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Question about Laing Thermotech Autocirc Undersink Instant Hot Water Circulating System

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Takes a long time to get cold water. Then it is still luke warm. New house. Unhook it, and you get plenty of cold water. Takes forever to get hot.

Posted by donbohannan on

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Anonymous

Open water heater drain valve or TP valve to see if unit is producing hot water.
Protect yourself from scalding water.

If water heater is not working, then call service technician, or re-post question on fixya with type of water heater, description of water heater and brand, and what you have done so far to repair problem.

If water heater is working, then you probably have crossover problem at recirculation system check-valve or at single-handle faucet. Or both.
Remove check valve and clean with white vinegar; replace defective single-handle faucet cartridge.
Open following links for resources
http://waterheatertimer.org/Crossover.html
http://waterheatertimer.org/Water-heater-recirculation-system.html

Posted on Aug 01, 2011

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