Flame roll-out

Flame rollout switches are mounted around your burners. They exist to sense when/if the flame were ever to pose a risk to the homeowner.

These are usually bimetal switches that warp when heated to break the heat cycle when they sense a flame rollout situation. They’re traditionally manually reset by pressing the button in the middle, although some use a heat-activated fuse which would mean you’d need to replace the whole part if it were ever to sense rollout.

A few common causes of a tripped flame roll-out limit are:

  • Blocked exhaust
  • Blocked combustion air
  • Plugged heat exchanger
  • Cracked heat exchanger

Leave a Reply

Your email address will not be published. Required fields are marked *