Solving Problems - TTI Pool Heat Pump Installation Manual

Error
Unit does not run.
The actual water
temperature increases
when the compressor
starts.
The heat pump runs
but does not generate
enough heat.
The heater seems to
have a water leak.
The defrost sensor
temperature decreases
when the compressor
starts.
The digital control
displays "888".
Only the fan is running.

SOLVING PROBLEMS

Possible Causes
1. Power is not supplied to the
heat pump.
2. No demand for heat.
3. Anti cycle delay (5 minutes).
Water is not circulating in the
right direction.
1. Water is not circulating in
the right direction.
2. The heat loss of the pool
exceeds the heating capacity
of the heat pump.
3. The pool size exceeds the
specified capacity of the model
selected.
1. Normal - water caused by
condensation.
2. Water leak.
Normal.
The digital display is exposed
to the sunlight.
1. Defrost mode.
2. Anti cycle delay (5 minutes).
3. Defective compressor.
Possible Solutions
1. Make sure that the heat pump
electrical supply line breaker is
ON.
2. Make sure that the
temperature control is set at a
proper level. Adjust as required.
3. Whenever the compressor is
stopped, the digital control
imposes a minimal time delay of
5 minutes before restarting it to
allow gases to calibrate.
Check connections.
1. Check connections.
2. See "Heat Pump Sizing"
section on page 4.
3. Use a more powerful model or
use more than one heat pump.
1. No action required.
(Install a derivation drain if
necessary.)
2. To verify if it is a leak, you
need to stop the pool heat pump
until all the condensation has
disappeared. Verify if there is
water remaining around the
machine after 24 to 48 hours.
(See p. 18 Q2)
No action required.
Make shade on the display to
distinguish lights that are ON
from those that are OFF.
1. No action required.
2. No action required.
3. Call an authorized service
technician.
24