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I have a Gecko SC-CF-SPD spa system and the control LED

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screen is blank. There is...
I have a Gecko SC-CF-SPD spa system and the control LED screen is blank. There is power to the circuit board and the ozone generator is working. None of the functions will work on the LED control panel
Submitted: 2 years ago.Category: Pool and Spa
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Answered in 7 hours by:
2/2/2016
Pool and Spa Expert: Fix my Pool and Spa, Owner / Technition replied 2 years ago
Fix my Pool and Spa
Fix my Pool and Spa, Owner / Technition
Category: Pool and Spa
Satisfied Customers: 1,129
Experience: Over 24 years in pool and spa service and construction
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First thing to check is the fuses located on the circuit board when in doubt just replace them, next the power to the topside display is controlled by the transformer on the circuit board. You will have a plug usually in the center of the board that goes to a square looking electronics that would be it and you need to test voltage into the transformer and out of it to determine if the transformer is bad, you should have 220 volts going in and 24 volts coming out if nothing on the out then the transformer is bad and replace. Lastly try and unplug the topside from the board and look for any burn marks or damage and then plug back in and turn breaker back on and see if it lights up. Most likely it will be a fuse but check it out and see.

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Customer reply replied 2 years ago
I found the problem with the voltage. One side of the circuit breaker was burnt and not allowing current to flow. I now have the topside unit working but am unable to get the heater going. I have tested for shorts or an open circuit and all checks O.K. The High limit switch is closed
Pool and Spa Expert: Fix my Pool and Spa, Owner / Technition replied 2 years ago

OK so now you need to look at all the safety switches like the temp sensor the high limit sensor and the pressure/flow switch. All of these switches need to close to allow power to go to the heater assembly. Now I would turn the spa on and turn the temp up on the heater and test for voltage across the two heater posts you need to have 220 volts ACROSS the two terminals. If you have voltage there then the heater element is bad, if no voltage look at the pressure/flow switch this is located on or near the heater and has two small wires that go up into circuit board and plug into board. Jump across these two wires to jump out the pressure switch and see if the heat starts to work if so you have a bad pressure switch.

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