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    The Astro 30 pump has a slotted screw in it. Do...

    The Astro 30 pump has a slotted screw in it. Do I just turn the screw? My pump looks just like a Grunfos UPS series 100. Do I need to disconnect the power to it prior? Thanks again.
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    I do have an Amtol Extrol expansion tank. It...

    I do have an Amtol Extrol expansion tank. It sits directly under my Sparco powervent. My gauge reads zero pressure and I was wandering if I may have an air bubble in the system and if opening my...
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    I appreciate your response. How do I get...

    I appreciate your response. How do I get pressure up. Could the system need bleeding? If so how do I do that. Again, I appreciate your time. Thanks
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    In floor heat not working

    I have a Bradford White Model M2CTW75T10CN12 with an Armstrong Astro 30 pump and I am not getting any heat. I went to the system and heard the pump vibrating. The pump appears to be installed on the...
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    troubleshooting in floor heat system

    I have a Bradford White Model M2CTW75T10CN12 with an Armstrong Astro 30 pump and I am not getting any heat. I went to the system and heard the pump vibrating. The pump appears to be installed on the...
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