Nothing puts a damper on summer like a pool that won’t heat. Even worse is discovering that the issue came from something as small as a worn-out igniter or a corroded sensor. At Parts4WaterHeaters, we’ve seen how easily these small components can cancel pool parties and other summer swims. Fortunately, you can avoid such situations with the right replacement parts, regular maintenance and proactive repairs. Replacing a minor part before it fails is one of the smartest investments you can make in your summer – and we’re here to help heating professionals do exactly that with our comprehensive inventory, fast shipping and knowledgeable customer service.
Note: Working with pool heaters and electrical infrastructure involves serious safety risks. It is always best to work with a professional when inspecting or servicing your system to ensure your safety and the proper functioning of your equipment.
The Silent Killers Inside Your Pool Heater
Pool heaters rely on a range of small but essential parts to regulate temperature, maintain water flow and ensure safe operation. When one of these fails, it can bring the entire system down. Here are a few of the most common troublemakers:
- Igniters and Flame Sensors: These parts handle ignition and ensure that your heater is producing a flame properly. Corrosion, wear and carbon buildup can stop them from functioning correctly – leaving you with a heater that won’t start.
- Thermistors and Temperature Sensors: Responsible for reading water temperature, these parts help your heater know when to turn on or off. A faulty sensor can send incorrect signals, preventing heating even if the rest of the unit is in good shape.
- Pressure Switches: These switches detect water pressure inside your heater. When they are not working properly, they can falsely indicate low flow and shut the system down – often right after cleaning your filter or pump.
- O-rings and Gaskets: These flexible seals prevent leaks between components. Even a tiny crack in one can cause water damage, internal corrosion or a dangerous short circuit over time.
Prevent the Problem Before It Starts
While these parts may be inexpensive, the repairs you may need to make if you don’t replace them in time can be extremely costly. That’s why we recommend checking your heater at the start of the season and replacing any worn or suspect components. It’s far easier and cheaper to swap out a $20 component than deal with a $2,000 repair mid-season.
At Parts4WaterHeaters, we stock OEM and aftermarket replacement parts compatible with all major brands, including Pentair, Hayward, Jandy, Raypak, Sta-Rite and more. Whether you're looking for a new thermal regulator, a reliable ignition module or just a fresh set of gaskets, we’re here to help you keep things running smoothly.
Keep the Heat On, All Summer Long
Your summer shouldn’t be spent waiting for repairs or freezing in a half-warmed pool. Trust Parts4WaterHeaters to provide the parts you need to keep your system humming and your water warm. Browse our inventory online or give us a call at 800-536-1582 to get started on your project today.