Samsung WA80v3 connected to cold water supply. Does it heat water during wash cycle or does it have to be connected to hot water supply if heat is required?

Check drain pump for obstructions. Make sure hose and valve screens are clear. Make sure hot and cold lines aren’t reversed.

the hot selection only tells the machine to turn on the house hot water to the machine
if you have it on warm , then both taps will be working
if you want a really hot water wash , there will be an element in the tub to bring it to temp
naturally an energy saver will not waste money heating hot water

If you want to connect up a washing machine that uses hot and cold water but you only have a cold water supply (such as in a basement or garage) you can use a Y Piece connector to connect the hot and cold fill hoses to a single cold water supply (external link to 4Washerhelp spares).
The washing machine will then work OK. Simply screw the Y-Piece onto the tap, and then screw the hot and cold fill hoses to the Y-piece and connect the other end of the fill hoses to the washing machine. (You may also be able to buy this part from a DIY store like B&Q)
If you don't connect a water supply to the hot valve (and simply connect the cold water hose to the cold valve leaving the hot valve with nothing connected to it) then some wash programs may not work as some programmes only fill with hot water. However, some washing machines will work OK with only the cold fill hose connected. You can always try it and see. The worse that will happen is the washer could either stick on the odd wash programme or may abort on some. If you do this though it's possible for water to drip out of the hot valve on some machines during fill. It's best to use a y-piece if possible.
The fact that you have connected cold water to the hot valve is irrelevant, the washing machine will not know any different and will just heat the water up to the correct temperature. The washing machine may use slightly more electricity but if it's less than 10 years old it shouldn't be significant unless you use a lot of 60 or 90 degree washes. On 40 degree washes, manufacturers argue it's more efficient to fill with cold water only and slowly heat up the water to 40 degrees.

Hi -
I can't see how any installation problem would cause this - if the dishes are still wet at the end of the cycle, you'll probably find the water isn't heating during the wash cycle. The dishwasher uses steam to heat the washing compartment and dry the dishes. It would appear that the dishwasher isn't heating water internally.
Even if the washer was accidentally connected to the cold water supply ** (see note), this shouldn't happen as regardless of the water supply temperature, the washer should still heat the water to the correct temperature internally.
** UK dishwashers should be connected to the cold water supply. For US installations, dishwashers are commonly connected to the hot water supply. For other locations, please consult your installation instructions.
I suggest you start a regular wash cycle and leave it to run for 10-15 minutes. Then open the door and test the temperature of the water in the base of the washer by hand. The water should be hot and there should be steam present in the washer when you open the door.
If the water is cold or only warm, the water isn't being heated internally or isn't heating to the correct temperature, in which case you should contact the retailer or Bosch Service immediately for a replacement. Do not accept an offer of repair on a brand new washer!
Additionally, do not attempt to repair the dishwasher yourself when under warrantly as this will invalidate the warranty.
Hope this helps. If you need further assistance, please let me know your location and the model number of the washer. This should be laser-etched into the top of the door if you can't find it on any of your paperwork.
Regards, BElectric

Hi from retired Englishman in France (it's 21:29!),

If your washer has 2 pipes for feeding water then one is for hot and the other is for cold naturally.
All washing machines have a water heating element in them- in case any hot water supply is not hot enough for its wash.
If you only have a cold tap you will need to purchase a 'Y' connector. This screws onto the cold tap supply (single end) and the hot and cold feed pipes connected to the washer screw onto the other two ends. The machine will now be fooled into thinking it has two separate feeds!
The machine opens the valve for the 'hot' water supply (which of course is cold) and the heats it up to the required temperature for the wash cycle. Afterwards, when the machine requires cold water for rinsing, it opens up the 'cold' supply (which is the same supply as for the hot water!) and is happy.

Hope this answers your question.

John C

go to appliancerepairplanet.vstore.ca for a suppot

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.

Generally speaking, dishwashers don't heat cold water on their own. Be sure the dishwasher is connected to a hot water supply and that hot water is available to the dishwasher at the START of the cycle.

Often it takes hot water several seconds for house plumbing to deliver hot water to an outlet. If the dishwasher is connected to the kitchen hot water supply, run the water in the sink until the water runs hot before you start the dishwasher.

Dishwashers often have heaters to heat the water even hotter than most home water heaters, but they are not intended to heat cool or cold water. You MUST furnish hot water to the dishwasher from the time the cycle is started.

I've seen houses that take so long for hot water to reach a faucet, the dishwasher is already full (of cold water) before the first drop of hot water reaches it.

Good luck. Hope this helps.

check your water supply at the washer tap and your problem is fixed as the machine is taking so long because its heating cold water up

Most washers require both hot and cold supply. If it has two hose fittings on the back, then you need both hot and cold. I've only seen Asko washers that need just the cold. Even if your washer has a water heat option, it will only heat during a portion of the cycle if the option is selected, it is not a substitute for the hot water supply.