Janitrol/Janaero Troubleshooter

Model S25

The following are just basic troubleshooting tips. Most problems will be identified using the following steps. For more detailed servicing or overhaul see maintenance and overhaul manual instructions part number 23C37.

  1. Test Equipment needed:
  2. Identifying features of the Janitrol/Janaero Model S25 service heater:
  3. General:
    1. 25,000 BTU heaters
    2. P/N C15C54
  4. Electrical:
  5. Basic requirements for heater operation:
    1. There are five basic requirements for a combustion heater to function.
      1. Electrical power
      2. Ignition
      3. Fuel
      4. Combustion air
      5. Ventilating air
    2. If any of these are absent or out of tolerance the heater will not operate correctly.
  6. F. Trouble Diagnosis: (The following basic troubleshooting steps are in order of ease of inspection and are the most common cause of failure)
    Note: It is suggested that one person operate the heater controls and another person perform the checks at the heater.

View the troubleshooting chart (pdf)

Disclaimer: The following info is to assist our customers. We accept no responsibility for the outcome of the preceding procedures.