Chandler, AZ
Clock & Timer Repair & Replacement
At Dave's Sprinkler Repair, we troubleshoot and repair controllers, reprogram timers for seasonal efficiency, and install modern smart controllers that save water and give clients remote control. We understand legacy systems and newest Wi-Fi-enabled controllers, offering best-fit recommendations for durability and ease of use.
Common controller and timer problems
- Dead or unresponsive controller display
- Incorrect programming causing overlapping schedules
- Controller runs at odd hours or stays on too long
- Failure to turn zones on or off due to controller relay issues
- Controller not communicating with remote or sensor devices
Services we provide for controllers and timers
Diagnostics and repair
- Test controller relays, fuses, and transformer operation
- Inspect terminal screws and wiring for corrosion or loose connections
- Repair or replace failed circuit boards and components when practical
Reprogramming and optimization
- Reprogram zones with efficient run times and start times based on plant types and microclimates
- Set up seasonal adjustments and alternate day schedules per local watering regulations
- Configure master valve timing and ensure rain sensor integration
Replacement and upgrade
- Replace obsolete controllers with modern, weather-based or Wi-Fi-enabled models
- Recommend controllers based on system size, complexity, and desired remote access
- Install and commission the new controller with full user training
Sensor and accessory setup
- Rain sensors, soil moisture sensors, and flow meters installation and calibration
- Battery backup setup and troubleshooting for controllers that use backup batteries
Diagnostic approach
Electrical verification
Check transformer voltage and continuity to ensure the controller supplies adequate power to solenoids.
Wiring audit
Inspect wire runs from the controller to valve zones for breaks, shorts, or rodent damage.
Program review
Evaluate the current schedule and run times to prevent overwatering or conflicting programs.
Accessory testing
Test rain sensors and flow sensors to ensure proper shutoff during rain or abnormal flow conditions.

Controller replacement considerations
Number of zones
Choose a controller that supports your existing zones with room for future expansion.
Remote access
Decide whether Wi-Fi control with mobile access is valuable for your landscape management routine.
Weather data type
Some smart controllers integrate local weather feeds, while others rely on sensors mounted on-site for accurate adjustments.
Budget and ROI
Smart controllers can reduce water waste and lower bills, making them cost-effective for many properties over time.
Frequently asked questions
My controller display is blank — is it broken?
A blank display could mean a blown fuse, transformer failure, or local power issue. We test power at the controller, then inspect the internal components to determine whether repair or replacement is best.
Can I upgrade an old controller to a smart system?
In most cases, yes. If your wiring and zones are in good condition, we can retrofit a smart controller that communicates over Wi-Fi and integrates with sensors.
How do rain sensors work with controllers?
Rain sensors physically shut off the controller when sufficient rain is detected. Smart controllers typically use local weather data to perform a similar function without a physical sensor.
Will you train me on a new controller?
Yes. We provide on-site training and documentation so you can confidently manage schedules and adjust settings. For smart controllers, we also help with app setup.
Contact for controller services
To schedule controller diagnostics or install a smart timer:
Call today to discuss scheduling or specific service needs.
Ask about smart controller options to reduce water usage and gain remote control.

