Hayward HeatPro, Owner'S Manual

Page: 18 / 43

Heat Pump Pool / Spa Heater Owner’s Manual
17
Troubleshooting Guide for
DIGITAL
Thermostat Control
Lights
Hea
t
(green
)
Po
w
er
(re
d)
PST-1 & PST-4
onl
y
Run (
green)
Display
Problem
Possible
Cause Solution
No power to heat pump
Tripped circuit breaker/ no
power supply
Check breaker and insure that the unit is properly
installed.
(blank) Faulty electrical component Call HAYWARD service department for info.
• •
Call HAYWARD service department for info.
•
High / Low Pressure Switch
Outside temperature too
cold.
Check ambient temperature, if lower than 50 F,
Unit will not run
Check water flow to heat pump. .
Clean your filter
. Make sure all valves are open and bypass valve
is closed.
Ensure pool filter pump is on
Normal operation for TCO function
•
PS
Water Pressure Switch Low or no water flow
Turn off fountains, crawlers, etc.
Outside temperature too
cold. (Refer to page 7.)
Check ambient temperature. Wait for warmer
temperature (refer to page 7.)
Loss of refrigerant Call HAYWARD service department for info.
Switch failure Call HAYWARD service department for info.
Fan motor failure Call HAYWARD service department for info.
Coil obstruction Call HAYWARD service department for info.
Perform cleaning procedures described in this
manual.
•
LP
Low Pressure Switch
Air flow obstruction
Call HAYWARD service department for info.
Check water flow to heat pump. .
Clean your filter
. Make sure all valves are open
Low water flow
Ensure pool filter pump is on
Set unit to “ACP” if you have the heat / cool
option.
Refer to text on PST-5 control board.(pg 12)
Check pool temp. Wait until pool needs heat.
High water temp
Call HAYWARD service department for info.
Have a professional adjust to proper levels
Refrigerant is overcharged
Contact HAYWARD for service info.
Switch Failure Contact HAYWARD for service info.
•
HP
High Pressure Switch
2-speed filter pump Make sure speed is set to “high”
SF
•
120
Temperature sensor Failure Contact HAYWARD for service info.
•
888
Thermostat reset Normal operation
Temporary display. Shows for 1-2 secs when the
unit is first turned on.
•
C=1
Internal board identification
Temporary display. Appears intermittently. Ignore
unless it does not disappear.
Refer to owner’s manual of the remote device.
•
RHD
Remote device is
controlling the unit.
If you do not have a remote device connected, call
HAYWARD for service info.