Table 4-2. UNIT TROUBLESHOOTING - continued.
NO COMBUSTION IN HEAT AUTO MODE.
Electrical high voltage cannot be seen, but it can kill you. Electricity is unlike most other
dangerous things you can come in contact with because it gives no warning and no symptoms
to be wary of. Its effect is immediate. It can kill you, render you unconscious, or severely burn
you. To ensure your safety and that of other maintenance personnel, always observe the
DO NOT perform maintenance on electrical equipment unless all power is removed.
BE CERTAIN there is someone assisting you who can remove power immediately.
ALWAYS place POWER OFF warning tags on power supply switches so that no one will
apply power while you are performing maintenance.
FOR ARTIFICIAL RESPIRATION, REFER TO FM 21-11.