28
TROUBLESHOOTING FLOWCHART
START
Is the air being discharged
out of the top of the heater 9-12
degrees cooler than the
outside air?
START
Is the air being discharged
out of the top of the heater 9-12
degrees cooler t han the
outside air?
Is the pool pump timer
s et to all ow ex t ended
operation of the heater?
Is the pool pump timer
s et to all ow ex tended
operation of the heater?
Yes
Extend the pool pump's
hours of operation to
accommodate
additional heater run
time required in cooler
conditions.
Extend the pool pump's
hours of operation to
accommodate
additional heater run
time required in cooler
conditions.
Is the heater
perf orming
adequately?
Is the heater
performing
adequately?
Problem
Solved.
Problem
Solved.
No
Yes
Does the display read : " FS" ?
Does the displa y read : " FS" ?
No
Yes
HEAT ONLY MODELS: "FS"
displayed indicates air
temperatu re may be too low to
support the heater's
operation. Heater w ill re main in
def rost until air temperature
rises.
HEAT -COOL MODELS:"FS"
indicates heater is def rosting.
HEAT ONLY MODELS: "FS"
display ed indicates air
tempera ture may be too low to
support the heater's
operation. Heater w ill remain in
defrost until air temperature
rises.
HEAT-COOL MODELS:"FS"
indicates heater is def rosting.
Call AquaCal
for Assistance:
800-786-7751.
Call AquaCal
for Assistance:
800-786-7751.
No
Yes
No
Yes
No
Problem
Solved.
Problem
Solved.
HEAT ONLY MODELS: Ambient
conditions too cold to operate
heater.
HEAT-COOL MODELS: "FS"
displayed f or 5-minutes or less
indicates normal defrost
operation.
HEAT ONLY MODELS: Ambient
conditions too cold to operate
heater.
HEAT-COOL MODELS: "FS"
displayed for 5-minutes or less
indicates normal defrost
operation.
HEAT ONLY MODELS: Has the air
temperature remained above
38ºF f or s ev eral hours and "F S"
has been displayed throughout
the period?
HEAT-COOL MODELS: Has "FS"
remained displayed longer than
5-minutes (If yes, shut heater
of f .)?
HEAT ONLY MODELS: Has the air
temperature remained above
38ºF f or sev eral hours and "FS "
has been displayed throughout
the period?
HEAT-COOL MODELS: Has "FS"
remained displayed longer than
5-minutes (If y es, shut heater
of f .)?
Heat Pump Running... but is it Heating?
(Assumes Heating Indicator Light is Illuminated)