What are the warning signs that you need heater repair?

Answer:
If your heater is running more than usual and still not heating your house as it should you probably need a repair. Also, if your enery bill has increased lately or the house is unevenly heated you should have your heater checked.
First answer by Answers Publishing Network. Last edit by Answers Publishing Network. Contributor trust: 100 [recommend contributor recommended]. Question popularity: 1 [recommend question].