Rheem HB Series Use & Care Manual page 19

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