24
The water heater will make an audible beep for notification of Alarms. The following
steps should be used in determining the Alarm code:
1) Press Blinking "Service"
Button on the Home Screen
Energy Saver Mode
Status
Settings
warm
hot
very hot
Mode
120°
Service
2) Press Blinking "alarms"
Button on the Service Screen
service
Tech Service Phone #: 800-995-0982
Product Model Number:
Product Serial Number:
Software Version Number: WH-HPW4-H2-00-81
Water Heater Test Off
alarms
3) Alarm will be listed on
alarms Screen*.
* A101 Alarm shown as an
example. During normal
operation, there should not
be any alarm listed under
“Current Alarms”.
The following page details
Alarm codes.
More information is available
by selecting alarm and then
pressing "more info".
Current Alarms
Alarm History
A101 Suction Temperature Sensor Failure
T300 Water Leak Sensor Not Installed
A200 High Water Temp! [ECO] Call Tech Service
A106 Discharge Temp Sensor Failure
A105 Evaporator Temp Sendor Failure
A104 Upper Heater Temp Sensor Failure
A103 Lower Heater Temp Sensor Failure
more
info
clear
history
clear
alarms
Trouble-Shooting
A101 Suction Temperature Sensor Failure
This fault code indicates the thermistor is
either in an open or shorted electrical state.
Call Tech Support
Current Alarm History of all Alarms.
(up to 6 Alarms)
Troubleshooting Tips
Save time and money! Review the chart on this page first and you may not need to call for
service.
Energy Saver Mode
Status
Settings
warm
hot
very hot
Mode
120°
Service
Troubleshooting Alarm Codes
