Page 46
MESSAGE DISPLAYED
PROBLEM
TYPICAL SOLUTION
Cover is closed.
“
Cover closed
” is
not displayed.
Chlorine production
too high.
1. Confirm the installed Digital Nano/Nano+ model has
the Pool Cover Detection feature. If not, manually
reduce chlorine level when cover is closed. (The
cover detection option is only available on some
models. See Specifications in section 4.1 on page 8.)
2. Check external cover position switch for proper
operation.
3. Check cable/connections from the cover position
switch to the Digital Nano/Nano+.
Cover is open.
“
Cover closed
” is
displayed.
Temperature display shown or
not shown
Temperature is not
shown on normal
display.
Normal operation if
“Display temp.” has been set to “Hide
t
emperature” See section 7.6.7. “Display Temperature” on
page 24 for instructions on how to change.
Note: Temperature will always be visible in the “Test Pool
Pilot” menu.
Does not match other
pool temperature
displays.
1. Normal
– This temperature may not match other pool
devices due to the sensor location (ie: may be after
heater). Disable “Display temp”. See section 7.6.7. on
page 24.
2. The temperature display can be disabled in the
“Installer menu”.
3. The temperature may be adjusted to match an
external thermometer. See “Calibrate Temperature”
on page 23.
Chlorine display
Chlorine locked at
1%.
If the water temperature is 55°F (10°C) or colder the Pool
Pilot
®
has automatically turned the Chlorine output down
to 1% to avoid over-chlorination. Bacteria and algae
growth is greatly reduced at this temperature, so this
should not be a problem.
Cannot adjust
chlorine production
above 20% and
“
Cover closed
” is
displayed.
1. Normal operation if your pool cover is closed. The
Digital Nano/Nano+ will not allow the chlorine
production to go above 20%. This is to avoid over
chlorination.
2. If cover is open, then check the external dry contact
cover position switch & cable for proper operation.
Chlorine % fluctuates
from adjusted value.
The AutoPilot
®
unit has a patented process for
automatically increasing and reducing the chlorine
output as the temperature of the water fluctuates. It is
normal for the % output to increase as the water
temperature increases, and to decrease as the water
temperature decreases.
Blank display
The Pool Pilot
®
Display is blank.
1. If the display is in bright sunlight, then shade the
display to read.
2. Verify external time clock has not turned off power to
Digital Nano/Nano+. (Temporarily override the time
clock, if desired, to check the Digital Nano/Nano+.)
3. Verify local shut off switch and/or main circuit breaker
for Digital Nano/Nano+ is turned on.
4. If power is provided to unit by an external control
device, verify power is provided to and from the
device.
5. Fuse may be blown. See
on page 12 in Maintenance section for instructions.
Normal Display
(Continued)
