11
Compool Lx220
Problem Solving
Power On Light Does Not Illuminate
Verify the circuit breaker at sub-panel is not tripped. If the 3-amp Circuit Breaker on the LX-
220 is tripped, it is most often due to a defective Circuit Board or Valve Actuator. Try
disconnecting each one separately to determine which one is at fault.
Solar On Light Does Not Illuminate
The SOLAR ON light will only illuminate when the solar temperature is 5 degrees warmer than
the water temperature.
Check the SENSOR SERVICE REQUIRED Lights on the LX-220 Solar Control. If either Light
is illuminated, inspect the appropriate cable and wire connections and replace the appropriate
Temperature Sensor if necessary . An ohm meter can be used to take a reading of the Sensors.
See Table 1.
If the Temperature Sensors are not at fault, replace the Circuit Board.
Solar On Light Is Always Illuminated
Check the SENSOR SERVICE REQUIRED Lights on the LX-220 Solar Control. If either Light
is illuminated, inspect the appropriate cable and wire connections and replace the appropriate
Temperature Sensor if necessary. An ohm meter can be used to take a reading of the
Temperature Sensors. See Table 1.
If the Temperature Sensors are not at fault, replace the Circuit Board.
Water Flow To Panels Switch Does Not Operate The Valve Actuator
If the Valve Actuator does not operate when using the WATER FLOW TO PANELS Switch
(sliding switch between ON and OFF), either the Valve Actuator or the Circuit Board is at fault.
First verify that the toggle switch located on the Valve Actuator is either in the ON1 or ON2
position.
With a voltmeter, check the output voltage of the VLV1 socket located on the LX-220 Circuit
Board. When the WATER FLOW TO PANELS Switch is in the OFF position, the top and
middle pins should read 24 VAC. When the WATER FLOW TO PANELS switch is in the ON
position, the top and bottom pins should read 24 VAC.
If voltage readings are correct, replace the Valve Actuator. If voltage readings are incorrect,
replace the Circuit Board.
Checking The Temperature Sensors
Disconnect Temperature Sensor wires from the circuit board, and test sensor using an ohm
meter. See Table 1.
To Next Page
Loading...
