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FAULT LED is rapidly blinking (Control panel unresponsive)
ISSUE
The heat pump firmware needs to be reloaded on the control board.
RESOLUTION
1. If the heat pump is connected to a PoolSync
will automatically perform a firmware recovery.
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2. If no PoolSync
WI-FI controller is connected, the heat pump will require service from a qualified technician.
FAULT LED is blinking 1 time
ISSUE
The refrigerant system's high-pressure or low-pressure switch is showing as open.
RESOLUTION
Determine if an insufficient amount of water is being supplied to the equipment.
1. Confirm the filter pump is on.
2. If a multiple-speed filter pump is being used, run filter pump at a higher speed. Do not exceed maximum flow
rate for the model.
3. Confirm water is not being diverted away from the heat pump.
See "Water Flow Rates" on page 9.
l
4. The water pressure switch may be incorrectly calibrated. See "Adjusting Water Pressure Switch" for more
information.
FAULT LED is blinking 2 times
ISSUE
The heat pump has locked due to five high-pressure or five low-pressure faults during one call for heating.
RESOLUTION
1. Deactivate power to heat pump, wait five seconds, then reactivate power to the heat pump to clear error.
2. Troubleshoot the high-pressure issue causing the error. See "FAULT LED is blinking 1 time" above.
FAULT LED is blinking 3 times
ISSUE
Incoming water temperature exceeded 110° F and the unit is locked with a high temperature fault. The heat
pump will not operate until incoming water temperature drops to 100° F or lower.
RESOLUTION
1. Determine if another heat source (gas heater, solar heater, etc.) is heating water being sent directly to the heat
pump. This situation will need to be corrected before continuing.
2. Rule out an incorrect reading from the water temperature sensor. Verify existing water temperature with an
accurate thermometer. If heat pump's sensor is inaccurate, the water temperature sensor may require
replacement.
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WI-FI controller and is connected to the internet, the heat pump
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