Comenda Extended Cycle / Heating or Fill Inefficiency

Cycle times are much longer than normal; machine seems to run indefinitely.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Insufficient water temperature rise, Low water pressure causing slow fills, Sensor misreading temperatures, Excessive scale on heating elements

Safety first: Disconnect power before accessing internal components.

Check water temperature: Measure incoming water temperature. If too low, the machine will take longer to heat.
Verify heating: Ensure tank and boiler heaters are operating and reaching set temperatures. Troubleshoot heating circuits if not.
Check water pressure: Confirm adequate mains pressure and that inlet filters are clean.
Descale: If elements are heavily scaled, descale the tank and boiler following Comenda procedures.

Medium 3/5

Tank Heating Element

Check Price on Amazon

We may earn a commission from links on this page.