Aquacal LTM0266 - Manual (Page 35)

Page 29
SYMPTOM RULE OUT RESOLUTION
External
controller being
used
STEP 6:

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.
STEP 7:
Call heat pump installer or AquaCal AutoPilot Customer
Support for further assistance.
Heat Pump Running, Not Heating
Incorrect mode
setting
STEP 1:
Confirm heat pump mode is set to either “HEA” OR
“ACH”. See “Setting Operating Mode” on page 3 for
more information.
Not transferring
heat into water
STEP 2:
Measure temperature of source-side discharge water
coming out of heat pump. If discharge water is between
8° to 10°F cooler than incoming source water, the heat
pump is moving heat from the source water.
Also measure pool-side discharge water coming out of
the heat pump.
Refer to “Adjusting Water Flow using ∆T
(Delta-T) ” on page 6 for particular discharge
temperatures. Please note - Temperatures shown when
unit is in “HEA” mode only; “ACH” and “COO” discharge
temperatures not shown.
Incorrect
thermostat
setting
STEP 3:
Confirm thermostat is set above the current water
temperature. See “Setting Thermostats” on page 3 for
more information.
External
controller being
used
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.
Heating incorrect
body of water
STEP 6:
Confirm valves are correctly positioned to heat correct
body of water. If heating a spa that overflows into a
pool, confirm the spa is isolated when being heated.
Insufficient run
time
STEP 6:
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.