I pg 30
Pool Heat Pump
Code
Problem - Action / Remedy
FS, DEF, FS4
Problem:
Normal defrost cycle. The fan blades are turning, but the
compressor has stopped. For Electroheat SubZero and Reversible
model, the fan blades do not turn but the compressor runs.
Action / Remedy:
Normal during defrost duration.
Atmospheric conditions as well as the pool water temperature should
not be below the minimum operating temperatures as stated below
in order to obtain efficiency and avoid codes from appearing on the
electronic control temperature display ; these codes are not generally
a problem with the pool heat pump at these conditions and is not
covered under warranty.
If temperatures are below the minimum temperatures the pool heat
pump should not be operated and must be switched off.
For Electroheat SubZero and Reversible (XLR) units, they will
automatically stop without human intervention.
Model
Atmospheric
conditions
must be above
Pool water
temperature
must be above
Electroheat SubZero
32°F (0°C)
50°F (10°C)
Reversible (XLR)
43°F (6°C)
65°F (18°C)
All others
52°F (11°C)
65°F (18°C)
For Electroheat SubZero model: If the unit carries out 5 consecutives
defrost cycles every 15 minutes or less, the pool heat pump is then
put into protection mode (FS4). During this mode, the fan blade turns
for 30 minutes in order to cool the evaporator. The pool heat pump
restarts automatically when the external temperature is at: 34˚F (1˚C).
For Reversible (XLR) Model: If the unit performs 4 consecutive cycles
(heating and defrost) within 1-hour, the unit goes into protection
mode and alternately displays the water temperature and the DEF
code. The fan motor runs for 30 minutes to cool the evaporator
and then stops. The compressor is always off. The unit restarts
automatically when the outside temperature is 43°F (6°C) and more.
If the code stays on permanently:
- Ensure the evaporator is clean. If not
switch the unit OFF from
the circuit breaker
(fuse) and use a garden hose to lightly clean
the evaporator, then allow it to dry before re-starting the pool heat
pump to avoid premature ice build up on the evaporator.
- Ensure installation instructions have been followed, Improper
installation, e.g. no air circulation could lead to the pool heat pump
continually going into defrost mode and the installation will need to
be corrected by the owner.
