What to do if Dr.coffee M12 Coffee Maker shows Water Supply Error?
- AAnthony ReedAug 18, 2025
If your Dr.coffee Coffee Maker displays a 'Water Supply Error' after attempting to fill water three times due to a perceived lack of water, you should first ensure the water supply is functioning correctly and then restart the machine. Also, verify that the water inlet pipe connector and O-ring are properly installed. Clean the inlet of the tank or tap water source, and ensure the tank is correctly fixed and pushed all the way in. If the problem persists, clean the strainer using Brewer Deep Clean tablets or by disassembling it. As a last resort, consider replacing the pump or flow meter.


