Markham Pool Heater Repair | Pool Heater Service Markham
Same-Day Repair for SNS, LO, and Ignition Faults in Cornell, Berczy Village & Raymerville
If your pool heater isn't firing, we are already in the Markham area with the parts to fix it. We specialize in Jandy JXi, Hayward FDN, and Raypak Digital heaters, stocking the igniters and sensors needed to resolve common error codes on the first visit.
Whether you are in Cornell, Berczy Village, or Raymerville, we provide expert diagnostics and fast repairs to get your water back to temperature.
Recent Markham Service: We just completed a Hayward H400FDN control board replacement for a homeowner near McCowan Rd & 16th Ave. The unit was completely unresponsive; we installed a new display board and had the pool heating within 45 minutes for their upcoming weekend event.
- TSSA-Certified gas technicians
- Certified Pool Operators (CPO)
- Same-day or next-day response
- Markham Priority: Fast service for Unionville and Thornhill
- Direct Gas Tech Access: No call centres; speak directly with the pro at (647) 498-5633.
Pool Heater Pros® - Serving Markham, homeowners with trusted, certified pool heater repair service.
Certified heater repair services in MARKHAM
Hayward H-Series FDN & ED2 Pool Heater Repair Markham
Fix Hayward 'LO' (Limit/Pressure) & 'IF' (Ignition Failure) Codes
We specialize in the Hayward Universal H-Series (FDN) and the older ED2 electronic models. If your display shows an 'LO' code (Limit Open) or 'IF' (Ignition Failure), it usually indicates a faulty High-Limit switch, a clogged heat exchanger, or a worn FDXLIGN1930 igniter kit. We stock Genuine Hayward H-Series Replacement parts to ensure a first-visit fix in Markham.
Common Hayward H Series Heater Issues Handled
- Ignition and flame sensor issues
- Ignition failure (IF)
- Pressure switch (LO) and flow issues
- Control board (CE) and wiring faults
- Error codes
Recent Markham Service: Our team recently swapped a leaking inlet header O-ring kit and flow control thermostat (thermal regulator) on a Hayward H250ED2 near McCowan Rd & 16th Ave. And because we are also Certified Pool Operators (CPO) we verified the water chemistry to ensure the new parts last.
Call Pool Heater Pros® (647) 498-5633 for Hayward Repair in Markham:
Jandy JXi & LRZ Pool Heater Repair in Markham
Fast Fix for Jandy 'Check Igniter' & 'High Limit' Fault Codes
If your Jandy JXi is showing a 'Check Igniter' or 'High Limit' fault, we are nearby to help. These heaters require clean airflow and stable power; we stock the Jandy Igniter (R0457502) Kit for JXi Heaters and limit switches to ensure a first-visit fix for homes throughout the Markham area.
Common Jandy JXi and LRZ Heater Issues Handled
- Fixing ignition faults
- Failure to heat
- Sensor problems
- Check Ign Steps" Error codes
- Control board failures
Recent Markham Service: We just completed a Jandy JXi igniter replacement and thermal regulator cleaning for a client near Markham Unionville. Their heater was showing a "Check Igniter" code; we checked igniter resistance, which was over 97 (~50 ohms is normal). We restored the ignition system and had it working safely and heating their swimming pool within an hour.
Call Pool Heater Pros® (647) 498-5633 for Jandy Repair in Markham
Raypak Digital Pool Heater Repair in Markham
Troubleshooting Raypak 'Sensor Failure' & 'Rollout Switch' Errors
If your Raypak Digital (Models 206A-407A) is stuck on a 'Sensor Failure' (SNS) or 'Rollout Switch' error, our Markham technicians can get it firing again today. These atmospheric heaters are workhorses, but often require a simple thermistor replacement or a burner tray cleaning to restore the flame and prevent soot buildup.
Common Raypak Heater Issues Handled
- ProTek Shield (017960F) replacement
- Heat exchanger inspection
- Temperature sensor replacement
- Error codes like Rollout Sw Open
Recent Markham Service: We just completed a Raypak 266A spark igniter repair for a homeowner in Unionville near Hwy 7 & Kennedy Rd. The unit was clicking but not firing; we cleared the gas orifices and had the pool heating within 30 minutes.
Call Pool Heater Pros® (647) 498-5633 for Raypak Repair in Markham & Unionville
Pool Heater Services Markham, ON | 647-498-5633⭐️
👉 Emergency Pool Heater Repair in Markham
No Surcharges for Weekends, Holidays, or Pool Parties
Is your heater down right before a big event at your home near McCowan Rd & 16th Ave? We treat every breakdown as an Emergency.
We offer No-Surcharge repairs on Saturdays, Sundays, and Holidays. Whether your Raypak won't fire or your Hayward display is blank, we’ll get there fast so your guests aren't swimming in a cold pool.
Fast dispatch across Markham and nearby neighbourhoods for heater emergencies.
Call Pool Heater Pros® (647) 498-5633 for Emergency Repair in Markham
💡 Pro Tip: Gas appliances should only be serviced by licensed professionals.
Annual Pool Heater Maintenance in Markham
Annual Pool Heater Maintenance in Markham Prevent Jandy, Raypak & Hayward Service Codes with a Seasonal Tune-Up
Don’t let a 'Check Igniter' or 'LO' code stop your summer before it starts.
Our Markham Annual Maintenance includes a deep burner tray cleaning, heat exchanger flush, and gas valve calibration. We service all major models (Jandy JXi, Hayward FDN, Raypak Digital) across Cornell, Greensborough, and Box Grove to ensure your swimming pool heater runs safely and efficiently.
Local Service: We recently performed a full system diagnostic for a client near the Markham Pan Am Centre and Enterprise Blvd, clearing a blocked pressure switch to prevent a mid-season shutdown.
Same-day support
In peak season, call early in the day for the best chance at same-day or next-day appointments.
Call 647-498-5633