60015 HI LIMIT SENSOR 80C HEAT EXCHANGER HSU AND MHU FURNACES

60015 High Limit Sensor for the heat exchanger combustion chamber for Mr. Heater and Heatstar Garage/Shop Heaters manufactured by Enerco.

Service note:
Replace when you are receiving the following systems from your control Board.

4 Flashes= High limit Switch 60015 or Rollout switch 60022 is in the open condition.

The Flame Rollout and High Limit switch are located on the burner box top and behind the ignition control board.

These are Normally Closed switches and will opens on a High Temperature or Over temperature rise.

Check for adequate combustion air on the blower motor by cleaning out vacuum hose port with a small drill bit before manually resetting switch or replacing these switch.