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The LED displays the letters 'dr' flashing & 'SnS' flashing what does this mean because my spa is full but will not heat.Also when the electrician came to power up the spa he's just ran it off a standard wall powered socket instead of wiring an independant power source from the household powerbox. could this be a problem? electrician said the worst thing that would happen is the fuse would blow in the household power box.Could this be a problem?

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First, get a new electrician. Circuit should be a dedicated one, GFCI protected.

Next, the dr means the heater doesn't have sufficient water in it. The SnS means the sensor is out of balance. If the SnS is blinking, it just means the spa is shut down, more than likely because of the dr message...Check all your valving to make sure the heater is not isolated..

Posted on Jul 13, 2010

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