Orbit Manufacturing 91912 Trouble Shooting, Symptom, Possible Causes of Problems, Correction

Section 9: Trouble Shooting

Symptom	Possible Causes of Problems		Correction
One or more stations do	1.	Faulty Solenoid	Replace solenoid
not turn on	2. Wire broken or not connected		Repair wire and check connections
	3.	Flow control stem screwed down, shutting valve off	Turn flow control stem counter-clockwise
			until desired flow is achieved
	4.	Programming is incorrect	Check to make sure the station in
			question is set to water with a program
Stations turn on when	1.	Water pressure is too high	Install a pressure reducer
they are not supposed to	2. More than one start time is programmed		Reduce the number of start times for that
			program
	3.	Stations are set to water with both programs	Set station duration to 0 for suspect program
One station is stuck	1.	Faulty valve	Check that valve is not installed backwards
on and will not shut off	2.	Particles of dirt or debris stuck in valve	Remove dirt or debris from valve
	3. Valve diaphragm faulty		Replace diaphragm
All stations do not turn on	1.	Transformer is defective or is not connected correctly	Check connections and outlet if NO A/C
			power persists replace transformer
	2. Programming is incorrect		Check Start Time and Watering Days
	3.	Timer is in OFF mode	Turn dial to AUTO
Timer will not power up	1.	Transformer is defective or is not connected correctly	Check connections and outlet if NO A/C
			power persists replace transformer
	2.	Timer is not all the way down on the docking port	Push down timer on docking port until back
			light turns on.
Stations continue to turn on and off	1.	More than one start time is programmed with overlapping schedules	Reduce the number of start times for that
when they are not programmed to			program
	2.	Excessive pressure	Install pressure reducer
Persistant Fault	1. Short in wiring or solenoids		Check wiring or replace solenoid

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