Document LTP0114 rev 1.03

 

Issues and Resolutions

WARNING

Failure to heed the following may result in injury or death.

 

  • Repairs must not be attempted by untrained or unqualified individuals.
  • The heat pump contains refrigerant under pressure. Repairs to the refrigerant circuit must not be attempted by untrained or unqualified individuals. Service must be performed only by qualified HVAC technicians. Recover refrigerant before opening the system.

NOTICE

Failure to heed the following may result in damage to equipment.

 

  • Service by unauthorized personnel will void the factory warranty.

Please perform the following troubleshooting.

  1. If the heat pump is using an external controller, confirm it is set correctly.
    • If the heat pump is still not running correctly with this device, contact the installer of the external controller device or the device’s manufacturer for further assistance.
  2. Confirm heat pump mode is set to heat.
  3. Confirm thermostat is set to the desired water temperature.
  4. Confirm valves are positioned to heat the correct body of water (either the pool or the spa). If heating a spa that overflows into a pool, confirm the spa is isolated when being heated (not flowing into the pool).
  5. Confirm heat pump is transferring heat into the water.
    • Measure the temperature of air discharge coming out of the heat pump fan. If discharge air is between 8° to 10° colder than the outside ambient air, the heat pump is moving heat into the water.
  6. If an error code is displayed, diagnose and correct cause of code.
  7. Confirm that filter pump has a sufficient run-time. The heat pump will not run (or heat the water) without water flow.
  8. If heating a spa, deactivate air blower or venturi (if equipped) to allow for quicker heating times. For pools, deactivate water features, such as slides, waterfalls, or fountains to allow water to retain heat. Use of a liquid pool blanket product, such as Aqua Blanket, can also compensate for excessive heat loss.
  1. If the heat pump is using an external controller, confirm the heat pump is programmed properly to allow for cooling.
  2. Confirm the heat pump mode is set to cool.
  3. Confirm the thermostat is set below the current water temperature.
  4. Confirm valves are positioned to cool the correct body of water (either the pool or the spa). If cooling a spa that overflows into a pool, confirm the spa is isolated when being cooled (not flowing into the pool).
  5. If an error code is displayed, determine and correct the condition causing the code.
  6. Confirm heat pump is transferring heat out of the water.
    • Measure the temperature of air discharge coming out of heat pump's fan. If the air is between 8° to 10° warmer than the outside ambient air, the heat pump is moving heat out of the water.
  7. Confirm that filter pump has a sufficient run-time. The heat pump will not run (or cool the water) without water flow.