Some users are reporting that their Bosch dishwasher is not heating water.
If you are also in the same boat, try the troubleshooting methods in this guide.
I am confident that if you follow each of these solutions, one of them will work for you.
Bosch dishwasher not Heating Water
If your Bosch dishwasher is not heating water, then first turn off and unplug your dishwasher and then inspect its heating element. Check its resistance with a multimeter; it should be high. If it is low, then most probably, it has gone bad. If that is the case, you will need to replace it.
If your dishwasher is under warranty, the easiest solution would be to contact Bosch customer support for a replacement. Unfortunately, in most cases, opening your dishwasher will void its warranty.
However, if your dishwasher warranty period has already passed, and you are comfortable with troubleshooting it yourself, then try the below methods:
Regulate Water Temperature
The heating temperature of the dishwasher also depends on the water going into the dishwasher. However, some new models of dishwashers come with built-in heaters.
If your dishwasher requires hot water on inlet, ensure the average water temperature going to your dishwasher is around 120’F or 48 degrees Celsius.
If you have accidentally attached the hose of the dishwasher to cold water, it might not be able to heat the water to its operating temperature. To fix it, drain the cold water from your dishwasher and then attach its hose to hot water outlet.
In most cases, your Bosch dishwasher will not start when its connected to cold water.
Check Dishwasher Thermostat
The faulty thermostat on your Bosch dishwasher will turn off the dishwasher at the wrong temperature. First, unplug your dishwasher from the power outlet to check the thermostat.
I’d recommend that you call a certified technician for help.
However, if you are an experienced technician and have prior experience of repairing electrical appliances, only then proceed with inspecting the dishwasher thermostat.
If your Bosch dishwasher is not heating water, don’t panic, and try the following troubleshooting methods to fix it:
- Check heating element
- Regulate inlet water temperature
- Check your dishwasher thermostat
If you still have issues with your Bosch dishwasher, contact Bosch support or call them at 1-800-944-2904.