When a Calgary sprinkler system stops working mid-season, the cause is almost always one of five things. This guide walks you through each one — how to identify it, and whether it requires a professional repair or a DIY fix.
Common Reasons Sprinklers Stop Working — Calgary Diagnosis Guide
| Problem | Symptoms | Likely Cause | Fix | Cost |
|---|---|---|---|---|
| No zones run | Controller shows program, nothing activates | Master valve, main shutoff, or controller fault | Check shutoff is open, check master valve wiring | $60-$280 |
| One zone does not run | All other zones fine, one zone silent | Solenoid failure, broken wire, or stuck valve | Solenoid replacement or wire repair | $60-$160 |
| Wet spot when system is off | Soggy patch that does not dry | Underground pipe break or valve not closing | Leak detection + pipe repair | $150-$500 |
| Low pressure on a zone | Heads barely pop up, poor coverage | Partial blockage, too many heads, line restriction | Flush filter, reduce head count, or add zone | $60-$300 |
| Controller shows error | Short circuit warning, zone fault | Wiring short, damaged solenoid, controller failure | Disconnect zones one-by-one to isolate fault | $80-$550 |
Why do Calgary sprinkler systems fail in July?
July failures are most often solenoid failures (heat + continuous cycling stresses the coil), pipe breaks from mowing damage, or controller malfunctions. Call J.G. Irrigation for same-week diagnosis: 587-433-4795.
Same-Week sprinkler repair — Calgary
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