Trane AM7A0C36H31SA - EHC Status and Fault Codes; EHC Status LED Indicators; EHC Fault Code Descriptions

AM7A0C36H31-SF-1A 14
Flash
1
2
3
4
5
NOTE: On a call for heat, STATUS LED will flash per
the table above every 4 seconds
EHC STATUS LED
1 heater relay energized
2 heater relays energized
3 heater relays energized
4 heater relays energized
5 heater relays energized
NOTE: Standby mode STATUS LED will flash 1 time per
second
Unit LED
1 Flash Normal
Rapid Communication Busy Error
Off No power
EHC STATUS LEDS
EHC FAULT CODES
EHC F
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LED Description
OFF Nofault
1 Internalcommunicationerror
2 Heatrelaystuckclosed
3 Heatrelaystuckopen
4 Non‐cyclinglimit(NTCO)orelementopen
5 Cyclinglimit(CTCO)open
6
Configurationerror
(1)
8 Blowerinterlockrelaystuckopenorstuckclosed
1) Confirm heater model and kw jumper match
NOTES: