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    HEATDIV's Avatar
    HEATDIV Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 8, 2010, 05:06 PM
    Why do baseboard heaters make a pinging noise
    When my thermostat calls for heat it turns on my circulator pump (hot water system 3 zone) the middle floor zone when it enters the first section of the convector pings very bad, this goes on for a few seconds.

    As it travels through the system it comes to the second set of convectors on the same loop in another room and these convectors also ping for a few seconds but it stops at this point and none of the other rooms (3) ping...

    I tried lowering the head pressure (3 floors, separate zones) tried throttling the valves (supply and return) and they still ping... ANY SUGGESTIONS
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Jan 8, 2010, 05:42 PM
    Make sure all the air is eliminated from the system.
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