Enertech Global
96
EAV - EME/EMD Rev. A Models
Installation and Operations Manual
LED Name
LED Color
State
Explanation
1
Yellow
Not Lit
No Call for Aux Heat
Continuous On
Aux Heat Call, First stage Electric heat, 3KW, K1 Relay
2
Yellow
Not Lit
No Call for Aux Heat
Continuous On
Aux Heat Call, Second stage Electric heat, 30 sec delay, 3KW,
K2 Relay
3
Yellow
Not Lit
No Call for Aux Heat
Continuous On
Aux Heat Call, Third stage Electric heat, 60 sec delay, 3KW, K3
Relay
4
Yellow
Not Lit
No Heat or Cool Call, House Valve Deenergized
Continuous On
Heat or Cool Call, Load Valve Energized
5
Yellow
Not Lit
No Hot Water Call, Hot Water Valve Deenergized
Continuous On
Hot Water Call, Hot Water Valve Energized
6
Yellow
Not Lit
No Power to the Control Board
Continuous On
Power to the Control Board 12V DC
10 Error
Red
Not Lit
There are no Problems
Flashing
There is a lockout, Check HMI for Error codes
8 CPU
OK Green
Green
Not Lit
CPU is not operating
Flashing
CPU is operating and the Software operating on the Board
9
Com
Green
Green
Not Lit
No Communication from the HMI, ASB (Indoor) & TCB
(Outdoor) Boards
Flashing
Communication is Good between the HMI, ASB and TCB
Boards
7
Lin
Green
Green
Not Lit
This LED is not used
12
PWM 1
Yellow
Yellow
Varies Intensity
Off to On
•
Intensity of LED changes with pump speed, Reverse logic,
Led on Full is Pump Speed 0%, Led Off is Pump Speed
100%.
•
LED’s 11 & 12 are driven at the same speed.
11
PWM 0
Yellow
Yellow
Varies Intensity
Off to On
•
Intensity of LED changes with pump speed, Reverse logic,
Led on Full is Pump Speed 0%, Led Off is Pump Speed
100%.
•
LED’s 11 & 12 are driven at the same speed.
Indoor Unit LED Status
The Indoor Unit Board has twelve status LEDs for easy control and fault tracing.
Section 12: Troubleshooting
