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Troubleshooting
I
f your unit does not operate, or simply does not heat
your pool water, Fault Codes on the front control
panel, can provide valuable clues as to what is wrong,
and may even indicate precisely what the problem is.
Always observe these codes before calling a service
representative. By reporting on the telephone the Fault
Codes that are showing, the service rep may be able
to solve the problem without the expense of a service
call.
A. UNIT IS RUNNING, BUT NOT HEATING
• Is water flow through the unit adequate? Check
the unit for obstructions, such as a clogged filter
pump strainer, a dirty filter, or valves not posi-
tioned correctly.
• Is the ejected air from the unit 8°–10°F cooler than
incoming air? If so, the unit is extracting heat from
the air and transferring it to the pool.
• Is water condensing on the evaporator and inter-
nal copper pipes? This is also evidence of heat
removal from the air. When the air is cool with low
humidity, condensation may not be evident.
• How long has the unit been operating? During ini-
tial pool heating in cold weather, it may require a
week to elevate the water temperature to a com-
fortable level. Normally, it takes about 4 days.
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.
• Is airflow through the unit being obstructed?
Restrictions such as shrubbery, tall grass, dirty
coils, or any other obstruction to airflow will reduce
performance.
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 capaci-
ty 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 gen-
erally warmer.
•
Is the pool blanket/cover being used?
Unblanketed pools can lose up to 10 degrees per
night compared to 4 degrees or fewer when a
blanket is used. Without a blanket, the total heat
g
ained 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.
• Is the thermostat setting and the Pool/Spa setting
correct? Verify that the temperature has been
properly set on the thermostat, and that it is high-
er 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.
• Is the Heat Light ON? If not, then the thermostat
setting is not higher than the temperature of the
water. Raise the thermostat setting.
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:
a. Use a pool chemistry test kit to confirm there is no
chlorine in the condensation. Or,
b. 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: The heat pump pool heater will not run when
the Remote position is selected on the Pool/Spa
selector switch and there is no remote control sys-
tem attached.
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