FH235-i, FH285-i Error CodesUpdated 6 months ago
Water Flow Protection
Problem | 1: Insufficient water flow 2: Water flow switch disconnected 3: Water flow switch defective |
Solution | 1: Ensure the water connections are in the correct order 2: Ensure filter/pool pump is operating properly 3: Ensure all valves are open 4: Check the wiring and reconnect water flow switch 5: Replace flow switch |
E04 - Anti-freeze Protection
Problem | Ambient / inlet water temperature is too low |
Solution | Wait for the ambient / inlet water temperature to increase |
E05 - High Pressure Protection
Problem | 1: Insufficient water flow 2: Ambient / water temperature is too high 3: Fan motor speed is abnormal OR fan motor is damaged 4: Excess refrigerant gas 5: High pressure switch is disconnected or defective 6: Plumbing is clogged or jammed |
Solution | 1: Ensure that water connections are in the correct order. 2: Ensure pool filter / pump is operating properly 3: Ensure all valves are open 4: Wait for the ambient / inlet water temperature to decrease 5: Inspect fan motor, replace if necessary 6: Drain excess refrigerant* 7: Reconnect or replace high pressure switch* 8: Verify all plumbing is clear of obstructions and flowing properly |
E06 - Low Pressure Protection
Problem | 1: Bad ventilation 2: Low pressure switch disconnected or defective 3: Gas leakage 4: Fan motor speed is abnormal or fan motor is damaged 5: EEV blocked OR piping system jammed |
Solution | 1: Ensure the heat pump has sufficient clearance and adequate airflow 2: Clean the evaporator fins. 3: Verify the fan is running correctly 4: Reconnect or replace low pressure switch* 5: Verify that the pressure is within acceptable range. Repair leaks* 6: Inspect fan motor, replace if necessary 7: Verify all plumbing is clear of obstructions and flowing properly |
E09 - Connection Failure Between Motherboard & Controller
Problem | 1: Bad wire connection 2: Defective controller 3: Defective motherboard |
Solution | 1: Check the wire between the motherboard and controller 2: Replace controller 3: Replace motherboard |
E10 - Communication Failure Between Motherboard & Driver Module
Problem | 1: Bad wire connection 2: Defective motherboard 3: Defective driver module |
Solution | 1: Check the wire between the motherboard and controller 2: Replace motherboard 3: Replace driver module |
E12 - Excessively High Exhaust Temperature
Problem | 1: Insufficient water flow 2: Low refrigerant 3: Plumbing is clogged or jammed 4: Defective exhaust temperature sensor |
Solution | 1: Ensure that water connections are in correct order 2: Ensure that the pool is operating properly 3: Ensure all valves are open 4: Check gauge for pressure 5: Verify all plumbing is clear of obstructions and flowing properly 6: Replace sensor |
E15 - Inlet Water Temperature Sensor Failure
Problem | Sensor disconnected OR Defective |
Solution | Reconnect OR Replace sensor |
E16 - Outer Piping Temperature Sensor Failure
Problem | Sensor disconnected OR Defective |
Solution | Reconnect OR Replace sensor |
E18 - Exhaust Temperature Sensor Failure
Problem | Sensor disconnected OR Defective |
Solution | Reconnect OR Replace Sensor |
E20 - Inverter Module Abnormal Protection
Problem | N/A |
Solution | Verify all incoming voltage and major electrical components |
E21 - Ambient Temperature Sensor Failure
Problem | Sensor disconnected OR Defective |
Solution | Reconnect OR Replace Sensor |
E23 - Overcooling Protection in Cooling Mode
Problem | 1: Insufficient water flow 2: Outlet water temperature sensor failure |
Solution | 1: Ensure that water connections are in correct order 2: Ensure that the pool / filter pump is operating properly 3: Ensure all necessary valves are open 4: Replace sensor |
E27 - Outlet Water Temperature Sensor Failure
Problem | Sensor disconnected OR Defective |
Solution | Reconnect OR Replace sensor |
E29 - Suction Temperature Sensor Failure
Problem | Sensor disconnected OR Defective |
Solution | Reconnect OR Replace sensor |
E32 - Overheating Protection in Heating Mode
Problem | 1: Insufficient water flow 2: Outlet water temperature sensor failure |
Solution | 1: Ensure that water connections are in correct order 2: Ensure that the pool / filter pump is operating properly 3: Ensure all necessary valves are open 4: Replace sensor |
E33 - Piping Temperature Too High, Protection Under Cooling Mode
Problem | 1: Ambient / water temperature is too high in cooling mode 2: Refrigerant system anomaly |
Solution | 1: Verify unit temperature limits 2: Check refrigerant lines* |
E42 - Inner Piping Temperature Sensor Failure
Problem | Sensor disconnected OR Defective |
Solution | Reconnect OR Replace sensor |
E46 - DC Fan Motor Malfunction
Problem | 1: Bad wire connection 2: Fan motor defective |
Solution | 1: Check fan motor wiring 2: Replace fan motor |
WARNING
It is strongly advised that customers or non-HVAC certified technicians do not attempt any repairs on the refrigerant coil system or attempt to refill the refrigerant (such as Freon) in the heat pump. These systems require precise amounts of refrigerant, and improper handling can lead to significant damage to the internal components, void warranties, and pose safety risks. Always seek professional assistance from a certified HVAC technician for any refrigerant-related issues or repairs.