Brand: AEG
Category: Heating
Document Type: Manual
Language: EN
Manual for U5
Uploaded: April 20, 2026, 7:48 p.m.
Warranty Information
The warranty covers manufacturing or material defects for 24 months for domestic use and 12 months for commercial use.
Operation Summary
The open vented (non-pressurised) appliance maintains a set water temperature. Cold water replenishes as hot water is drawn. It has a temperature selector for adjusting the output temperature and a heat-up indicator. During heating, expansion water may drip from the tap. The appliance is equipped with a high limit safety cut-out to prevent overheating. For safe operation, it must be used with open vented taps and never subjected to water pressure.
Troubleshooting and error codes
| Problem | Cause | Remedy |
|---|---|---|
| The appliance does not supply hot water. | The temperature selector is set to "OFF / frost protection". | Switch the appliance ON by turning the temperature selector. |
| No power at the appliance. | Check the plug / fuses in the distribution board. | Call your qualified contractor. |
| Water can only be drawn at a reduced rate. | The aerator in the tap is scaled up. | Descale / replace the aerator. |
| Loud boiling noises inside the appliance. | The appliance is scaled up. | Call your qualified contractor. |