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Compool Cp3800
Problem Solving
Display shows “Err 1”
If there is a fault with the Water Temperature Sensor, the display will show “Err 1”.
Check sensor cable and connections.
Replace Water Temperature Sensor (model TS-5L).
Display shows “Err 2”
If there is a fault with the Solar Temperature Sensor, the display will show “Err 2”.
Check sensor cable and connections.
Replace Solar Temperature Sensor (model TS-5L).
Display shows “Err 3”
If there is a fault with the Freeze Temperature Sensor, the display will show “Err 3”.
Check sensor cable and connections.
Replace Freeze Temperature Sensor (model TS-5L).
Display shows “Err 4”
If the Control Panel is not able to communicate with the Power Center, the display will show
“Err 4”.
Check communication cable and connections.
Use test cable provided in low voltage compartment of the Power Center to determine if
the cable is the problem.
Display shows “Err 5”
If there is a short at the Spa-side Remote, the display will show “Err 5” and the Remote Control
is disabled (see L.E.D. behind right door of Contol Panel).
Replace Spa-side Remote switch.
Temperature display is not correct
Calibrate Water Temperature Sensor. See Calibration for details.
Heater does not operate
Check desired water temperature setting. See Control Panel for details.
Check Heat Source key. See Control Panel for details.
Check switches on heater.
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