Most pool equipment built by reputable manufacturers comes with safety features that can halt its operation. If the heater is not working, it's possible that one of these safety features has engaged. Call a pool professional to diagnose the problem.

Anything mechanical occasionally needs maintenance. If your pool cover isn't working, perhaps something is jammed. Or a safety feature on the motor has engaged. Smaller pool cover rips can be fixed. Check with your manual to see what is the best way to repair it. You may need to replace the cover if the rip is larger. It also may be easier to replace the fabric on automatic pool covers.

The filtration system not working is possibly another situation where one of the safety features on the motor has engaged. It also could be a chemical imbalance in the water. Call a pool professional to diagnose the problem.

Broken tile can be replaced. Call a pool professional.

A flaking pool surface can be a sign that a concrete pool needs resurfacing with plaster. It's a time-consuming job that requires a pool professional.

Smaller pool surface cracks due to impact can be patched. If it's a structural crack, you may have serious problems. If this is the case, patching the crack will do nothing because it will crack again. You may need to replace the entire pool.

-- Tips courtesy of HomeAdvisor.com