When troubleshooting a three-zone hydronic heating system, the technician observes that two zones are operating correctly while the third zone is not getting warm during a call for heat. What is the most likely problem?

Question

Quizplus · Accepted Answer

If two zones are operating correctly, then it is unlikely that the circulator motor or burner are the issue. However, if the third zone is not getting warm during a call for heat, it is most likely a problem with the zone valve not opening to allow hot water to flow through that zone.

When Troubleshooting a Three-Zone Hydronic Heating System, the Technician Observes