Raypak 6350 Series Installation & Operating Instructions Manual page 16

Fault Code Meaning of Code
OFF The desired programmed temperature point is lower than 60°F (15°C).
Shortage of refrigerant gas in the unit or faulty low pressure control. The unit will show
LP & LP3 (LP3) after 3 LP faults and shuts down the unit and pool pump for protection. If this
occurs, you should call for service.
Low water flow in the unit or faulty high pressure control. Check water flow/backwash. The
HP & HP6
unit will show (HP6) after 6 HP faults. This will stop the unit for protection.
Possible causes:
• The filter is in backwash position.
• The filter pump is stopped.
• The filter is dirty.
FLo & FL3
• Shortage of water to pool pump.
• Water pressure switch must be adjusted or it is broken.
• The unit is in the protection mode and will show (FL3), press any key to restart the unit.
FL3 code will stop the unit and pool pump.
Unit is in the defrosting cycle.
FS
(The fan works but the compressor is stopped.)
- - Keypad is pressing down on both buttons. Replace keypad.
Table C: Control Board Fault Codes — Digital Models
16