How to Repair Central Heating

In order for your central heating system to work properly, you must have several things in working order: fuel to burn, water to heat, a flame to heat the water, and a supply of electricity. Dysfunction of any of these things can cause you to lose heat--or not obtain any at all. In order to prevent or fix these problems, it's important to learn how to repair central heating.

Instructions

1. Check the oil level of your tank. In order to do this, pull the plunger-like lever of your sight-gauge. If the oil level drops out of sight, this is an indicator that you need fuel. Call your oil company to arrange delivery.

2. Touch the large pipe going into the bottom of the boiler. If it feels cold to the touch, listen carefully and feel for any vibration to determine if the pump is working. If you do not feel the slightest vibration, this may be an indicator that the pump has failed, thus there's no water circulation. Loosen the brass nut on the pump to bleed it until all air has been expelled. If nothing comes out, it may be time for a replacement pump.

3. Remove and clean the ducting to the air intake on your boiler if you hear a funny noise. A rattling sound or a humming sound may be an indicator that dirt or debris is lodged in the air intake. To correct this problem and prevent further repairs, remove the flexible duct work connected to the air intake on the boiler. Take a look inside and remove any debris. Replace and listen carefully--it should be quiet now.

4. Check the float valve is your overflow is running all of the time. It may be jammed or it may be dirty. If this does not seem to be the problem, it may be time for a new immersion tank.