Where can I find a replacement fan for a panasonic sa-ht940

SOURCE: Panasonic SA-HT940

F61 is a problem with the output amplifier pac. It is the equivalent of "protect" mode. The output pac needs to be replaced. I'll look up the part number for you.
Dan

SOURCE: Panasonic home theater SA-HT940

I have an SA-PT960 that came up with the same error.
I unplugged it and plugged it back in after 30 seconds.
Seemed to solve the problem.

SOURCE: where to buy Panasonic SA-HT940 fan

You can purchase it here:

https://www.encompassparts.com/webwiz/wwiz.asp?wwizmstr=WEB.SEE&partnumber=6703015&smodel=SAHT940

Hope this helps,

Dan

SOURCE: panasonic sa-ht940 error f61

F61 usually means the amp has detected a short or a severe microprocessor error.

Generally speaking, an amp protects itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.

Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.

Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.