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How many hours per day is the unit operating?
Remember that the heat pump pool heater only
operates while the pool pump is running. Set the
time clock to permit 24 hour per day operation. After
the desired temperature is reached, return the unit to
normal operation of 8–10 hours per day.
NOTE: If the pool pump and heat pump pool heater
shut OFF before the water temperature is raised to
the desired level, you must lengthen the running
time of both. To do this, reset the time clock dial
for the longer running time, or manually operate the
pump with the timer override switch. Since the unit
capacity and efficiency are both greater at higher
ambient air temperatures, run time should be set to
take advantage of all daylight hours, when the air is
generally warmer.
• Is airflow through the unit being obstructed?
Restrictions such as shrubbery, tall grass, dirty
coils, or any other obstruction to airflow will reduce
performance.
• Is the pool blanket/cover being used?
Unblanketed pools can lose up to 10°F (5.5°C)
per night compared to 4°F (2.2°C) or fewer when
a blanket is used. Without a blanket, the total heat
gained during the day can be lost overnight.
• Are rapid heat losses occurring in some other way,
such as high wind, spillage, rainfall, flow through
solar panels at night, or a high water table?
B. UNIT IS NOT RUNNING
• Is the temperature display ON? If not, the circuit
breaker may be shut OFF or tripped. Reset the
breaker by switching it OFF, and then back ON.
Verify that the breaker is set and operating
properly before calling for service.
• Are the Pool/Spa settings correct? Verify that
the temperature has been properly set on the
thermostat, and that it is higher than the current
water temperature.
• Have you waited approximately 5 minutes for the
time delay? After the unit has been running and
then shut OFF for any reason, there is a delay
before operation can begin again. The display will
read “Comp Start Delay” when this 5 minute delay
is active.
NOTE: The heat pump pool heater will not run
when the Remote position is selected on the Pool/
Spa control and there is no remote control system
attached.
C. CONDENSATION SEEMS EXCESSIVE
Heat pump pool heaters can produce a large amount
of condensation (water) during operation. If you
suspect that the unit is leaking:
• Shut the unit OFF and leave the filter pump
running 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.
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