Pool Heater Pros® provides expert pool heater diagnostics for the common heating systems across King City. Whether you have a Jandy JXi, Hayward H-Series, or Raypak Digital Heater, we carry the specific JXi igniter kits and limit switches required for these high-efficiency units. We understand the unique gas pressure requirements of King City estate properties.
Recent King City Service: We just completed a Jandy JXi blower assembly replacement for a property near Keele St & 15th Sideroad. The heater was failing to start; we installed the new blower and recalibrated the air-to-gas ratio for peak efficiency.
Call Pool Heater Pros® now and Speak Direct to A Gas Tech! 647-498-5633

We specialize in the Hayward Universal H-Series (FDN) and ED2 models. If your heater has an 'LO' code (Limit Open) or 'IF' (Ignition Failure), it often points to a faulty High-Limit switch or a worn FDXLIGN1930 igniter. Because King City can have gas pressure issues in some rural areas, we always verify the gas valve settings during the repair.
Common Hayward Heater Issues We Deal With:
· Hayward Heater Won't Start
· Low Water Flow (LO Code)
· IF Error Codes
Recent King City Service: Our team recently replaced a display control board and igniter on a Hayward H400FDN near King Rd & Dufferin St. We ensured the unit was sealed properly against the elements to prevent future board failure.
Call Pool Heater Pros® 647-498-5633 for Hayward Repair in King City

If your Raypak Digital is showing a 'Sensor Failure' (SNS) or 'Rollout Switch' error, we provide fast service throughout King City. These heaters are common in the larger estate properties across King, and we carry the specific thermistor and sensor kits needed to fix them on-site without a second trip.
Common Raypak Error Codes We Troubleshoot:
Recent King City Service: We just completed a Raypak 406A burner tray cleaning and sensor replacement for a property off Keele St near King Road. The heater was suffering from roll out due to debris, which we cleared to restore safe operation.
Call Pool Heater Pros® 647-498-5633 for Raypak Repair in King City

"If your Jandy JXi is showing a 'Check Igniter' or 'High Limit' fault, our Thornhill technicians are nearby to help. We specialize in the LRZ series as well, ensuring your pool stays warm all season.
Common Jandy JXi and LRZ Issues We Deal With:
· Ignition Failures
· Low Water Flow
· Sensor Issues
Recent King City Jandy Heater Service: We just completed a Jandy JXi sensor replacement and thermal regulator cleaning for a client near King Hill. Their heater was back up and running in under an hour.
Call Pool Heater Pros® 647-498-5633 for Jandy Repair in King City

Protect Your Raypak, Hayward or Jandy Heater from Scaling & Soot. The family-oriented residential areas in King Crest and King Hill require precise calibration to run safely. Our Annual Pool Heater Maintenance program tests the gas pressure and inspects the thermal regulator to prevent 'SNS' and 'High Limit' errors. A properly tuned heater uses less gas and lasts years longer in the upscale properties of Kings Cross and Oak Ridges Trail Area.
Local Service: We just finished a seasonal safety check for a home near Kingslynn Drive and Warren Road, ensuring their Hayward H Series heater was optimized for peak performance before the long weekend.
Rapid Response with No Weekend or Holiday Fees
If your pool heater dies on a Friday night near the King Road and Keele Street area, don’t panic. We provide Emergency Repair with No Surcharges for weekends or holidays. We carry the igniter kits and control boards for all Raypak, Hayward and Jandy models to ensure we fix it on the first visit, even during a busy graduation or garden party in Reservoir.
Call Pool Heater Pros® 647-498-5633 for Emergency Repair in King City:
Frequently Asked Questions about Pool Heater Repair in King City
A 'High Limit' fault means the water inside the heater is getting too hot, often due to a faulty thermal regulator or a bypassed internal flow. In King City, we often see this on Jandy JXi and LRZ models. We carry the replacement limit switches and regulators to resolve this on-site.
No. We believe a cold pool is an emergency, especially if you have a family event planned near Keele St or 15th Sideroad. We offer No-Surcharge repairs on Saturdays, Sundays, and Holidays throughout King City.
Absolutely. Raypak atmospheric heaters (like the 206A-406A) are workhorses. As long as the heat exchanger isn't leaking, we can usually restore it with a new pilot assembly or gas valve, saving you the cost of a full replacement.
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