Sunfire sds12sub no sound but all power is on

Try holding the 'tone control' and 'info' buttons and pressing power. This should allow the unit to turn on. See what the front display says at that point. I tshould show some kind of protect code. If the unit turns on and stays on normally after that, then you may have had a temporary problem that was cleared by disconnecting everything. If it turns back off right away, then you will have to get it repaired as something internal has been damaged.

maybe a head gasket

check the power cord for faults at the base and the wall socket. make sure everything is tight.

HI,
first of all select ur sub woofers auto mute (auto power off ) switch to off position.
then connect the mic and calibrate ur system one more time. after calibration select it to on position. u will surely get it work. if need any further assistance feel free to contact through fixya.
ok

My friend bought a Poloroid tv, similiar to yours. The power supply went bad 2 weeks after warranty expired; he had to pay to have a whole new power supply installed - roughly $250. Two weeks later my Toshiba (same age) won't turn on - no lights or anything. Same thing - power supply. Sounds like yours is in the same category. Hopefully you bought the extended warranty.

You need to find the source of the leak. it hasn't overheated yet because you keep catching it and re-filling. From your description, it sounds a lot like a bad water pump seal (part of pump) but without physically looking you can't be sure of that. when the pump seal begins to fail, internal pressure while running often will drive the seal tighter against the shaft stopping the leak. as pressure drops as the engine cools, the seal relaxes and permits seepage.
With time, that will change and it will leak all the time.

Sounds like your relay from your starter or your plug wires might be out. Or your plugs might need to be changed or calibrated right to continue running.

I know this is old and im sure you have it solved by now, but it might be a good idea to check the amp setting of Zone 2. Is it switched to Internal or external? I remember something strange about this amp in that when you change from using the rear surrounds and go to use them in Zone 2, it resets the amp setting or something like that. Hope it helps if you still need it.

I would have to say it's your fan going out, also if the units aren't fixed the the DD should come out and fix it for free since it wasn't done the first time. I would take a look at it but I don't know where in florida you are. I'm in highlands county. If your close enough I could come take a look. If there's clicking coming from your condenser then it's one of two things, the compressor or the fan. hopefully the fan. let me know.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/stephen_171aeeebef53a898