3 FLASHING DOTS : FLO Condition

Pierre-Alexandre Morin explains the meaning of the 3 flashing dots.
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[@martinhamel1910]

UPDATE for everyone who faces this problem........READ this carefully..... the pressure switch is almost all the time the problem, here why;
1- When you start (breaker) your spa AFTER refilling it with a new water; DON'T overload it keep the level normal or a little bit below.
2- When you refill it with MORE water than usual, the Pressure into the water pipes WILL be HIGHER than 2 psi
3- When the pressure switch is exposed to more than 2 psi it will close it circuit BEFORE starting the pump !!
4- IF you start the hot tub with a closed pressure switch BEFORE the pump starts.....the computer (board) will detect a higher pressure that is NOT supposed to be there and will TRIGGER the 3 dots = NO HEAT
This is what we found yesterday.... it happened to me twice and each time just before winter when I changed my water for this period.....each time I went to my specialist saying does not work...........EACH time twice when he plugged it......the spa pack was working PERFECTLY......and 30 min before........was not.........this is why we start our brainstorming
DONT bypass the pressure switch by connecting the 2 wires.......when you will restart your spa the computer will understand that the pressure was already high (more than or equal to 2 psi) and won't solve your problem... DON't Counterclockwise (left) your pressure switch........you will close the circuit below the 2 psi and face the same situation.......
Voilà From a guy in Canada......

[@tranquannien5596]

hi.can you help me for my spa i have a spa s-class with 2 pump .pump no.1 is working,pump no.2 is not working,and i have 3 flash doc.and not heating,so i'm try to fix this,i check all 3 fuse is good ,i switch the connection from pump one to pump 2, i find out pump no.2 is working, so that mine 2 pump is working, so i change the relay on pump no.2. still the same pump no.2 not working can you tell me what's the problem?thank you.
1
VIP Pools and Spas

[@tingletrent]

Did you ever figure this out?