No power. LED 1 stays on. 2 and 3 will flash upon pressing power.
I’ve found several results on this page for similar problems but with different iMacs. This one has non-removable RAM though so RAM suggestions don’t help. LED 1 never shuts off until I unplug the system. When I press the power button 2 will light up, then 3 will light, and then both will shut off. They will continue doing this until I unplug power. It sounds to me like the logic board failure.
crwdns2934109:0crwdne2934109:0
crwdns2942205:01crwdne2942205:0
Can you give us some background on what happened.
Did you check your power outlet, is it correctly wired and have a proper ground? You'll need to also check your breaker panel's ground connection too! Do you have a surge suppressor or better yet a UPS.
crwdns2934271:0crwdnd2934271:0 Dan crwdne2934271:0