Pool Heater Repair Service

ProLine Service · YKT Inc. · Mazgan Inc..

Pool Heater Repair Service

Pool heater not firing, not heating, short cycling, leaking, or showing ignition errors. ProLine Service handles gas pool heater diagnostics, cleaning, repair, and replacement options.

Gas pool heater repair for common failures

Pool heaters fail from ignition problems, blocked burners, dirty heat exchangers, bad sensors, pressure switch faults, weak pilot assemblies, gas valve issues, and poor water flow. We check the system before quoting repairs so you understand the real issue.

  • Ignition and flame failure diagnostics
  • Burner cleaning and combustion checks
  • Pressure switch and flow-related problems
  • Temperature sensor, high limit, and control board issues
  • Replacement options when repair is not worth it

When a pool heater needs maintenance before repair

If the burner tray, pilot assembly, heat exchanger, or cabinet is packed with debris, repair alone is not enough. A dirty gas pool heater can keep damaging new parts. Maintenance helps confirm safe operation and gives the repair a better chance to last.

Questions customers ask

Common questions about pool heater repair service.

Why is my pool heater not turning on?

Common causes include no call for heat, poor water flow, ignition failure, pressure switch faults, gas supply problems, or a control board issue.

Why does my pool heater fire and then shut off?

This often points to flame sensing, water flow, dirty burners, blocked heat exchanger, high limit trips, or gas pressure problems.

Should I repair or replace my pool heater?

Repair makes sense when the heat exchanger and cabinet are still solid. Replacement makes more sense when the unit is heavily corroded, leaking, or has repeated expensive failures.

Does a gas pool heater need yearly maintenance?

Yes. Annual cleaning and inspection helps prevent ignition failure, overheating, corrosion, and unsafe combustion.

Service areas

Serving York Region, Durham Region, and Simcoe County.

York Region

Vaughan, Aurora, Newmarket, Richmond Hill, Markham, King, East Gwillimbury

Durham Region

Pickering, Ajax, Whitby, Oshawa, Clarington, Uxbridge

Simcoe County

Barrie, Innisfil, Orillia, Bradford, Georgina

Need service today?

Pool heater, AC, boiler, and HVAC calls handled by ProLine Service.

Call 437-524-0866