Hayward HML65TAC User Manual

Hayward/Summit Heat Pump
Troubleshooting Guide
© 2012 Hayward Industries

Hayward HML65TAC Specifications

General

Brand	Hayward
Model	HML65TAC
Category	Heat Pump
Language	English

Summary

Safety Warnings and Precautions

Essential Safety Guidelines

Covers high voltage dangers, refrigerant handling regulations, and need for qualified personnel.

Setting Up for Remote Operation

HeatPro Remote Configuration

Instructions for connecting 2-wire and 3-wire remotes to HeatPro models.

Remote Setup for Summit Platform

Summit Platform Remote Configuration

Guide for connecting remotes to Summit platform heat pumps via control board terminals.

LP Error Code Diagnosis and Troubleshooting

HP/HI Error Code Diagnosis and Troubleshooting

Water Sensor Error Codes (PO/OP, Pc/SH)

Defrost Sensor Error Codes (dPO/cOP, dPc/cSH)

Flow and Pressure Switch Errors (Flo/PS)

Blank Display Error Troubleshooting

Defrost Mode Errors (FS/deF)

Hot Gas Bypass (HGBP) System

HGBP Troubleshooting and Function

HeatPro Wiring Diagram

Summit/HeatMaster/EnergyTherm Wiring Diagram

Summit Setup Menu Guide

Flow Chart: PS/FLo Issues

Flow Chart: HI/HP Issues

Flow Chart: Water Sensor Errors (OP/PO, SH/Pc)

Flow Chart: Coil Sensor Errors (cOP/dPO, cSH/dPc)

Flow Chart: LP Issues

Alternative Leak Detection Methods