Panasonic 3ton ac

[OkonedoCharles]

Good day everybody!
Panasonic outdoor keeps running and does not stop even while the indoor unit is turned off.

The outdoor only stop when the main power source breaker is switch off.

I'm suspecting the indoor board/ panel.
What could be the problem? Thanks

[frank]

Model numbers might help us to see what system you are talking about

[OkonedoCharles]

The model number...CS-C28FF
thanks!

[Brian_UK]

Probably a power contactor stuck.

[OkonedoCharles]

Thanks!
But the indoor takes the power from the power source,
While the outdoor takes power from the indoor.

[frank]

As Brian says, it is probably a stuck/welded relay. You will need to trace the power from the indoor pcb with a multimeter.

[OkonedoCharles]

Thanks!
I will do just that

[vikky1971]

15077Brian is right. The mag. relay must have stuck in make position, once you tap it, it may start working but later it would again start giving you the problem. Find the picture of the power card, I hope it helps.

[OkonedoCharles]

Thanks a lot Vikky