Fairland
Fairland Pool Heaters Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E01
Unit will not start; display shows E01 shortly after power-up, compressor never engages.
Low Refrigerant Pressure Protection
E02
Pool heater stops heating and displays E02; fan may run briefly then stop.
High Refrigerant Pressure Protection
E03
Unit attempts to start but quickly shuts down with E03 on the display.
Water Flow Protection / Low Water Flow
E04
Heater stops and displays E04; unit may start then shut down after a short run.
High Water Temperature Protection
E05
Display shows E05 and the unit will not start heating.
Ambient Air Temperature Sensor Fault
E06
Heater displays E06 and stops; may occur intermittently during operation.
Water Inlet Temperature Sensor Fault
E07
Display shows E07; unit will not run or stops shortly after starting.
Water Outlet Temperature Sensor Fault
E08
Unit shows E08 and does not start; sometimes appears after a power surge or storm.
Communication Failure Between Display Panel and Main PCB
E09
Heater attempts to start but shows E09 and shuts down; fan may run but compressor does not.
Compressor Overload / Overcurrent Protection
E10
Display shows E10; unit does not start or stops unexpectedly.
Fan Motor Fault / Fan Speed Error
E11
Heater shows E11 and will not run; often appears after lightning or power surge.
Main PCB Fault / Internal Control Error
E12
Display shows E12; unit may start but quickly stops, especially in cold or damp weather.
Defrost Sensor Fault / Coil Temperature Sensor Error
E13
Heater displays E13 and refuses to start; may be associated with incorrect wiring or supply.
Phase Protection / Phase Loss or Reversal (Three-Phase Models)
E14
Display shows E14; unit may start and stop repeatedly without heating properly.
Inverter Module Fault (for Fairland Inverter / Full-Inverter Models)
E15
Heater shows E15; unit may not respond to control commands or remote signals.
External Control / Communication Error (BMS or Remote Interface)
E16
Display shows E16; heater may run at reduced capacity or shut down.
Current Sensor / Overcurrent Detection Fault
E17
Heater shows E17 and stops; may be associated with very low ambient temperatures and ice buildup.
Defrost Protection / Excessive Frost or Defrost Failure
E18
Display shows E18; heater may not start after repeated short cycling.
High Discharge Temperature Protection
E19
Heater shows E19 and will not start; often appears immediately at power-up.
EEPROM / Parameter Memory Error
Symptom
Condensate water overflows around the base instead of draining away neatly.
Blocked Condensate Drain
Symptom
Corrosion or rust visible on metal parts of the Fairland heater cabinet or fasteners.
Corrosion from Pool Environment
Symptom
Display is on but buttons do not respond or respond intermittently.
Unresponsive Control Panel / Keypad Failure
Symptom
Display shows normal operation but actual pool water temperature reading seems inaccurate.
Temperature Reading Offset / Calibration Error
Symptom
Fairland heater frequently shuts off due to low water flow when the pool pump is on low speed.
Flow Switch Nuisance Trips with Variable-Speed Pump
Symptom
Fan runs but compressor does not start; no error code displayed.
Compressor Fails to Start Without Fault Code
Symptom
Heater starts then stops after a few minutes without showing an error code; cycle repeats frequently.
Short Cycling / Control Instability
Symptom
Heater trips the house breaker when starting or shortly after starting.
Nuisance Tripping / Overcurrent or Short Circuit
Symptom
High-pitched whine or humming noise from the Fairland inverter pool heater.
Inverter Acoustic Noise / Electrical Hum
Symptom
Loud rattling or vibrating noise from the Fairland heater during operation.
Excessive Vibration / Mechanical Noise
Symptom
Pool heater runs but pool does not reach set temperature; heating is very slow or seems ineffective.
Insufficient Heating Capacity / Performance Degradation
Symptom
Strong chemical or burning smell near the Fairland heater during operation.
Overheating Electrical Components or Chemical Off-Gassing
Symptom
Unit does not power on at all; display is blank and fan/compressor do not run.
No Power / Dead Unit
Symptom
Unit operates but makes a gurgling or hissing sound from inside the refrigerant circuit.
Refrigerant Flow Noise / Possible Low Charge
Symptom
Visible frost or ice buildup on the evaporator coil or around the base of the unit during operation.
Excessive Coil Icing
Symptom
Water flow through the heater seems restricted; pressure at pool returns is lower when heater is in circuit.
Hydraulic Restriction Through Heater
Symptom
Water leaking from the base of the Fairland pool heater cabinet.
Water Leak from Heat Exchanger or Plumbing
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Unit will not start; display shows E01 shortly after power-up, compressor never engages.
|
Low Refrigerant Pressure Protection | View Details |
| E02 |
Pool heater stops heating and displays E02; fan may run briefly then stop.
|
High Refrigerant Pressure Protection | View Details |
| E03 |
Unit attempts to start but quickly shuts down with E03 on the display.
|
Water Flow Protection / Low Water Flow | View Details |
| E04 |
Heater stops and displays E04; unit may start then shut down after a short run.
|
High Water Temperature Protection | View Details |
| E05 |
Display shows E05 and the unit will not start heating.
|
Ambient Air Temperature Sensor Fault | View Details |
| E06 |
Heater displays E06 and stops; may occur intermittently during operation.
|
Water Inlet Temperature Sensor Fault | View Details |
| E07 |
Display shows E07; unit will not run or stops shortly after starting.
|
Water Outlet Temperature Sensor Fault | View Details |
| E08 |
Unit shows E08 and does not start; sometimes appears after a power surge or storm.
|
Communication Failure Between Display Panel and Main PCB | View Details |
| E09 |
Heater attempts to start but shows E09 and shuts down; fan may run but compressor does not.
|
Compressor Overload / Overcurrent Protection | View Details |
| E10 |
Display shows E10; unit does not start or stops unexpectedly.
|
Fan Motor Fault / Fan Speed Error | View Details |
| E11 |
Heater shows E11 and will not run; often appears after lightning or power surge.
|
Main PCB Fault / Internal Control Error | View Details |
| E12 |
Display shows E12; unit may start but quickly stops, especially in cold or damp weather.
|
Defrost Sensor Fault / Coil Temperature Sensor Error | View Details |
| E13 |
Heater displays E13 and refuses to start; may be associated with incorrect wiring or supply.
|
Phase Protection / Phase Loss or Reversal (Three-Phase Models) | View Details |
| E14 |
Display shows E14; unit may start and stop repeatedly without heating properly.
|
Inverter Module Fault (for Fairland Inverter / Full-Inverter Models) | View Details |
| E15 |
Heater shows E15; unit may not respond to control commands or remote signals.
|
External Control / Communication Error (BMS or Remote Interface) | View Details |
| E16 |
Display shows E16; heater may run at reduced capacity or shut down.
|
Current Sensor / Overcurrent Detection Fault | View Details |
| E17 |
Heater shows E17 and stops; may be associated with very low ambient temperatures and ice buildup.
|
Defrost Protection / Excessive Frost or Defrost Failure | View Details |
| E18 |
Display shows E18; heater may not start after repeated short cycling.
|
High Discharge Temperature Protection | View Details |
| E19 |
Heater shows E19 and will not start; often appears immediately at power-up.
|
EEPROM / Parameter Memory Error | View Details |
| – |
Condensate water overflows around the base instead of draining away neatly.
|
Blocked Condensate Drain | View Details |
| – |
Corrosion or rust visible on metal parts of the Fairland heater cabinet or fasteners.
|
Corrosion from Pool Environment | View Details |
| – |
Display is on but buttons do not respond or respond intermittently.
|
Unresponsive Control Panel / Keypad Failure | View Details |
| – |
Display shows normal operation but actual pool water temperature reading seems inaccurate.
|
Temperature Reading Offset / Calibration Error | View Details |
| – |
Fairland heater frequently shuts off due to low water flow when the pool pump is on low speed.
|
Flow Switch Nuisance Trips with Variable-Speed Pump | View Details |
| – |
Fan runs but compressor does not start; no error code displayed.
|
Compressor Fails to Start Without Fault Code | View Details |
| – |
Heater starts then stops after a few minutes without showing an error code; cycle repeats frequently.
|
Short Cycling / Control Instability | View Details |
| – |
Heater trips the house breaker when starting or shortly after starting.
|
Nuisance Tripping / Overcurrent or Short Circuit | View Details |
| – |
High-pitched whine or humming noise from the Fairland inverter pool heater.
|
Inverter Acoustic Noise / Electrical Hum | View Details |
| – |
Loud rattling or vibrating noise from the Fairland heater during operation.
|
Excessive Vibration / Mechanical Noise | View Details |
| – |
Pool heater runs but pool does not reach set temperature; heating is very slow or seems ineffective.
|
Insufficient Heating Capacity / Performance Degradation | View Details |
| – |
Strong chemical or burning smell near the Fairland heater during operation.
|
Overheating Electrical Components or Chemical Off-Gassing | View Details |
| – |
Unit does not power on at all; display is blank and fan/compressor do not run.
|
No Power / Dead Unit | View Details |
| – |
Unit operates but makes a gurgling or hissing sound from inside the refrigerant circuit.
|
Refrigerant Flow Noise / Possible Low Charge | View Details |
| – |
Visible frost or ice buildup on the evaporator coil or around the base of the unit during operation.
|
Excessive Coil Icing | View Details |
| – |
Water flow through the heater seems restricted; pressure at pool returns is lower when heater is in circuit.
|
Hydraulic Restriction Through Heater | View Details |
| – |
Water leaking from the base of the Fairland pool heater cabinet.
|
Water Leak from Heat Exchanger or Plumbing | View Details |
No matching codes found
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