Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

taco 503 zone panel

the zone to my indirect hot water heater keeps turning on and off every couple of sec turning the circulator  on and off . changed the cube relay seemed to solve problem for a little while any suggestions on what is causing this.

Comments

  • lchmb
    lchmb Member Posts: 2,997
    aquastat

    Did you check your indirects aquastat? Wiring for lose connections?
  • smitty_6
    smitty_6 Member Posts: 6
    thanks

    jumped out the aqustat found it to be bad replaced it everything working fine now                
This discussion has been closed.