Hayward HeatPro® Heat Pro All Models - Page 36

Troubleshooting Guide, Unit does not start after installation, Unit is not running - area code

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Heat Pump Pool / Spa Heater Owner's Manual Troubleshooting Guide First check the installation of the unit to assure it is installed following the recommendations detailed in the installation guide. Check the electrical hook-up. Make sure the breaker or disconnect is sized correctly and is on. Verify that the wiring is per the National Electric Code (see Electrical Specifications section.) A second troubleshooting chart containing additional information is available at the end of the owner's manual. Unit does not start after installation: • If the heat pump pool heater was exposed to subfreezing temperature during shipment, the lowtemperature switch may be deactivated. The unit must then be exposed to ambient air temperatures above 48°F and direct sunlight for several hours in order to activate the switch and allow start-up of the unit. Unit is not running: • Check for the power light or any display on a digital thermostat. If the light is not on, check the breaker or disconnect box. Are fuses good? • Make sure the filter pump is on. The heat pump will not operate until the filter pump is flowing an adequate amount of water through the unit. Make sure the pool filter is clean (see section Flowrate.) • If the water pressure is low, you may need to adjust the water pressure switch (see section Installation of Heater Below Pool Surface) • Check the thermostat. If the filter pump is flowing water through the unit, turn up the thermostat and see if the unit comes on. • Make sure the 5-minute time delay, which protects the compressor, has timed-out. • Check the outside ambient temperature. Unit will not operate when the ambient temperature is below 45° F If the heat pump pool heater is installed in an area where the air temperature will fall below 44°F (+/- 3°F), the unit will shut off at these lower temperatures. In addition, if the relative humidity is high, some frosting of the evaporator may occur. As higher air temperatures return to the area, the unit will come back on. 35

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Heat Pump Pool / Spa Heater Owner’s Manual
35
Troubleshooting Guide
First check the installation of the unit to assure it is installed following the
recommendations detailed in the installation guide.
Check the electrical hook-up. Make sure the breaker or disconnect is sized correctly and is
on. Verify that the wiring is per the National Electric Code (see Electrical Specifications
section.)
A second troubleshooting chart containing additional information is available at
the end of the owner’s manual.
Unit does not start after installation:
•
If the heat pump pool heater was exposed to subfreezing temperature during shipment, the low-
temperature switch may be deactivated.
The unit must then be exposed to ambient air
temperatures above 48
°
F and direct sunlight for several hours in order to activate the switch and
allow start-up of the unit.
Unit is not running:
•
Check for the power light or any display on a digital thermostat.
If the light is not on, check the
breaker or disconnect box. Are fuses good?
•
Make sure the filter pump is on. The heat pump will not operate until the filter pump is flowing
an adequate amount of water through the unit. Make sure the pool filter is clean (see section
Flowrate.
)
•
If the water pressure is low, you may need to adjust the water pressure switch (see section
Installation of Heater Below Pool Surface
)
•
Check the thermostat. If the filter pump is flowing water through the unit, turn up the thermostat
and see if the unit comes on.
•
Make sure the 5-minute time delay, which protects the compressor, has timed-out.
•
Check the outside ambient temperature.
Unit will not operate when the ambient temperature is
below 45
°
F
If the heat pump pool heater is installed in an area where the air temperature will fall below 44
°
F
(+/- 3
°
F), the unit will shut off at these lower temperatures.
In addition, if the relative humidity
is high, some frosting of the evaporator may occur.
As higher air temperatures return to the area,
the unit will come back on.