Richmond Hill Pool Heater Repair | TSSA Expert Same-Day Service

If your heater isn't firing, it will display a specific code. Use this accurate reference guide to determine if you need a simple system reset or a TSSA-licensed repair.

• "LO" (Hayward H-Series): Limit String Open
      This code indicates that one of the safety limits (such as the pressure switch, high limit, or vent pressure switch) has opened the circuit.
  • The Fix: Although flow issues can sometimes cause this, it often indicates a failed safety sensor or a broken wire. A technician needs to test the circuit to identify the open limit.
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• "IF" (Hayward H-Series): Ignition Failure
      The system attempted to light but failed to sense a flame.
  • The Fix: This issue could be due to something simple, like a spider nest blocking the burner orifice, or more complex problems such as a faulty gas valve, a cracked igniter, or a dirty flame sensor. These repairs should only be carried out by a TSSA-registered contractor and their certified gas technicians 

• "SNS" (Raypak Digital): Sensor Failure
      A Raypak-specific code indicating that the thermistor (temperature sensor) is shorted or open.
  • The Fix: These are very susceptible to Richmond Hill’s hard water, worsened by pool chemicals. We have authentic Raypak sensors for a 20-minute replacement.

• "Fault  Check Flow" (Jandy JXi): Flow Error
      The Jandy JXi does not sense enough water pressure to safely heat.
  • The Fix: Start by inspecting your filter. If it appears clean, the issue might be a stuck or failed pressure switch or a problem with the VersaFlo bypass.

• "Fault  High Limit" (Jandy JXi): Overheating
      A critical safety lockout. The water inside the heat exchanger has exceeded 135°F.
  • The  Fix: Usually signals a failed thermal regulator or an internal bypass. Turn off the heater and contact us for assistance.

• "Spark / No Pilot" (Raypak Digital):
      The unit stays on "Spark" but doesn't start
  • The Fix: Often a clogged pilot orifice or failing pilot burner assembly.  Requires precise cleaning or replacement 

• ⚡ Speak Directly to a Gas Technician: 289-963-2507

While our team is actively servicing Richmond Hill and Oak Ridges, we provide the same "Direct to Tech" priority service to our neighbouring communities:

• North of Richmond Hill: We provide dedicated Pool Heater Repair in Aurora for homes in the Highlands and St. Andrew’s areas, specifically handling the unique challenges of the Moraine.

• West of Richmond Hill: Our technicians are frequently in King City for Pool Heater Services, offering rapid diagnostics for luxury estates and high-efficiency system