A pool heater is a wonderful thing to have. Not only does it allow you to extend your pool season longer in most areas, but it also allows you to bring your pool water up to your preferred temperature quickly. But unfortunately, there may be times when your pool heater stops working. While some of the reasons may be easy fixes for you as the pool owner, others may require the services of a professional pool contractor or repairman. Here are a few common problems your pool heater may face.
1. Your Filter
One of the most common problems when your pool heater stops working is one of the most straightforward fixes. Your heater often needs to be fixed due to dirty or clogged filters or pump baskets. Leaves, twigs, frogs, and other debris can easily clog your system. When your system is clogged, your pool heater does not have enough water pressure to run correctly.
You can correct this by cleaning your filters and emptying your skimmer and pool baskets. Ensure you do not have a clog in your pipes leading to your pump. A clog is often evident by your pool pump's refusal to prime. You can dislodge a clog there using a plumbing snake or a similar tool.
2. Your Thermostat
Your thermostat controls what temperature your pool heater kicks on and kicks off. When your thermostat ceases to work, your heater will not come on. First, check the temperature you have your thermostat set on. Your heater will not come on if it is not set higher than your pool's current temperature.
Make sure the contacts on your thermostat are clean. Over time dirt and grime can build up on these and affect how your thermostat works. If your heater still does not come on once you increase your temperature and clean these, use a multimeter and check to see if your thermostat is getting power.
3. Your Safety Switches
Disabled or faulty safety switches can keep your pool heater from working. These switches are designed to keep your system from working when there is a problem in your system. Check your pool's manual to see where your switches are and if your system has flipped them off. Your system usually has numerous switches located in your control loop. These include:
- Pressure switch
- High-limit switch
- Pilot generator
- Gas valve
You can check each of these to see if they are receiving power with a multimeter. If you are uncomfortable checking these, leave this task to a professional.
Contact a local pool heater repair service to learn more.