hot water unless there's some compelling reason not to like your dishwasher's manual says to connect to cold. Your dishwasher will heat up whatever water you have connected it to, but since you have a tank of preheated water already sitting in your water heater you should use that.

The "resin in the water softener" example, I think, makes no sense since your dishwasher will heat up the water to something like 160 degrees Fahrenheit no matter if the input is cold or hot...

Posted on May 03, 2009

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I have a solar hot water system so it makes economic and practical sense to have the sun heat the water first instead of using fossil fuels.....(ie coal powered electric) I don't care if the cold rinse is done in hot water cause it doesn't cost me or the planet anything to heat. Only problem, will it wreck my machine?

Posted on Apr 30, 2010

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You can connect to the hot supply but it is better to connect to cold. the reasons are:
if water is too hot it can destroy the resin in the water softener
uses too much hot water and hence uneconomic

Posted on Jul 15, 2008

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Yeah I agree. Connect it to the hot...Even plastic supply lines are rated 90'c at 1 Mpa. A pressure relief valve should be fitted regardless hot or cold. Something like a limit of 700Kpa

Posted on Feb 25, 2010

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Posted on Jan 02, 2017

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Does my Bosch SHU43C06UC/17 dishwasher have a hot water element in it? Our kitchen tap water does not get very hot, and before I hook up the dishwasher I want to make sure it will have water hot enough to...


Hi.
Your dishwasher should never be connected to a hot water tap.
Every dishwasher has its own Heating element. If you connect it to a hot water tap you may eventually damage the inlet valve which has sensitive plastic components in it and may even void your warranty if your installation manual suggests Cold water connection only.
Regards Sam

Oct 06, 2013 | Bosch 24 in. SHU30 Built-in Dishwasher

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Hello,
  • 1 what you'll need
    Electric drill and hole cutting bit
    Screwdrivers
    Pliers
    Adjustable wrench
    Level
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    Dishwasher connection kit - available at your home store (should contain water supply line for dishwasher as well as necessary connectors and compression couplers).
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  • 2Determine that you have access to the hot water supply line, the drainpipe and an electrical connection under the sink. Installing the dishwasher will require extending the hot water supply line to the dishwasher, connecting the dishwasher drain to the drainpipe under the sink, and plugging the dishwasher in. If your home was not plumbed in anticipation of a dishwasher, you will need to change some fittings under the sink to make these connections possible. (See below)
  • 3Read the instruction manual that comes with your new dishwasher. Installing a dishwasher is straightforward but you want to be sure you understand and are comfortable with the necessary steps.
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  • Jul 19, 2011 | Bosch Dishwashers

    1 Answer

    Is it a cold water or hot water fill


    It's your choice.There's only a single supply hose and with most dishwashers that means cold fill only, but as this is a compact basic worktop model the manual supplied suggests that users connect to a hot water supply.

    In real-life situations though, the water drawn from the hot supply often isn't instantly hot so all you do is drain cold or tepid water from the supply pipe and let it get replaced with wasted hot water which then cools in the pipe! If the machine features condenser drying like many dishwashers, then cold water is essential for it to work. A final consideration is that unless your hot water is supplied at mains pressure (such as in a combi-boiler or megaflo system) then the water pressure from a hot water storage tank will not often be high enough and you'll have to use the cold supply.

    Jul 13, 2011 | Bush DW5F 22 in. Dishwasher

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    Water comes into dishwasher cold. why???


    Hello,

    Welcome to FixYa.

    Have you insured the unit is connected to a hot water supply line ? The water will not heat until it start's to circulate and activates the "flow switch" in the Bosch dishwashers.

    If it is connected to a hot water supply, try running the hot water at your sink taps before turning on the dishwasher. If you still do not have hot water, check your hot water heater or supply.

    If it is indeed connected to a cold water supply it will work, just be prepared for very long wash cycles since the Bosch machines will heat the water at a rate of 2F per minute...it could take a long time to reach 155F.

    Let me know what you find out and I'll try to assist you in any manner I can going forward.

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    Macmarkus :)

    Jan 28, 2011 | Bosch 23 in. SHU33A Built-In Dishwasher

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    I want to buy a new GE diswasher but I do not know about water inlet, is it hot water or it could be normal?


    Dishwashers are usually connected to the hot water line under your kitchen sink. Although, a dishwasher has a heating element of its own, connecting it to the hot water side minimizes the amount of time the heating element cycles on and reduces the amount of electricity consumed.

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    Hi I am looking to buy a table top dishwasher, I have no room to plumb into pipes, will I be able to connect to a mixer tap???????


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    Connect your dishwasher to the HOT supply line. The most common method is to connect to the hot water supply line in your kitchen. Before running the dishwasher, it is also a good idea to turn your hot water on to allow the water in the line to heat up. This will reduce the time is takes for the dishwasher to heat the water for the wash cycle and cut down on the cost of electricity.

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    Whirlpool dishwasher Leaking water


    Hello there:
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    If the dishwasher leaks, and you know the problem is not related to tub overfilling, the pump, or inlet valve problems, the plumbing connections may be faulty. Most dishwashers are connected to the water supply with metal pipe fittings, and the leak could be at these fittings. If the fittings are threaded, tighten them with an adjustable wrench. If this doesn't work, chances are the threads are stripped or the fitting is cracked or otherwise damaged. In this case, replace the fitting.
    Most dishwashers discharge used water through a pipe or a hose connected to the drain or garbage disposer under the kitchen sink. If the drain line is made of flexible hosing, it may have cracked from prolonged exposure to hot water. Examine the hose; if it's damaged, replace it. If the hose is leaking at its connections with the disposer or dishwasher, tighten the fittings or clamps at the connections, or replace the clamps. Also check for water leaks around inlet valves, drain valves, and anywhere you see flexible hoses and hose connections. Leaks at clamps can be stopped by tightening or replacing the clamps. Leaks in hoses can be eliminated by replacing the hoses.
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