Cleaning Heat Exchangers

 Heat exchanger is used to transfer heat from one medium to another. Heated water is converted in to team by the heat exchanger and the steam is send to the room to keep the air warm.

Keeping the heat ex changers clean is the important part of the heating system. If heat ex changers are not cleaned their efficiency is reduced, they start over heating and if not checked can result in the failure of the heat exchanger.

 Following steps are to be followed to clean the heat exchanger:

Step 1:

Cut the furnace power by turning off the furnace from the thermostat and flipping the circuit breaker. Wear the insulated gloves for the safety purpose.

Step 2:

Remove the panels of the furnace with the help of screw driver.

Step 3:

Disconnect all the wires or the connectors, before disconnecting the wires label the wires properly or take a picture of the wires.

Step 4:

Remove the gas supply pipe from the gas valve. Identify the heat exchanger. Heat exchanger is a metal plate with tubes.

Step 5:

Remove the dirt of the block. Use a brush to clean the dirt present near the exchanger. You can also use the vacuum cleaner for this purpose.

Step 6:

Inspect the system carefully to make sure that there are no leaks in the heat exchanger. Leaks can result in rust and can cause damage to the entire unit. Make sure that there are no holes or cracks on the heat exchanger.

Step 7:

Take a bucket filled of water, add some detergent to it. Dip a cloth inside the water use it clean the surface of the heat exchanger.

Step 8:

Leave the heat exchanger open for few hours to dry out the water present on the heat exchanger, as wet exchanger can result in electrical fires.

Step 9:

Refer to the picture of the wire that you clicked or the labels that you attached to make sure you connect the right wire to the right place.

Step 10:

Connect the gas valve, flame sensor and the other components and Put the panels back on their places.

Step 11:

Turn the power of the furnace from the circuit board and the heat exchanger.




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