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The colder it gets outside, the more often you will use the Goodman furnace. As a matter of fact, the furnace is probably the most used appliance in the house throughout the cold season. It’s quite common for customers to let it run for hours without thinking about the internal mechanics’ consequences. If you sense any issues with your Goodman furnace, changing the speed could impact the performance.
Many furnaces present a target speed, according to the capacity and the climate, so you should always check the manual to determine what blower speed should be for your furnace.
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What happens if you raise the blower speed?
When you’re increasing the blower speed, you will improve the warm airflow inside the house most of the time. Should you lower the rate, your system will become less noisy. Adjusting the Goodman furnace speed has different effects, so you should do it accordingly.
How should you do it?
When working with your furnace, taking the proper steps keeps you and your device safe. Here’s how to adjust the blower speed:
Step 1
It would help if you began by turning off the power source connected to your furnace blower.
Step 2
Continue with slowly disconnecting the wires from the coolant terminal, which is typically found on the back of your furnace. The cables have various colors.
Step 3
It’s now time to connect the black wire to the manometer, a tool informing the CFM (cubic feet per minute) value. Most of the time, the black wire is the highest blower, which is why you should begin with it. The reading may vary, so it’s possible to see a decimal number, like 0.89 or 0.88. A sticker on your furnace provides the information about the regular range for each wire color.
Step 4
It’s also essential to observe the other cables. The manual should inform you if the furnace is blowing low, medium, or high, and every wire has a specific speed blowing when connected. The blue may be medium, black is high, and yellow is typically low. It\s, not a general rule, so checking the speed with the manometer is the best way to know.
Step 5
You will have to connect the wire transmitting the desired speed to the coolant terminal. The cable you pick should be in touch with the coolant’s terminal bottom right. When the black wire was at the bottom right, and you wish to utilize the blue to find out the blower speed, it’s essential to place the blue wire where the black cable was in the first place.
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