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TROUBLESHOOTING FLOWCHART
Heat Pump Fails to Operate
Is the heater
operating correctly?
Is the heater
operating correctly?
Is the heater
operating correctly?
Is the heater
operating correctly?
The heater is equipped
with a five minute
delay. Wait at least
five minutes to allow
the timer to reset.
The heater is equipped
with a five minute
delay. Wait at least
five minutes to allow
the timer to reset.
Contact
AquaCal
for Assistance at
800-786-7751
Contact
AquaCal
for Assistance at
800-786-7751
Problem
Solved.
(Verify water
temperature
settings are as
desired.)
Problem
Solved.
(Verif y water
temperature
settings are as
desired.)
Yes No
No
NoYes
Yes
Is the unit operating
correctly?
Is the unit operating
correctly?
Yes
No
Is the Pool or Spa
thermostat selected f or
the correct body of
water to be heated,
and have you tried
selecting a higher
temperature setting?
Is the Pool or Spa
thermostat selected f or
the correct body of
water to be heated,
and have you tried
selecting a higher
temperature setting?
Display is illuminated. If
"FLO" is displayed,
check to be sure the
circulating pump is
operating and the f ilter
is clean. There may
also be a valv e
positioned incorrectly.
Be certain water is
flowing through the
heater.
Display is illuminated. If
"FLO" is dis play ed,
check to be sure the
circulating pump is
operating and the f ilter
is clean. There may
also be a v alve
positioned incorrectly.
Be certain water is
flowing through the
heater.
If not, ensure t he main
breaker (located at the
power supply panel)
and the disconnect
switch (located near
the heat pump) are
both turned ON.
If not, ensure the main
breaker (located at the
power supply panel)
and the disconnect
switch (located near
the heat pump) are
both turned ON.
START
Is the Display Illuminated?,
START
Is the Display Illuminated?,