Owner`s manual

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Error Messages ( Continued )

“FC” Freeze Condition

The System checks the water temperature for a reading at or below 55ºF(12ºC). If an error is

detected, the topside control will display the code “FC”. This means a potential freeze condition

has been detected (the spa temp is below 55ºF(12ºC). If the spa was recently filled with cold

water then no action is required at this time. The system will automatically turn on the heater. The

heater will still work even in the economy mode (ECO Mode) The spa will automatically bring the

water temperature up to a safe temperature then shut down. When the water temperature in the

spa is equal to or less than 50ºF(10ºC) the spa will turn on the high speed pump for 5 minutes,

the heater is not active. Then the system will automatically start the heater and the low speed

pump for 20 minutes. These cycles will be repeated until the spa reaches a safe temperature.

The topside control will display “FC” - current water temperature - “FC”. This must be repaired

by a service technician if the problem persists.

“Ht” High temperature condition.

The control system checks the spa water for a temperature equal to or above 110ºF(43ºC). If the

water temperature is equal to or above 110ºF(43ºC), The topside control will display the code

“Ht” - current water Temp - “Ht”. All the Jets will shut down. This issue can be caused by

outside air temperatures being too high in the summer time. Also excessive circulation cycle

times in the summer can cause this error: i.e. resetting the high speed Jets continuously after

each 20 minute shut down cycle. This must be repaired by a service technician if the problem

persists.

“OHt” Overheating Condition / Watchdog.

The system checks the spa water for temperature equal to or above 120ºF(48ºC) or the heater

enclosure temperature that is equal to or above 125ºF(51ºC). If the spa water temperature is

equal to or above 120ºF(48ºC) or the heater enclosure temperature is equal to or above

125ºF(51ºC), the topside control will flash “OHt” - current Water Temp - “OHt”. The “OHt”

condition requires a manual reset either by pushing the buttons simultaneously, or by

turning the main power off and then back on. The heater hi-limit switch cannot reset until the

heater enclosure temperature drops below 123ºF(50ºC) or the water temperature in the spa

drops below 117ºF(47ºC). This must be repaired by a service technician if the problem persists.

Note: For manual reset, push the buttons simultaneously or turn the main power off

and then back on.