J365

[gigic]

I have JACUZZI J 365 hot tub and my display shows ---- "watchdog" I do have power and power box is OK.Main panel looks ok.This happend before but I was allways able to resolve problem with reseting tub on main box until now.

[n1oty]

You did not specify the year of manufacture for your J365. That is important because it had two different controllers, depending on the year of manufacture. Look at your topside. If it has 10 buttons, you have the older, high end controller. If it has half that number of buttons, it is the lower end controller. In approximately 75 percent of the cases, a watchdog error is caused by a failing temp sensor. The other 25 percent of the time, it is caused by a bad board, power problems or even a bad Dallas time chip on the higher end boards.

Technically speaking, the error itself simply means that the board has detected a situation that is hazardous to the equipment. Troubleshooting involves ohming out the temp sensors to see if one is bad, plus removing the sensor plug from the board and plugging the Jacuzzi sensor test plug in its place. The test plug mimics 73 degrees back to the board.

John

I have JACUZZI J 365 hot tub and my display shows ---- "watchdog" I do have power and power box is OK.Main panel looks ok.This happend before but I was allways able to resolve problem with reseting tub on main box until now.

[thecanuck22]

n1oty is spot on. i have had customers shut the main breaker off for 20 mins and it has cleared.Should be warrantable? if not, check the board for bulged capacitors, take it to a electronics shop and have them replaced prolly 1-200$, better than 4-600$ for a new board....