Pentair ThermalFLo HP, Руководство пользователя, Страница: 47 / 56

39
Installation and User’s Guide
Section 5
Troubleshooting
Use the following troubleshooting information to resolve possible problems with your heat pump.
WARNING — RISK OF ELECTRICAL SHOCK OR ELECTROCUTION.
Improperly installation will create an electrical hazard which could result in death or serious injury
to pool users, installers, or others due to electrical shock, and may also cause damage to property.
Do NOT attempt any internal adjustments inside the heater.
1. Keep your hands and hair clear of the fan blades to avoid injury.
2. If you are not familiar with your pool filtering system and heater:
a. Do NOT attempt to adjust or service without consulting your dealer, professional pool or air
conditioning contractor.
b. Read the entire Installation & User’s Guide before attempting to use, service or adjust the
heater or pool filtering system. The water pressure switch should be adjusted to turn the
heater off when the pump is off. Setting the switch to close at too low of a flow can damage the
appliance. Adjust the switch to turn the heater off, not on.
Note: Turn off power to unit prior to attempting service or repair.
Problems and Corrective Action
Fault Condition Possible Cause Corrective Action
HIGH WATER TEMP Alarm: Water
temperature above 108° F.
Bad Thermistor or bad control board.
Test water temp to see if it is correct, if not, use the 10k
ohm resistance test to verify thermistor. If bad, replace
thermistor. If good, replace control board.
LOW WATER TEMP Alarm : Water
temperature below 40° F.
Bad Thermistor or bad control board.
Test water temp to see if it is correct, if not, use the 10k
ohm resistance test to verify thermistor. If bad, replace
thermistor. If good, replace control board.
1. Water circulation pump not on. Verify water circulation pump is on.
2. Insufficient water flow.
Dirty or worn filters or clogged lint traps. Verify filter is
clean, backwash if necessary to clean entire filter system
or replace filter element if needed. Inspect & clean pump
impeller. Adjust Plumbing valves. Repair suction air
leaks.
3. External bypass open.
Make sure external water bypass around heat pump is
closed.
4. Bad water pressure switch.
With water flowing, check resistance of water pressure
switch, if open, replace switch.
REMOTE POOL SPA Alarm: Pool and
Spa remote inputs are simultaneously
energized.
Remote pool, spa, and common spade terminals
on the back of the control board are all
energized. Modify automation control output so that only either the
pool and common or spa and common terminals are
energized.
WATER THERM SHORT Alarm: Water
temperature sensor circuit is shorted.
Bad Thermistor or bad control board.
Use the 10k ohm resistance test to verify thermistor.
If shows shorted, replace thermistor. If good, replace
control board.
WATER THERM OPEN Alarm: Water
temperature sensor circuit is open.
Bad Thermistor, or bad control board.
Use the 10k ohm resistance test to verify thermistor.
If shows open, replace thermistor. If good, replace
control board.
SUCTION TH SHORT Alarm: Defrost
refrigerant temperature sensor circuit is
shorted. Bad Thermistor or bad control board.
Use the 10k ohm resistance test to verify thermistor.
If shows shorted, replace thermistor. If good, replace
control board.
SUCTION TH OPEN Alarm: Defrost
refrigerant temperature sensor circuit is
open. Bad Thermistor or bad control board.
Use the 10k ohm resistance test to verify thermistor.
If shows an open, replace thermistor. If good, replace
control board.
LOW WATER FLOW Alarm: The
pressure switch sensing water flow is
open.
*
*
*
*
*
*
* Refer to 10K Ohm Temperature Resistance Chart on page 42.