Service Analyser Codes - Waterco Electroheat SubZero Supplementary User And Care Manual Manual

Service Analyser Codes

Most problems will be detected by the service analyser and a code will be displayed on the
digital display of your heater.
DISPLAY MEANING OF CODE
OFF The desired programmed temperature point is lower than 15°C.
LP & LP3 Shortage of refrigerant gas in the unit or faulty low pressure control.
The digital display will show LP3 after 3 LP faults and it will shut down
your pool heater. The pool pump will also be stopped for protection*.
See also FS code. If LP3 occurs you should call for service.
HP & HP3 Low water flow to the unit or faulty high pressure control. Check water
flow. Adjust bypass valves to allow full water flow. Backwash filter. The
unit will show HP3 after 3HP faults. This will stop your heater and the
pool pump for protection.*
Psd Pool Sensor Defective. The water temperature probe is open or
defective. Verify connections.
FLO & FL3 Possible causes:
- FIL parameter must be set to activate pool pump.*
- The filter is in backwash position.
- The filter pump is stopped.
- The filter is dirty.
- Shortage of water to pool pump.
- Water pressure switch must be adjusted or it is defective.
- The unit is in the protection mode and will show FL3, press any key
to restart the unit. FI3 code will stop your heater for protection. It will
also stop the pool pump to protect it from overheating.*
dPd Defrost Probe Defective. Suction temperature probe is open or
defective. Verify connections.
FS & FS4 Unit in the defrosting cycle. (The fan works but the compressor is
stopped). This is normal operation when outside temperatures are
cold.
After unit stop with "FS4" message, the unit is lockout for 30 minutes;
after this period, frost sensor temperature needs to reach 15°C to start
back the unit (over 15°C the "FS4" counter is reset). Pressing any
button will also reset this lockout condition.
* If unit's internal time clock feature is used.
Heat Pump Swimming Pool Heaters
I pg 07