Hayward HeatPro® Heat Pro All Models - Page 18

Lights Heat Pump Pool / Spa Heater Owner's Manual Troubleshooting Guide for DIGITAL Thermostat Control Run Heat (green) (green) Display Power (red) PST-1 & PST-4 only Problem No power to heat pump Possible Cause Solution Tripped circuit breaker/ no Check breaker and insure that the unit is properly power supply 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 • PS Water Pressure Switch Low or no water flow is closed. Ensure pool filter pump is on Outside temperature too cold. (Refer to page 7.) Normal operation for TCO function Turn off fountains, crawlers, etc. 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. • LP Low Pressure Switch Fan motor failure Call HAYWARD service department for info. Coil obstruction Call HAYWARD service department for info. Air flow obstruction Perform cleaning procedures described in this manual. Call HAYWARD service department for info. Low water flow Check water flow to heat pump. . Clean your filter . Make sure all valves are open Ensure pool filter pump is on Set unit to "ACP" if you have the heat / cool option. High water temp Refer to text on PST-5 control board.(pg 12) • HP High Pressure Switch Check pool temp. Wait until pool needs heat. Call HAYWARD service department for info. Refrigerant is overcharged Have a professional adjust to proper levels Contact HAYWARD for service info. Switch Failure Contact HAYWARD for service info. 2-speed filter pump Make sure speed is set to "high" SF • Temperature sensor Failure 120 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. unless it does not disappear. Ignore • RHD Remote device is controlling the unit. Refer to owner's manual of the remote device. If you do not have a remote device connected, call HAYWARD for service info. 17