26
Troubleshooting
Before troubleshooting the system, ensure that:
• All mechanical and electrical connections are
secure and tight
• All system wiring is correct
• Fuse is not blown (3A Automotive “ATO” type fuse
for 24VAC)
• That a system ground is properly connected to the
heater. Nuisance shutdowns are often caused by a
poor or erratic ground.
The service display can be accessed by pressing and holding the UP and MENU buttons for 3+ seconds. The
service display does not affect operation of the unit which continues to operate in the background. When in this
mode, pressing the UP or DOWN buttons will toggle through the various information reported. Some items (Fault
History and Sensor Temperatures) have multiple values (press UP or DOWN buttons to scroll through the addi-
tional information). The service display mode may be exited to return to the previous display be pressing the UP
and MENU buttons or it will automatically be exited if no button is pressed within 60 seconds.
The following operational status messages are displayed in Pool, Spa, and Remote operating modes.
Table E: Operational Status Messages
Message
Description
Recommended Troubleshooting
Comp Start Delay
Notification that the compressor is under a
5-minute delay before turning On. This can
be bypassed by pressing the UP and
DOWN buttons simultaneously.
Nothing wrong – just notification as to why the unit is not current-
ly operating.
Valve Chng Delay
Notification that the 3-way valves are being
commanded to change positions Pool to
Spa or Spa to Pool.
Nothing wrong – just notification as to why the unit is not current-
ly operating.
WPS Closed
3-way valves not switched because water
flow switch still closed.
Check settings – pump operation Disabled?
Defrost
Unit is performing a Defrost cycle.
Nothing wrong – just notification as to why the unit is not current-
ly operating.
Heating
Unit is operating and running a heating
cycle.
N/A
Cooling
Unit is operating and running a cooling
cycle.
N/A
External Heat
The AUX Mode setting is set to EXTERNAL
HEAT meaning an external device (solar
heating system) is running 1st stage instead
of the heat pump.
Verify desired settings.
Outside Lockout
The compressor is not running because the
ambient temperature is too cold as meas-
ured by the Ambient sensor.
Verify Outside Lockout temperature setting.
Check Amb Temp sensor value in Installer sub-menu and
replace if value is inconsistent with ambient temperatures.
Disable this function in the Installer/Service Menu if Outside
Lockout is not desired.
No Demand
Heat/Cool demand has been satisfied and
the unit is in standby.
N/A
C. CONDENSATION SEEMS EXCESSIVE
Heat pump pool heaters can produce a large amount
of condensation (water) during operation. If you sus-
pect that the unit is leaking:
• Shut the unit OFF and leave the filter pump run-
ning to see if the water stops dripping. If the water
stops dripping, the unit is
not
leaking.
NOTE:
Use a pool chemistry test kit to confirm there
is no chlorine in the water.
Summary of Contents for 9350HC
Page 8: ...8 Fig 2 Hurricane Tie Down Instructions ...
Page 31: ...31 Fig 9 Pool Piping for Heat Pump Pool Heater and Gas Pool Heater ...
Page 34: ...34 Wiring Diagram 208V 230V Three Phase Digital Models ...
Page 35: ...35 Wiring Diagram 460V Three Phase Digital Models 460V 3PH 60 Hz ...
Page 36: ...36 Wiring Diagram 380V Three Phase Digital Models ...
Page 39: ...39 ...
