Top Step by Step Process to Fix HVAC Furnace

Before starting the step by step process to fix hvac furnace I have a suggestion to reader contact a HVAC Specialist because the HVAC Furnace involves high amount electric current which much be as dangerous for harm you alot and this following guide are just for the knowledge purpose please don’t try to take any action yourself contact local HVAC Company in your region.

Complete Guide to Fix Furnace of HVAC System

HVAC Furnace are considered a modern technology form which is used to maintain heat in cold winter seasons. That's why it is necessary to take some precautions before the repairs begin.

• Turn off the Power :Find out the furnace dedicated circuit mc and turn off it for better safety.

• Don’t Start if Smell Gas :Stop immediately. Do not switch on or switch off any lights. Go outside, and at a distance where you can see it safely.

• If you face any doubt, Call Expert : This guide entails simple repairs. Whenever dealing with complicated electrical or mechanical needs, it is always best to contact an authorized HVAC technician.

Steps to Fix Error of HVAC Furnace 

• Step 1: Check the Thermostat

1. Setting to Heat: The thermostat should be switched to the settings of HEAT.

2. Increase the Temperature: Make the temperature at least 5 degrees Celsius above the current room temperature so that it puts a call on heat.

3. Check the Batteries: If you have a digital thermostat, bad or low batteries are a very typical culprit. Change them to new ones.

4. Test the Display: Check whether the screen is blank or it has the error code.
   

Step 2: Check Power and Fuel Supply

1. Furnace Power Switch: To get heat, make sure that the power switch near or on the furnace is set to the ON position. It sometimes resembles an ordinary switch of light.

2. Circuit Breaker: Go to your electric main of the house. Trip a breaker that is labeled Furnace, HVAC or Air Handler. A tripped breaker will either be in mid position or OFF position. To reset it, flip it all the way to OFF and back to ON.

3. Gas Valve: Have a look at the gas valve that is close to the furnace. The handle is to be perpendicular to the gas pipe which means that it is open and gas is passing through it.

• Step 3: Inspect and Change the Air Filter

1. Filter: filter will be found in a hole between the main furnace unit and the return air duct.

2. Slide out the old filter: Remove the filter. See the size by which it is printed in the frame.

3. Inspect and Replace: the filter should be replaced in the case of a visible sign of being grey, dusty, or filthy with debris.

4. Install New Filter: Your new filter should be the clean one; simply slide the new filter into the opening, but be sure the arrow on the airflow frame printed on the filter frame points towards the furnace blower motor.
   

Step 4: Power Cycle (Reset) the Furnace

1. Turn the thermostat off.

2. Turn off the furnace power switch.

3. Wait for 5 minutes.

4. Turn the power switch back on.

5. Turn the thermostat back to "HEAT" and raise the temperature.

6. Listen for the furnace to start its ignition sequence.

• Step 5: Look for Diagnostic Codes

1. Turn Power Off: Before opening panels ensure that the power is off.
2. Unplug the Panels: the main service panel as well as the blower compartment panel should be removed on your furnace.
3. Locate the LED Light: There is a tiny LED light on the main circuit board.
4. Turn the Power Back On: Read the Code by watching this light. It will flash in a certain sequence (e.g. Three short flashes, one long). Search on inside of the furnace panel there should be a sticker with these error codes and a description of what they mean. This code will tell you exactly the problem (e.g. "Ignition Failure", "Pressure Switch Open").

Conclusion

All the following steps must be risky. That's why I recommend you to call a hvac furnace expert and don't try your own. If you're from Delhi NCR region then you should try Top HVAC Company in Delhi NCR where Ventac Aircon, MG Coolings Solutions, SV Airtech, etc. For complete and safe repair of HVAC Furnace.