Question about Grundfos Comfort System Recirculator 595916
It sounds like the installation loosened sediment inside pipe.
Remove sink aerator and see if you can flush open the faucet.
Also check if other faucets are receiving hot water from hot-and-cold taps that says if grundfos is pumping hot water from the water heater correctly.
When recirculation pump is running, both hot and cold water lines have hot water.
If other faucets have hot water in both lines, then that tells you the blockage is localized in furthest faucet supply lines.
You may have to dissemble those supply lines and flush the sediment out.
Posted on Dec 30, 2010
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Posted on Jan 02, 2017
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