Emerson 1HDEZ-1521 Equipment Control Fault Codes

TROUBLESHOOTING

Equipment Control Fault Codes

Number Displayed

in 7 Segment LED Comfort Alert Fault

PTrip

1Long Run Time

2System Pressure Trip

3Short Cycling

4Locked Rotor

5Open Circuit

6Open Start Circuit

7Open Run Circuit

8Welded Contactor

9Low Voltage

System Communication Codes

E Communication Error

CFor 30 seconds after Communication

established, then blank

Troubleshooting

Contents

Main WARNING ! CAUTION ! Applications and Speci cations Page Equipment Control Page Page INSTALLATION Fig. 1 - Typical Connection of a Single Stage or Multi-Stage System *Factory installed jumper between RH and RC * Fig. 2 - Typical Connection of Heat Pump System up to 4 Stages Heat/2 Stages Cool Page Wiring Guide for Equipment Accessories Thermostat Tabs 12 INSTALLATION Thermostat Equipment Control Power System Page Communicating Devices Page Page USB Upload Faults Status Thermostat Summary Heat Pump Lockout (outdoor sensor required) Dual Fuel Setpoint (outdoor sensor required) Page Installation Test Check System Operation Navigating through your thermostat menus Clock and Display Settings Heating Program Cooling Program Thermostat Settings Page Page Page Page Reset Operation Page Equipment Control Fault Codes Page PART NO. 37-7343B