Owner`s manual

www.imperialspaparts.com

Error Messages

The control system is a self-diagnostic system. The system will automatically display the error

messages in the topside control window, if a problem is detected.

HtS High Temp Sensor:

The control system checks the heating components and temperature sensor for errors. If a tem-

perature sensor is open or an error is detected, the topside control will display the code HtS -

current water temp - HtS. The heater and the high/low speed jet will shut down. The automatic

reset will occur after the open sensor condition is fixed. If the temperature sensor is closed and

an error is detected, the topside control will display the code HtS - OHt - current water temp -

HtS. The entire system will be disabled and the spa will need to be manually reset after the

shorted sensor condition is fixed. This must be repaired by a service technician if the problem

persists.

tS Temp Sensor:

The control system checks the water temperature sensor for errors. If a temperature sensor is

open and an error is detected, the topside control will display the code tS - 0 - tS. The heater and

the High/low speed jet will shut down. The automatic reset will occur after the open sensor

condition is fixed. If the temperature sensor is closed and an error is detected, the topside control

will display the code tS - 255 - Ht - OHt - tS. The entire system will be disabled and a manual

reset will be required after the shorted condition is fixed. This must be repaired by a service

technician if the problem persists.

PS1:

The control system checks for a closed pressure switch with the low speed pump or high speed

pump active. If an error is detected, the topside control will display PS1 - current water temp -

PS1. The heater will be deactivated. An automatic reset will occur if this condition is fixed within

2 1/2 minutes. After 2 1/2 minutes the jet pump will shut down. The manual reset is required if this

condition has existed more than 2 1/2 minutes. This error may be caused by a dirty filter. Remove

and clean the filters before calling for service. For manual reset, push the buttons simulta-

neously or turn the main power off and then back on. This must be repaired by a service techni-

cian if the problem persist.

PS2:

The system checks for an open pressure switch when the pump is off. If an error is detected, the

topside control will display the code PS2 - current water temp - PS2. The heater will shut down.

An automatic reset will occur if this condition is fixed. The pressure switch may be out of adjust-

ment or the water level is too high. This must be repaired by a service technician if the problem

persists.

dCP DC power:

The system checks for DC power at the relay (master control relay). Code dCP is displayed if an

error is found. This message can appear after a power interruption or lightning. This must be

repaired by a service technician if the problem persist.