Ecodan HW temp setting set itself to 40C - Air Source Heat Pumps (ASHPs) https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-hw-temp-setting-set-itself-to-40c/ Questions and discussions about renewable heating and heat pumps en-GB Tue, 06 Oct 2026 15:01:00 +0000 wpForo 60 Ecodan HW temp setting set itself to 40C https://renewableheatinghub.co.uk/forums/renewable-heating-air-source-heap-pumps-ashps/ecodan-hw-temp-setting-set-itself-to-40c/#post-52206 Mon, 10 Nov 2025 10:27:36 +0000 This morning I noticed that the HW was lukewarm and MELcloud told me it was 37C.  I tried to boost the temp with both the Mixergy app and MELcloud but nothing much changed.

Checked the HW set temp on the Ecodan wall display and it was set to 40C rather than 52C !

Very strange - it was fine yesterday.  Has anyone else with an Ecodan seen similar odd behaviour recently?

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