[Elecraft] K3 SSB problem

[Troy,w6hv]

My K3 wont transmit on SSB. It would when first purchased (recently, assembled, used from friend). I’ve been using it on CW but wanted to check into a SSB net. I’m very new at using the K3 so hoping for op err. Been through the manual and settings and can’t figure it out. An external PEP wattmeter shows an occasional 1-2 watt jump at first keying the XMIT then nothing. Still works fine on CW. Any guidance would be appreciated. The latest firmware is installed.

73,
Troy, W6HV