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Error Messages
The following error messages are displayed in pool, spa, and remote modes. Consecutive identical faults are only
stored once in the "Fault History".
WARNING: Performing service on this equipment requires specialized expertise, mechanical skills, tools, and
A
equipment. If you do not possess these, it is not recommended to attempt any service on this equipment unless
following the procedures outlined in this manual.
Display
In Sensor Fault
Inlet sensor fault - Check for low water flow conditions. Check pump speed. Check inlet sensor.
In Sensor Open
Inlet sensor fault - Sensor open. Check sensor wires and harness terminals.
In Sensor Short
Inlet sensor fault - Sensor short. Check sensor wires and terminals.
Out Sensor Open
Outlet sensor open - Check sensor wires and terminals.
Out Sensor Short
Outlet sensor shorted - Check sensor wires and terminals.
Amb. Sensor Open
Ambient temperature sensor open - Check sensor wires and terminals.
Amb. Sensor Shrt
Ambient temperature sensor shorted - Check sensor wires and terminals.
Flow Sensor Fail
Flow sensor fault - Readings out of range. Check flow sensor settings.
Check Pump Fault
Pump controller faulted - Check that pump controller status. Check configuration.
Coil Sensor Open
Coil sensor open - Check sensor wires and terminals.
Coil Sensor Short
Coil sensor short - Check sensor wires and terminals.
Protégé pump is not responding - Check that pump is powered and connected. Check variable-speed
Pump Ctl Fail
pump settings.
Sensor Misplaced
Water inlet temperature is higher than outlet temperature while heating. Check sensors installation.
Internal Fault
Controller faulted - Memory corrupted. Power cycle unit. Replace main board.
Temperature lockout - Water temperature below is 36°F (2°C). Check water temperature. Check inlet
Low Temp Lockout
sensor.
Hi Press Trip
High-pressure switch tripped - Check water flow, check refrigerant load
Lo Press Trip
Low-pressure switch tripped - Check refrigerant load
Hi Press Lockout
High-pressure lockout - Multiple pressure trips detected. Check refrigerant load
Lo Press Lockout
Low-pressure lockout - Multiple pressure trips detected. Check refrigerant load
Brownout
Low voltage in 24V transformer - Check voltage input 230v /208v
Clock Fault
Real time clock fault - Unable to read or set clock
Hi Water Trip
High-temperature water trip - Inlet water is higher than 106°F (41°C).
Hi Water Lockout
High-temperature water lockout - Inlet water is higher than 108°F (42°C).
Remote Error
Remote 3-wire selector fault - Pool and spa inputs are energized. Check 3-wire remote control terminals.
Water PS Open
Water pressure switch open - Check pump operation. Check water flow.
Outside Lockout
Outside lockout - Compressor not running because ambient too cold.
Hi Delta-T
High delta temperature between inlet and outlet. Check water flow. Check pump operation.
Heating Fail
Outlet temperature not higher than inlet temperature. Check compressor.
Cooling Fail
Outlet temperature not lower than inlet temperature. Check reversing valve.
Solar Sensor Open
Solar sensor open - Check sensor wires and terminals.
Solar Sensor Short
Soar sensor short - Check sensor wires and terminals.
Defrost Lockout
Defrost operation not effective. Confirm ambient conditions.
Aux Input Warning
Auxiliary input is open - Check heater. Check wiring and configuration of auxiliary input
Aux Input Fault
Auxiliary input is open - Check heater. Check wiring and configuration of auxiliary input
No Communication
Communication harness between Main board and Keypad may be damaged or disconnected. Check wires
with Heat Pump
or replace harness.
Troubleshooting
Table E.
Error Messages
29
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