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The screen shows FLO2 and nothing else works. It just

Customer Question
The screen shows FLO2...

The screen shows FLO2 and nothing else works

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

It just started last week, I bought a new filter thinking that might work.

Contractor's Assistant: Do you plan on doing the work yourself?

If I can, yes

Contractor's Assistant: Anything else we should know to help you best?

I have had the tub for about 8 years and have replaced the circuit board once about 5 years ago

Submitted: 4 months ago.Category: Pool and Spa
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Answered in 5 minutes by:
12/13/2017
Pool and Spa Expert: Home Guru, Handyman replied 4 months ago
Home Guru
Home Guru, Handyman
Category: Pool and Spa
Satisfied Customers: 18,332
Experience: Owner
Verified

One moment please..Note it takes time to type and add links so please be patient. Also the site will send you a phone call offer, that is not me.

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Pool and Spa Expert: Home Guru, Handyman replied 4 months ago

Do you have the model number off the tag on the frame edge of the unit?

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Customer reply replied 4 months ago
OPTIMA
Pool and Spa Expert: Home Guru, Handyman replied 4 months ago

FLO2-CLOSED OR SHORTED FLOW SWITCH ON SYSTEM START-UP (system disabled)
The flow switch is non-functional. (The flow switch when the spa is off should be "open" and when the spa turns on it should "close" the switch, from the water flow). The circuit board needs to sense that the switch is open upon start-up, not closed. You need to know you have the switch pointed in the proper direction in the pipe to be able to detect water flow. The open switch is necessary it is designed to prevent spa owners that might try to defeat the flow switch by creating a constant closed switch, such as cutting the switch wire and twisting the wires together to close the switch, this is why the board needs to sense that the switch is always open upon start-up. So you may need a new flow switch on the unit if it is bad.

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