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Diagnostic Information
Error
Screen Text
Code
high
4
temperature
protection
temperature
5
sensor error
memory
7
error
memory
8
error
Priority
Message
0: high
Type
1: middle
2: low
0
critical
0
critical
0
critical
0
critical
Condition
All stages of heat
High temperature
are turned off by
protection when
safety relay.
outdoor ambient
temperature
This error is displayed
exceeds 96°F
on notification
(35.6°C)
screen.
Indoor temp is displayed
Local temperature
as "--" on the home
sensor is out
screen. This will
of range -40°F
STOP all temperature
to 158°F
related operation.
There is a finite
All stages of heat
difference between
are turned off by
main thermistor
safety relay.
and sub-thermistor
This error is displayed
which is greater
on notification
than 5°F.
screen.
System will restore
using to Energy Star
defaults and resume
EEPROM error
operations.
(Power ON)
This error is displayed
on notification
screen.
System will operate in
normal mode operation
EEPROM error
until power off.
(Operating)
This error is displayed in
notification screen.
30
System Action
Action to Clear
Once temperature
drops below 96°F
(35.6°C), the
system resume
operation.
Either thermostat
will have to be
replace or if the
sensor returns to
normal operating
range, the error
message will
automatically
clear and
the system
will resume
operation.
Thermostat
will need to be
replace.
/ Recovery
Condition
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