19
Troubleshooting Alarm Codes
The Following Alarms will not Allow any Heating of Water.
Code Possible Causes What to Do
A008 Heater is not full of water Refer "To Fill the Water Heater" section of
this manual
A200 High Temperature ECO has tripped Refer to "Safety Control" section of this
manual
Improper Input Voltage supplied Refer to "Electrical Connections" section of
this manual
A103 Improperly installed or malfunctioning
Thermistor
Refer to "Replacement Parts" and/or
"Service" sections of this manual
A104 Improperly installed or malfunctioning
Thermistor
Refer to "Replacement Parts" and/or
"Service" sections of this manual
D001 Communication error between display and
control board
Refer to "Replacement Parts" and/or
"Service" sections of this manual
The Following Alarms will not Allow Heating using the Heat Pump System.
Code
Possible Causes What to Do
A101 Improperly installed or malfunctioning
Thermistor
Refer to "Replacement Parts" and/or
"Service" sections of this manual
A102 Improperly installed or malfunctioning
Thermistor
Refer to "Replacement Parts" and/or
"Service" sections of this manual
A105 Improperly installed or malfunctioning
Thermistor
Refer to "Replacement Parts" and/or
"Service" sections of this manual
A106 Improperly installed or malfunctioning
Thermistor
Refer to "Replacement Parts" and/or
"Service" sections of this manual
A004 Malfunctioning Compressor Refer to "Replacement Parts" and/or
"Service" sections of this manual
T005/A005
Refrigerant Levels Incorrect Refer to "Replacement Parts" and/or
"Service" sections of this manual
Malfunctioning Compressor Refer to "Replacement Parts" and/or
"Service" sections of this manual
T006/A006
Air Filter Clogged Refer to "Routine Preventative Mainte-
nance" section of this manual
Evaporator Fan Malfunction Refer to "Replacement Parts" and/or
"Service" sections of this manual
Refrigerant Levels Incorrect Refer to "Replacement Parts" and/or
"Service" sections of this manual
T007/A007
Malfunctioning Compressor Refer to "Replacement Parts" and/or
"Service" sections of this manual
Refrigerant Levels Incorrect Refer to "Replacement Parts" and/or
"Service" sections of this manual
A500 Electronics Malfunction Refer to "Replacement Parts" and/or
"Service" sections of this manual