Grundfos circulating pump airlock damage?


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Old 09-15-06, 04:28 PM
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Grundfos circulating pump airlock damage?

My Grundfos circulating pump had an airlock in it yesterday after I flushed the water heater. It ran for about 4 hours without water circulating through it. I unplugged it when I realized what was happening. Later, after the air worked through the system, I restarted it and it worked fine. I'm concerned that I may have caused some interior damage to it, however. What is the life of these pumps? Mine is not on a timer and runs 24/7, and has been for about three years.
 
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Old 09-16-06, 07:47 AM
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Circulator

I've seen these pumps run for 10+ years. If once you got the air out the circulator runs fine, I would not worry about it.
 
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Old 09-18-06, 08:14 AM
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Thanks Grady; it's still working fine.
 
 

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