Transmitter
|
Receiver
|
Operating Condition
|
On
(Constant)
|
On
(Constant)
|
|
Off
|
Off
|
- Motor head not powered
- Wiring from motor head defective
|
Off
|
On
(Constant)
|
- Wiring to STB transmitter missing or defective
|
2 Flashes, Pause
(Repeat)
|
On
(Constant)
|
- Infrared beam not aligned
- Infrared beam obstructed
- STB receiver defective
|
2 Flashes, Pause
(Repeat)
|
Off
|
- Wiring to STB receiver missing or defective
- STB receiver defective
|
3 Flashes, Pause
(Repeat)
|
On
(Constant)
|
- STB receiver interference
|
4 Flashes, Pause
(Repeat)
|
On
(Constant)
|
- STB transmitter not sending pulses
|