Hayward AQ-SOL-LV-TC Operation Manual - Page 13

Troubleshooting

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Troubleshooting 1. "Power" LED off: Check main power circuit breakers. Check to see if the Aqua Solar power is connected to the LOAD side of the filter pump timer, in which case the Aqua Solar will only be on when the filter pump is on. Lastly, check the internal fuse which is located on the right upper side of the main circuit board. If necessary, replace the fuse with a type 3AG, 2 amp, slo-blo fuse, which is available in most electrical or electronics stores. 2. "Heating" LED is always on: Check that the switch is in the "AUTO" position. Check the sensor temperatures: The "Heating" LED should go off if the pool temperature is less than the "Desired Temperature" OR if the solar temperature is less than the pool temperature. If the sensors appear to giving incorrect readings, check the sensors using the temperature/ resistance/voltage chart on the back cover. 3. "Heating" LED never comes on: Verify that the switch is in the "AUTO" position. Check the sensor temperatures: The "Heating" LED should turn on when the pool temperature is less than the "Desired Temperature" AND the solar temperature is warmer than the pool temperature. The exception is when solar override is being used (typically when the pool is filtered at night, but the solar override function is used to turn the filter pump on during the day when solar heat is available): In this case, there is a 2 hour minimum off time to prevent rapid on/off cycling of the filter pump. If the sensors appear to giving incorrect readings, check the sensors using the temperature/resistance/voltage chart on the back cover. 4. "Heating" and "Cooling" LEDs on simultaneously This indicates that the main switch is in the "ON" position. The Aqua Solar will operate the solar valve and the booster pump (if installed) regardless of the sensor temperatures. Set the switch back to "AUTO" to resume normal operation. 5. "Heating" and "Cooling" LEDs flashing simultaneously This indicates that recirculate freeze protection is active (solar valve on, boost pump on (if used), and filter pump on) due to the "AUX" sensor being less than 35ºF OR the "AUX" sensor being disconnected OR any freeze snap switches wired in series with the "AUX" sensor being open. If the "AUX" sensor is not connected OR a freeze snap switch is open, the "AUX" temperature display will be " LO ". The Aqua Solar will continue this operating mode until the "AUX" sensor rises above 35ºF AND all freeze snap switches wired in series with the "AUX" sensor are closed. This function operates regardless of the position of the "ON / AUTO / OFF" switch. 6. "Pool Sensor" LED on or flashing "Err" on the pool temperature display: 10

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10
Troubleshooting
1.
"Power" LED off:
Check main power circuit breakers.
Check to see if the Aqua Solar power is connected
to the LOAD side of the filter pump timer, in which case the Aqua Solar will only be on
when the filter pump is on.
Lastly, check the internal fuse which is located on the right
upper side of the main circuit board.
If necessary, replace the fuse with a type 3AG, 2
amp, slo-blo fuse, which is available in most electrical or electronics stores.
2.
"Heating" LED is always on:
Check that the switch is in the “AUTO” position.
Check the sensor temperatures:
The "Heating" LED should go off if the pool temperature is less than the "Desired
Temperature" OR if the solar temperature is less than the pool temperature.
If the
sensors appear to giving incorrect readings, check the sensors using the temperature/
resistance/voltage chart on the back cover.
3.
"Heating" LED never comes on:
Verify that the switch is in the “AUTO” position.
Check the sensor temperatures:
The
"Heating" LED should turn on when the pool temperature is less than the "Desired
Temperature" AND the solar temperature is warmer than the pool temperature.
The
exception is when solar override is being used (typically when the pool is filtered at
night, but the solar override function is used to turn the filter pump on during the day
when solar heat is available):
In this case, there is a 2 hour minimum off time to prevent
rapid on/off cycling of the filter pump.
If the sensors appear to giving incorrect
readings, check the sensors using the temperature/resistance/voltage chart on the
back cover.
4.
"Heating" and "Cooling" LEDs on simultaneously
This indicates that the main switch is in the "ON" position.
The Aqua Solar will
operate the solar valve and the booster pump (if installed) regardless of the sensor
temperatures.
Set the switch back to "AUTO" to resume normal operation.
5.
"Heating" and "Cooling" LEDs flashing simultaneously
This indicates that recirculate freeze protection is active (solar valve on, boost pump
on (if used), and filter pump on) due to the "AUX" sensor being less than 35ºF OR the
"AUX" sensor being disconnected OR any freeze snap switches wired in series with
the "AUX" sensor being open.
If
the "AUX" sensor is not connected OR a freeze
snap switch is open, the "AUX" temperature display will be " LO ".
The Aqua Solar
will continue this operating mode until the "AUX" sensor rises above 35ºF AND all
freeze snap switches wired in series with the "AUX" sensor are closed.
This function
operates regardless of the position of the "ON / AUTO / OFF" switch.
6.
"Pool Sensor" LED
on or flashing
"Err" on the pool temperature display: