Orbit Watermaster 94028 User Manual

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PN 57004-24 Rev J

MODELS:

57004, 57006, 57008, 57012, 57122, 57254, 57256, 57258, 57252,

57292, 57294, 57296, 57606, 57332, 57344, 57346, 57348, 57342,

57334, 57336, 57338, 57298, 57392, 57396, 57384, 57386, 57388,

57382, 91024, 91026, 91028, 91016, 91012, 94004, 94006, 94008,

94002, 94024, 94026, 94028, 94022

INSTALLATION MANUAL/USER’S MANUAL

Sprinkler Timers by Orbit

®

MANUAL DE INSTALACIÓN / MANUAL DEL USUARIO

Controladores para sistemas de aspersión Orbit

®

07WTM002887 57004-24 rJ.qxd 2/13/07 11:51 AM Page 1

Questions and Answers:

B
benjamin86Aug 8, 2025
Why is the LCD display not working on my Orbit Watermaster 94028?
- D
  Dale HughesAug 8, 2025
  If your Orbit Timer's LCD is not displaying correctly, it might be due to a missing or low battery along with a lack of AC power. Try replacing the batteries and ensuring AC power is available. In some cases, the reset button may need to be pushed; if so, push it and re-enter your programs. Other possible causes include a power surge, faulty solenoid, short in the sprinkler wire (including the wire going to the pump), transformer not plugged in (for indoor models), permanent wiring issues (for outdoor models), or a main residential power outage. Check each of these to resolve the issue.
J
Jason DickersonAug 16, 2025
Why is my Orbit Watermaster 94028 Timer not watering properly?
- N
  Nathan TuckerAug 16, 2025
  If your Orbit Timer is causing watering problems, ensure that the rotary dial is set to "Auto." Also, make sure the main valve is turned on to supply water. Check the flow control stem on the valve to ensure it is not turned off. Verify that the Program Slide Switch is on the correct program (A, B, C) and that the sprinkler wire is properly connected to both the timer and the valve. Excessive water pressure can also cause issues, so consider installing a pressure reducer.
D
Devon MillsAug 25, 2025
What to do if LCD screen on Orbit Timer is blank due to wiring issues?
- G
  groachAug 25, 2025
  If your Orbit Timer is displaying a blank LCD screen, it may be due to a short in the sprinkler wire. Check the wire connections to resolve this. Also, if the sprinkler wire going to the pump is shorted, look for cuts in the wire or replace it.
E
Ellen MendozaAug 30, 2025
What to do if the Orbit Timer LCD is not working because of a faulty solenoid?
- W
  Wesley SanfordAug 31, 2025
  If your Orbit Timer's LCD screen is not working, a faulty solenoid could be the cause. In this case, the suggested solution is to replace the faulty solenoid.

Orbit Watermaster 94028 Specifications

General

Brand	Orbit
Model	Watermaster 94028
Category	Timer
Language	English

Summary

Section 2: Getting Started

Installing the Batteries

Instructions for inserting two AA alkaline batteries to retain program memory during AC power loss.

Resetting the Sprinkler Timer

Procedure to reset the sprinkler timer to factory default settings before initial programming.

Set the Time of Day and Date

Section 3: Programming

Start Times for Program A, B, or C

How to set the cycle start times for each program to begin automatic watering sequences.

Selecting the Watering Frequency

Options for setting watering frequency based on Day(s) of Week, Intervals, or Odd/Even Days.

Set Watering Durations

Methods for setting water duration per station using slide switches or dial set by minute.

Section 4: Automatic Operation and Commonly Used Features

Rain Delay

Function to delay sprinkler watering for a set period (24-99 days) using the RAIN DELAY button.

Section 5: Manual Operation

Single station

Multiple stations

Section 8: Wiring Valves, Sprinkler Timer, Pump Start and Master Valves

Wiring the Electric Valves

Guidance on selecting and connecting wire to electric valves for the sprinkler system.

Connecting Valve Wires to the Sprinkler Timer

Procedure for connecting individual valve wires and the common wire to the timer terminals.

Pump Start & Master Valve

Section 10: Trouble Shooting

Trouble Shooting Symptoms

A table listing common symptoms, their causes, and corresponding corrections for issues.

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