Issues and Resolutions

ISSUE

The Heat Pump is experiencing an incoming power fluctuation.

RESOLUTION

An electrician should check for improper electrical site conditions.

ISSUE

The Heat Pump may have an incoming power problem.

RESOLUTION

Confirm electrical power is being supplied to the heat pump from electrical disconnect(s).

ISSUE

The maximum allowed set temperature for a Water Source unit is 96° F (35.6° C).

RESOLUTION

Install an over temperature safety device. This will allow a maximum set temperature of 104° F (40° C). See "Over Temperature Alarm Kit"

ISSUE

The heat pump's display panel will not respond to user input.

RESOLUTION

1. If heat pump display shows "UNDER REMOTE CONTROL", use the external control device to control the heat pump.
2. If needed, check with the external controller manufacturer for further assistance using that device.

ISSUE

The heat pump has encountered a software error.

RESOLUTION

Call for service.

ISSUE

Low or no pool/spa water detected. This is normal when the circulation pump is deactivated.

RESOLUTION

1. Confirm the filter pump is on.
2. If a multiple-speed filter pump is being used, run at a higher speed to determine if the error persists. Do not exceed the maximum flow rate for your model.
3. Confirm water is not being diverted away from the heat pump.
• See "Water Flow Rates"
• See "Adjusting Water Flow Using ΔT (Delta-T)"

ISSUE

Low or no source water detected.

RESOLUTION

1. Confirm the source water pump is on.
2. If a multiple-speed source water pump is being used, run at a higher speed to determine if the error persists. Do not the exceed maximum flow rate for your model.
3. Confirm water is not being diverted away from the heat pump.
• See "Water Flow Rates"
• See "Adjusting Water Flow Using ΔT (Delta-T)"

ISSUE

If when pressing the "Pool / Spa" button the display flashes the message "SET TO SWITCH REMOTELY", the heat pump is using a remote relay switch or a 3-wire controller.

RESOLUTION

• The Pool and Spa thermostat automatically switch when using these modes.
• Operation manually will not be available when using these external devices. No action is required.

ISSUE

The heat pump has encountered a software error.

RESOLUTION

• The model number and serial number will need to be re-entered into the system. The system will then operate as normal.

• If the issue reoccurs, please contact AquaCal^® Technical Support.

ISSUE

The heat pump will not run.

RESOLUTION

1. Confirm equipment is receiving power. Is the heat pump display illuminated?
   • If not, confirm the main breaker (located at the power supply panel) and the disconnect switch (located near the heat pump) are both turned on.
   • If the display still does not illuminate, it is recommended that the heat pump installer or electrician confirm the heat pump is receiving power.
2. Confirm correct mode is selected.
3. Confirm thermostat is set correctly.
   • When heating the water is desired, the thermostat should be set above the current water temperature.
   • When cooling the water is desired, the thermostat should be set below the current water temperature.
4. If an error code is displayed, diagnose and correct the cause of the code.
   • See "Fault Codes"
5. If the heat pump is using an external controller, the heat pump may not be set correctly to accept the controller’s signal.

ISSUE

The heat pump breaker(s) keeps tripping.

RESOLUTION

1. If AquaCal®heat pumps have been connected using a multiple heat pump configuration, the configuration may be incorrect. Please confirm settings or contact installer of equipment.
   • See "Connecting Multiple Heat Pumps (Primary / Secondary)"
2. Have an electrician confirm breakers are correct type, in good condition, and properly sized for the heat pump.

ISSUE

The heat pump will not deactivate.

RESOLUTION

1. Confirm the correct mode has been set on the heat pump.
2. Confirm the heat pump has reached the desired temperature set on the thermostat. The heat pump will continue to run until the set temperature is reached.
3. If the heat pump is using an external controller, it may not be set correctly. See the external controller's manual.

ISSUE

The heat pump is running. But the water is not heating.

RESOLUTION

ISSUE

The heat pump is running. But the water is not cooling.

RESOLUTION

ISSUE

The "Pool / Spa" button is disabled if the following devices have been configured on the heat pump.

RESOLUTION

• A 2-wire external controller.
• A 3-wire external controller.
• An external flow switch.