Ideal Underheating / Reduced Output

Hot water temperature is too low even when the Ideal water heater is set to maximum.

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

Partially blocked burner, Low gas pressure, Scaled plate heat exchanger, Faulty DHW thermistor calibration

Safety: Avoid increasing temperature beyond manufacturer recommendations to compensate; this can be unsafe.

Check flow rate: Reduce the flow at the tap to see if temperature increases. Excessive flow can exceed heater capacity.
Clean inlet filters: Ensure cold inlet and heating filters are clean to allow proper heat transfer.
Check gas supply: If other gas appliances are weak, contact your gas supplier.
Service: A professional can clean the burner, check gas rate, and descale the plate heat exchanger to restore output.

Hard 4/5

Plate Heat Exchanger

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