NO heat but have hot water for my Navien Combi


Old 10-26-19, 06:54 AM
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NO heat but have hot water for my Navien Combi

I have hot water but no heat. I replaced the Taco 007 circular pump.However,the pipe going up to the unit is cold. Any suggestion?
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Old 10-26-19, 07:13 AM
Join Date: Oct 2016
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Is your boiler also responsible for domestic hot water? What is the boiler temperature and pressure? Have you bled out the system? What was wrong with the old pump that required replacement?

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