Enertech AV Series - Indoor Unit LED Status

Enertech Global, LLC 68
AV : MD/ME - Rev. A Models
Installaon and Operaons Manual
LED Name LED Color State 
1 Yellow
Not Lit No Call for Aux Heat
Connuous On
Aux Heat Call, First stage Electric heat, 3KW, K1
Relay
2 Yellow
Not Lit No Call for Aux Heat
Connuous On
Aux Heat Call, Second stage Electric heat, 30 sec
delay, 3KW, K2 Relay
3 Yellow
Not Lit No Call for Aux Heat
Connuous On
Aux Heat Call, Third stage Electric heat, 60 sec de-
lay, 3KW, K3 Relay
4 Yellow
Not Lit No Heat or Cool Call, House Valve Deenergized
Connuous On Heat or Cool Call, Load Valve Energized
5 Yellow
Not Lit No Hot Water Call, Hot Water Valve Deenergized
Connuous On Hot Water Call, Hot Water Valve Energized
6 Yellow
Not Lit No Power to the Control Board
Connuous 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 operang
Flashing
CPU is operang and the Soware operang on the
Board
9
Com
Green
Green
Not Lit
No Communicaon from the HMI, ASB (Indoor) &
TCB (Outdoor) Boards
Flashing
Communicaon 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 Inten-
sity
O to On
• Intensity of LED changes with pump speed,
Reverse logic, Led on Full is Pump Speed 0%, Led
O is Pump Speed 100%.
• LED’s 11 & 12 are driven at the same speed.
11
PWM 0
Yellow
Yellow
Varies Inten-
sity
O to On
• Intensity of LED changes with pump speed,
Reverse logic, Led on Full is Pump Speed 0%, Led
O 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.
Secon 10: Troubleshoong