Sunday, 6 June 2021

Navien 240A suddenly not as hot in internal recirculating mode | Terry Love Plumbing Advice & Remodel DIY & Professional Forum

Works fine with recirculation off, reaches the target temperature. But feels about 20 degrees cooler when I put it in internal recirculating mode. Confirmed the dip switches and valve position.

This started a few weeks ago. Cleaned the water filters. Everything else seems to be in working order. Any ideas?

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