Hot Springs spa both lights blinking

[Ryanspitz]

I have a hot springs hot tub which was drained for most of the winter, when we went to fill it, it was full of crystals. we cleaned it out and filled with water, now both the power and ready lights are blinking and getting no heat.

[Swisser]

Could be a simple air lock in the pipe work coming from the circulation pump.
How long did you leave it on for to see if it would come right?
The pump will keep trying to function until it gets the air out and the water can flow freely, and therefore the heater wont work until this has been achieved.

[Ryanspitz]

it was actually on for while before I realized it wasn't heating.

[TemptingDestiny]

Spa does not heat; jets and light
operate (Green logo "Ready", and
Blue logo "Power" indicators are
blinking)
           • Integrated pressure switch open
                     • Check for clogged filters. Integrated pressure switch will reset when the flow of water
                        through the heater has been restored. Call for service if the heater trips frequently.

           • Circulation pump thermal cut-off tripped
                     • Check for clogged filters or air locks in plumbing. Disconnect power to the spa, allow
                        circulation pump to cool. Circulation pump thermal cut-off will reset when pump has cooled
                        and power is reapplied. Call for service if circulation pump thermal cut-off trips frequently.