Article reference KA-02105
Hot Water Too Hot
If your hot water feels hotter than expected, the most common cause is that the immersion heater backup switch is turned ON.
What to Do:
- Check the immersion heater backup switch.
- If it is ON, turn it OFF, unless the Zeroth unit is currently displaying a fault message.
Other Reasons:
- Your heat pump is likely to be programmed to raise the hot water temperature to 60°C once a week to prevent Legionella growth. This setting is not adjustable by the end user as it is configured when the system was installed.
Applicable models:
ZHP4-180C, ZHP4-180C-01, ZHP4-180H, ZHP4-180H-01, ZHP6-180C, ZHP6-180C-01, ZHP6-180H, ZHP6-180H-01, ZHP9-180C-01, ZHP9-180H-01