Basics of furnace repair



Every year you need to call Furnace companies to take care of various things in your furnace and around it so that it is in the best condition when it can be when winter comes. But how can you be sure that you will get the most for what you have invested in it? And how can you feel more comfortable when it’s time to take care of everything related to your furnace? Here are just a few basics of furnace repair, which you need to consider.

Replacement of control light
Control light may come out for various reasons. Normally, the system is supplied with the manufacturer’s instructions to illuminate the tell-tale, if not, follow these steps:
Locate the test lamp assembly. It usually has a gas valve with on, off and pilot configurations. Turn the valve to the off position and wait a few minutes. Turn the valve back to the pilot position. Light up the match and hold it until the pilot opens.

Keep the reset button pressed on the control panel until the flame illuminates. As soon as you see that the pilot flame is bright, turn the valve to the “On” position.
If there is no pilot light in your pilot system, then it probably has an electrical ignition system. You will need to call a professional furnace repair to fix the electric pilot system.

Replacement of thermocouple
If the test lamp does not light even after resetting, the thermocouples may be faulty and must be adjusted or replaced. A thermocouple is a safety device for closing the gas supply if the ignition has a problem. It is usually located near the control light burner.

Adjust the thermocouple by slightly tightening the nuts with a wrench. If the test lamp does not light even after adjusting the thermocouple, replace the thermocouple by following the steps below:
Open the wire and the nut from the gas connection. Unscrew the mounting bracket nut and remove the thermocouple. Hold the copper wire down and the steel tube up.

Place a new thermocouple in the hole of the bracket. Tighten the bracket nut. Push the connecting nut onto the threaded connection to the gas pipe. Secure the connection by screwing the nut back into place without tightening it.

Replacement of thermostat
Most often the reason your furnace is not turned on or heated properly is due to a faulty thermostat. When replacing a faulty one with a functional thermostat, be sure to select one with the same nominal voltage.

Remove the front panel from the old thermostat, remove the fixing screws of the old unit and gently remove the wires from the back by turning the connection counterclockwise. Clean dust from open wires and reconnect the wires to a new thermostat. Insert the thermostat into the position opposite the wall and install the fixing screws. Return the front panel back and check the heating or cooling function.

So, as you can see, there are many different things that you need to take care of, and besides, you also want to make sure that you have everything in order before the winter hits. Repair and inspection must be done in advance so that you are not in a situation where you cannot fix it, and then it will happen in the coldest time of the year.