Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
You might want to read ARMY TM 9-6115-643-10. It will answer your questions. I don't own an MEP-804A but reading the TM taught me that:
You need to ground the unit.
a. At temperatures below 40°F (4°C) turn MASTER SWITCH to PREHEAT for 30 seconds.
b. Rotate MASTER SWITCH to START position.
c...