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SOME COMMON POOL WATER HEATER PROBLEMS

Swimming pool water heaters may be one of the innovative invention of science but they also tend to have issues now and then. There are some common problems that tend to happen with almost all brands of pool water heaters. Below is a list of some common problems and a solution about them.

Heater Takes Too Long To Heat And/Or Has Strong Odor
1)This tends to happen sometimes in a pool/spa combination. If you are trying to heat the spa you may have the valve in the wrong position of it may happen that you have a leaking gasket which is letting in the cold water from the pool. This increases the time it takes to heat the spa or the pool.
2)If pump is pumping water too fast through heat exchanger water will take longer to heat - has a new higher flow pump been installed? You may need to install a by - pass valve.

The heater cycle comes on and goes off constatly
1) This has a tendency of happening when the water level is too low. Sometimes the water level is just high enough to start flow going and turn on heater, but as pump catches prime, a vortex or swirl of water creates a funnel of air into skimmer which impedes flow and shuts off heater. As pump tries to prime again, the heater will fire then shut off again, cycling on and off.
2)You may also want to look into if in case your headers are rusted. This is when your heater has iron headers and they have rust, which will stop the water flow from reaching its high limit switch causing the heater to shut off until they cool. On the other hand, if the rust is severe, you may notice the entire heater shaking and making noise when the water is boiling in it.
3)Your heater has some type of flow control,often similar to a car's radiator thermostat that lets water flow from heat exchanger as its heated. If this device is not working properly, heater can cycle.

Having a low water flow on the pressure switch
Heaters have a pressure switch inside which assures an adequate flow of water is going through heater. If the flow is inadequate, the switch will not complete circuit.
1)THE MOST common - the filter is dirty.
2)Pump or skimmer basket is full of debris
3)Pump impeller is clogged
4)The water level is too low, so the skimmer sucks air. Sometimes the water level is just high enough to start flow going and turn on heater, but as pump catches prime, a vortex or swirl of water creates a funnel of air into skimer which impedes flow and shuts off heater.
5)Is weir flap or bobber stuck on skimmer?
6)Is pressure switch or wire connections defective?
7)Perhaps the pump is running,but not pumping water.

Water corrosion to the filter
If you have ever seen rust, you’ve seen how water can damage things. Even though the parts of your pool have been treated to withstand water damage, eventually corrosion will happen. If your pool is older, corrosion could be your problem. It can only be fixed by replacing the damaged parts.