41
A994_O Compressor Parameter Fault Disabled while active
A998_O Fan Motor Parameter Fault Disabled while active
T011_O Pressure Relief Valve Stuck Closed Disabled while active
T012_O Pressure Relief Valve Stuck Open Disabled while active
T116_O Suction Pressure Floodback Protection Operation as described in Suct Press Flood Control requirements.
T949_O Backup Ht -Amb Temp Too Low for HP Normal Operation Resumes when OAT>30F
T911_O Inverter Fault - Current Imbalance 3-strikes, permanent lockout
T913_O Contactor Not Closing 3-strikes, permanent lockout
T914_O Inverter Fault - DC Voltage Low 3-strikes, permanent lockout
T916_O Inverter Fault - Discharge Line Temp 3-strikes, permanent lockout
T917_O Inverter Fault - PIM Temp 3-strikes, permanent lockout
T918_O Inverter Fault - PFC Temp 3-strikes, permanent lockout
T921_O Inverter Fault - Comp. Overcurrent 3-strikes, permanent lockout
T922_O Inverter Fault - PIM Temp Foldback 3-strikes, permanent lockout
T923_O Inverter Fault - High Refrig Pressure 3-strikes, 4 hour lockout
T931_O Fan Fault Phase Over Current 3-strikes, permanent lockout
T932_O Fan Fault Phase Current Imbalance 3-strikes, permanent lockout
T933_O Fan Fault Motor Over/Under Speed 3-strikes, permanent lockout
T934_O Fan Fault U-Phase Over Current 3-strikes, permanent lockout
T935_O Fan Fault V-Phase Over Current 3-strikes, permanent lockout
T936_O Fan Fault W-Phase Over Current 3-strikes, permanent lockout
T937_O Fan Fault Module Over Current 3-strikes, permanent lockout
T938_O Fan Fault Loss of Phase 3-strikes, permanent lockout
T939_O Fan Fault Loss of Control 3-strikes, permanent lockout
T941_O Fan Fault Start Up Fault 3-strikes, permanent lockout
T942_O Fan Fault Module Temp High 3-strikes, permanent lockout
T943_O Fan Fault Module Over Temperature 3-strikes, permanent lockout
T944_O Inverter - Envelope Protection none
T945_O Inverter Fault - PFC Overcurrent 3-strikes, permanent lockout
T946_O Inverter Fault - DC Bus Overvoltage 3-strikes, permanent lockout, until DC voltage returns to normal
T947_O Inverter Fault - DC Bus Undervoltage 3-strikes, permanent lockout
T952_O Outside Temp Thermistor Failure algorithms default
T953_O Coil Temp Thermistor Failure Use TEMP_SST in Superheat Calc instead
T955_O Compressor Temp Thermistor Failure algorithms default
T957_O Low Refrigerant Pressure 3-strikes, 4 hour lockout
T958_O High Refrigerant Pressure 3-strikes, 4 hour lockout
T959_O Compressor Locked Rotor 3-strikes, permanent lockout
T961_O Discharge Temp Thermistor Failure algorithms default
T964_O Inverter Fault - PIM Over-temp 3-strikes, permanent lockout
T965_O Inverter Fault - PFC Over-temp 3-strikes, permanent lockout
T967_O Inverter Fault - Low Line Current Trip 3-strikes, permanent lockout
6. After setting the fault, conrm that the 3-strikes, permanent lockout
T971_O Compressor Lube Protection none
T972_O Compressor Discharge Temp High 3-strikes, permanent lockout
T974_O Line Current Trip 3-strikes, permanent lockout
T976_O Fan Phase Current Low Trip 3-strikes, permanent lockout
T977_O Fan Inrush Relay Not Closed 3-strikes, permanent lockout
T981_O Fan Overcurrent Trip 3-strikes, permanent lockout
T982_O Fan Overvoltage Trip 3-strikes, permanent lockout
T983_O Fan Undervoltage Fault 3-strikes, permanent lockout
T984_O Fan Locked Rotor Fault 3-strikes, permanent lockout
T986_O High Refrigerant Pressure Envelope 3-strikes, permanent lockout
T995_O IPM Overcurrent Trip 3-strikes, permanent lockout
T996_O Phase Current Low Trip 3-strikes, permanent lockout
T997_O High Side Overcurrent Trip 3-strikes, permanent lockout
T999_O Fan Motor Phase Imbalance 3-strikes, permanent lockout
Advanced operating status and diagnostic information is available through the EcoNet
TM
Control Center
that greatly enhances the ability to quickly and accurately diagnose system faults. For further assistance
for troubleshooting a system please see the Bluetooth Contractor's App or the Econect Help Pages at
myrheem.com.
9.0 DIAGNOSTICS & TROUBLESHOOTING
Diagnostics
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