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topsheetisamust t1_j2doqah wrote

It’s on its own zone. So a plumber is who I should call?

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blue_black_nightwing t1_j2dtapu wrote

Yes, I'd call a plumber if it were my house.

You're looking at likely one or more of 3 issues:

  • Air in the line
  • Bad thermostat
  • Circulator pump issue

Before you call, check your breaker panel. If nothing is tripped, check your circulator pumps, see if maybe they have a shutoff valve or switch and verify they are on.

Anything more than that isn't DIY unless you're familiar with plumbing.

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