Eaton Cutler-Hammer D5RR3A Relay 319847-401 installing a new air dial

installing a new air dial kit and recalibrating the burner with a combustion analyzer will often resolve the issue

What happens if I replace a 40VA transformer with this 75VA model

A rapid-flash usually indicates a twinning error where the two furnaces are out of phase

Will this ignitor work for all Lochinvar Crest models

Eaton Cutler-Hammer D5RR3A Relay 319847-401 installing a new air dialThe Eaton Cutler Hammer D5RR3A Relay is a reliable, industrial grade general purpose ice cube relay designed for demanding control circuit applications. This 120V AC coil relay features a 3PDT (Triple Pole Double Throw) contact arrangement, though it is frequently utilized in DPDT high amperage switching environments. Built with a robust 11 pin blade base, it ensures secure plug in mounting to standard sockets, minimizing resistance and preventing