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EHC STATUS LEdS
EHC STATUS LED
Flash
1
1 heater relay energized
2
2 heater relays energized
3
3 heater relays energized
4
4 heater relays energized
5
5 heater relays energized
NOTE: Standby mode STATUS LED will flash 1 time per
second
NOTE: On a call for heat, STATUS LED will flash per
the table above every 4 seconds
EHC FAULT COdES
EHC Fault
LED
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
Configuration error
6
8
Blower interlock relay stuck open or stuck closed
NOTES:
1) Confirm heater model and kw jumper match
Unit LED
1 Flash
Normal
Rapid
Communication Busy Error
Off
No power
AM7A0C36H31-SF-1A
Description
(1)
14
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