TROUBLESHOOTING FLOWCHART
Does the display read : "FS" ?
Does the display read : "FS" ?
No
28
Heat Pump Running... but is it Heating?
(Assumes Heating Indicator Light is Illuminated)
No
HEAT ONLY MODELS: "FS"
HEAT ONLY MODELS: "FS"
display ed indicates air
display ed indicates air
temperature may be too low to
temperature may be too low to
support the heater's
Yes
operation. Heater will remain in
operation. Heater will remain in
def rost until air temperature
def rost until air temperature
HEAT-COOL MODELS:"FS"
indicates heater is def rosting.
HEAT-COOL MODELS:"FS"
indicates heater is def rosting.
HEAT ONLY MODELS: Has the air
HEAT ONLY MODELS: Has the air
temperature remained abov e
temperature remained abov e
38ºF f or sev eral hours and "FS"
has been display ed throughout
38ºF f or sev eral hours and "FS"
has been display ed throughout
HEAT-COOL MODELS: Has "FS"
HEAT-COOL MODELS: Has "FS"
remained display ed longer than
remained display ed longer than
5-minutes (If y es, shut heater
5-minutes (If y es, shut heater
No
HEAT ONLY MODELS: Ambient
conditions too cold to operate
HEAT ONLY MODELS: Ambient
conditions too cold to operate
heater.
heater.
HEAT-COOL MODELS: "FS"
HEAT-COOL MODELS: "FS"
display ed f or 5-minutes or less
display ed f or 5-minutes or less
indicates normal def rost
indicates normal def rost
operation.
operation.
Problem
Problem
Solved.
Solved.
START
START
Is the air being discharged
out of the top of the heater 9-12
Is the air being discharged
out of the top of the heater 9-12
degrees cooler than the
degrees cooler than the
outside air?
outside air?
support the heater's
rises.
rises.
the period?
the period?
of f .)?
of f .)?
Yes
Call AquaCal
Call AquaCal
for Assistance:
for Assistance:
800-786-7751.
800-786-7751.
Yes
Is the pool pump timer
Is the pool pump timer
set to allow extended
operation of the heater?
set to allow extended
operation of the heater?
Extend the pool pump's
hours of operation to
Extend the pool pump's
hours of operation to
accommodate
accommodate
additional heater run
additional heater run
time required in cooler
time required in cooler
conditions.
Yes
conditions.
Is the heater
Is the heater
perf orming
adequately ?
perf orming
No
adequately ?
Problem
Problem
Solved.
Solved.
No
Yes