Many people believe the laundry machine isn’t heating up water when they can't feel any hot water through the door. It is not true, or at least not always. Even the rarest faults happen sometimes, though, so here’s what you can do if your washing machine fails to heat the water.
No heating error code
All modern laundry machines monitor the water temperature, and if it does not rise a certain amount within a pre-defined time then it should flag a fault. So, if the heater isn't working, then the program should abort and produce an error code.
On an older washing machine the symptoms should be that it carries on washing indefinitely. And even a few modern washing machines can develop faults that cause the washer to stick mid cycle and wash forever without producing an error code even though they are supposed to. If you suspect something like that, call a repair man. It is not a DIY job.
I can’t feel any hot water through the door while washing my laundry
A common misbelief that there must be something wrong. Not necessarily, because:
The water is only hot inside the washing machine for a small amount of time during a wash
Many washing machine doors also have an outer plastic insulating cover so it's sometimes hard to feel any hot water
Modern washing machines put so little water in the wash that hardly any warm water splashes on the door glass
All in all, not feeling any hot water through the door doesn’t necessarily mean there is something wrong with the heating, especially when the appliance otherwise seems to work OK and the laundry comes out clean thanks to Ariel detergent and your washing machine. So there is no reason to be alarmed too soon!
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How to find out why the washing machine is not heating up the water
Many people believe the laundry machine isn’t heating up water when they can't feel any hot water through the door.