ENVISION RESIDENTIAL INSTALLATION MANUAL
Microprocessor Control (cont.)
Thermostat Displays
Fault Flash
When using a TA32W01 or TP32W02 thermostat and
ComforTalk
When using a TP32U03, 04 or 05 thermostat and
The LED board on the front of the unit will display all lockouts. The Low Pressure LED will flash for a low pressure condition or a Comfort Alert fault. If the low pressure lockout was caused by Comfort Alert codes 4, 6 or 7, then the Comfort Alert will be flashing. If no Comfort Alert code is visible, then it is a low pressure lockout.
The following tables show the codes that will be displayed on the different ComforTalk and FaultFlash thermostats.
FaultFlash Thermostats
TA32W01 and TP32W02 Thermostats
Thermostat Display | Lockout Description | |
Lockout Code | ||
| ||
|
| |
2 Flashes | High Pressure Fault | |
3 Flashes | Low Pressure Fault | |
4 Flashes | Not Applicable | |
5 Flashes | Water Flow Fault | |
6 Flashes | Not Applicable | |
7 Flashes | Condensate Fault | |
8 Flashes | Voltage out of Range | |
9 Flashes | RPM Fault | |
10 Flashes | Comfort Alert Compressor | |
Module Fault | ||
|
ComforTalk Thermostats
TP32U03, TP32U04 and TP32U05 Thermostats
Thermostat Display | Lockout Description | |
Lockout Code | ||
| ||
|
| |
"High Pressure" or "E2" | High Pressure Fault | |
"Low Pressure" or "E3" | Low Pressure Fault | |
"E4" | Not Applicable | |
"Water Flow" or "E5" | Water Flow Fault | |
"E6" | Not Applicable | |
"Condensate" or "E7" | Condensate Fault | |
"Voltage Range" or "E8" | Voltage out of Range | |
"RPM" or "E9" | RPM Fault | |
"Comfort Alert" or "E10" | Comfort Alert Compressor | |
Module Fault | ||
|
Lockout code 10 - see Comfort Alert module to determine the specific flash code for compressor abnormalities.
These thermostats can be configured to display the lockout condition "text" or error number.
*A slow flash of 1 second on and off means the heat pump microprocessor
Lockout code 10 - see Comfort Alert module to determine the specific flash code for compressor abnormalities.
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