Aquacal LTM0266 - Manual (Page 37)

Page 31
SYMPTOM RULE OUT RESOLUTION
Heat Pump Running, Not Cooling
Incorrect mode
setting
STEP 1:
Confirm the heat pump mode is set to either “COO” OR
“ACH”. See “Setting Operating Mode” on page 3 for
more information.
Not transferring
heat out of water
STEP 2:
Measure temperature of source-side discharge water
coming out of heat pump. If discharge water is warmer
than incoming source water, the heat pump is moving
heat into the source water.
Incorrect
thermostat
setting
STEP 3:
Confirm the thermostat is set below the current water
temperature
. See “Setting Thermostats” on page 3 for
more information.
External
controller is
being used
improperly
STEP 4:

If an external controller is being used, confirm heat
pump is set to accept the controller’s signal. See
section entitled “External Controls / Equipment” on
page 22
and “Configuring for External Controller” on
page 24 for more information.

If heat pump is set correctly to accept an external
controller’s signal, contact the installer of the
external controller device or the device’s
manufacturer for further assistance.
Error condition
exists
STEP 5:
If an error code is displayed, see appropriate fault code
in this section. If no fault code is displayed, proceed to
next step.
Cooling incorrect
body of water
STEP 6:
Confirm valves are correctly positioned to cool the
correct body of water.
Insufficient run
time
STEP 7:
Water source equipment will generally be set to run 24
hours a day in commercial applications. Confirm that
water pump is not being set with low runtimes.
STEP 8:
Call heat pump installer or AquaCal AutoPilot Customer
Support for further assistance.
Water Coming From Heat Pump
Determine if
water is from a
leak or
condensation
STEP 1:
If using chlorine or bromine as a pool / spa sanitizer,
use a test strip in water at heat pump to determine if
sanitizer is present. If sanitizer is present, a leak may
exist.
STEP 2:
Turn off heat pump, leaving water pump on. After
several hours, determine if water is still coming from
heat pump. If water is still coming from heat pump, a
leak may be present.
STEP 3:
Call heat pump installer or AquaCal AutoPilot Customer
Support for further assistance.