Hayward HP50951T Guide D'installation Et D'utilisation page 20

Display Malfunction
No power to heat pump
(blank)
Unit will not turn on
High Pressure Switch,
E01
circuit open.
Low Pressure Switch,
E02
circuit open.
E03 Flow Switch circuit open
E05
Water temperature
freeze protection
E06
Unit water temperature
rise to great
E07
Freeze up during
cooling mode
E19
Primary anti-freezing
protection heating mode
E29
Primary anti-freezing
protection heating mode
Inlet or Outlet
P01, P02
temperature sensor
failure
P04
Ambient temperature
sensor failure
P05, P15
Coil temperature
sensors failure
P07
Suction temperature
sensor failure
P081
Discharge temperature
sensor failure
P082
Discharge temperature
out of range
PP
Pressure sensor failure
Table 6: Display Code Index
Possible Cause
Tripped circuit breaker/
no power supply
Faulty electrical
component
Display module failure
Low water flow
High water temp
Air flow obstruction
Low Ambient
Temperature cutoff
Unit low on refrigerant
Low or no water flow or
remote on/off in use
Water freeze warning
activated
Low water flow
Low water flow
Ambient temperature too
low for operation
Ambient temperature too
low for operation
Sensor short circuit, open
circuit or not connected
Sensor short circuit, open
circuit or not connected
Sensor short circuit, open
circuit or not connected
Sensor short circuit, open
circuit or not connected
Sensor short circuit, open
circuit or not connected
Compressor overloaded
Sensor short circuit, open
circuit or not connected
USE ONLY GENUINE REPLACEMENT PARTS
Information
Check breaker and ensure that the unit is
properly installed.
Call for service.
Call for service.
Check water flow to heat pump. Ensure pool
pump is on.
Clean your filter
Make sure all valves are fully open and
bypass valve is closed
Turn off other water flows; fountains, etc.
Check pool temp. Confirm within allowable
limits for heating and cooling.
Call for service.
Remove debris and other items restricting air
flow to heat exchanger
Wait for outside temperature to reach 20°F.
Call for service.
Check water flow to heat pump. Ensure pool
pump is on.
Make sure all valves are fully open and
bypass valve is closed
Clean your filter
Unit can't keep water above freeze point
Call for service
Call for service
Call for service
Call for service
Call for service or replace sensor
Call for service or replace sensor
Call for service or replace sensor
Call for service or replace sensor
Call for service or replace sensor
Call for service or replace sensor
Call for service or replace sensor
51300002101 RevA
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