Aquacal LTM0266 - Manual (Page 34)

Page 28
SECTION 5 - TROUBLESHOOTING
5.1 Symptom / Resolution Charts
WARNING - Failure to heed the following may result in injury or death.
Repairs must not be attempted by untrained unqualified individuals. If service is
deemed necessary, contact installing dealer or AquaCal AutoPilot Customer
Support.
WARNING - Failure to heed the following may result in injury or death.
Heat pump contains refrigerant under high pressure. Repairs to refrigerant circuit
must not be attempted by untrained or unqualified individuals. Service must be
performed only by qualified HVAC technicians. Recover refrigerant before opening
system.
CAUTION - Failure to heed the following may result in equipment damage.
Service by un-authorized personnel will void factory warranty.
Please note
– Troubleshooting charts are for Main Controller version 3.0.
SYMPTOM RULE OUT RESOLUTION
Control Panel Not Working
An external
controller is
being used
STEP 1:
See
section entitled “Configuring for External Controller”
on page 24 for more information on heat pump
controller functionality when using external controllers.
STEP 2:
Call heat pump installer or AquaCal AutoPilot Customer
Support for further assistance.
Heat Pump Not Running
No power to heat
pump
STEP 1:
Confirm heat pump display is illuminated.

If not, confirm the main breaker (located at the
power supply panel) and the disconnect switch
(located near the heat pump) are both turned ON.

If yes, proceed to next step.
Incorrect mode
setting
STEP 2:
Confirm correct mode is selected. See “Setting
Operating Mode
” on page 3. If heat pump still does not
turn on, proceed to next step.
Thermostat set
incorrectly
STEP 3:
Confirm that thermostat is set above / below current
water temperature depending on mode setting. See
“Setting Thermostats” on page 3. If heat pump still does
not turn on, proceed to next step.
Error displayed
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.