Posted on

Do not test a pressure switch by sucking on the pressure switch tubing.

I wanted to post this because many people are telling me that they are sucking on the pressure switch tubing to test pressure switch operation. I have heard from other forums that you should not suck on the pressure switch to test it because this can damage the diaphragm inside the pressure switch. It would be best to use a manometer or test with a volt meter like we advise on the following page: https://arnoldservice.com/how-to-test-and-troubleshoot-gas-furnace-pressure-switches/ I wanted to pass this along so others will not damage pressure switches. Please feel free to comment below.

Posted on

Always allow electronic parts to warm up to room temperature before applying power.

Rheem Ruud Furnace Control Board 62-25338-01

I remind myself of a terrible experience I had several years ago when I brought my desktop computer in from a cold car, plugged it in and fried the mother board! I found out the hard way that it is always a good idea to allow an electronic part like control boards, pressure switches, televisions, laptops, etc. to warm up to room temperature before applying power. If you bring anything in from the cold outdoors into a warm home, condensation (water) will form on the part. We all know that water is a conductor. We can see why so many electronic parts can get destroyed if we do not allow them to warm up before applying power.  I would strongly suggest that we allow the electronic parts and devices to sit for a couple of hours for warm up. This allows time for the water condensation to evaporate before applying power. I hope this will save you and others from problems.

Posted on

Aprilaire 500 Humidifier Maintenance Video

Aprilaire 550560

Below we have an Aprilaire humidifier 500 maintenance video made by HVAC.com. Many thanks to HVAC.com for making this informative video! This video shows you step by step how to perform the seasonal maintenance on your Aprilaire 500 Bypass Whole Home Humidifier. In the video it shows how to check the water feed tube, the strainer, the drain tube, the drain spud, the orifice, and the water panel. All of these are important parts that ensure your humidifiers performance and efficiency. Please click here if you would like to see the parts and supplies that we sell for the Aprilaire Model 500 series humidifiers. Please email us anytime if you have questions. Our email address is: support@arnoldservice.com. We would love to help you out and have your business!

Posted on

Aprilaire 700, 760, 768 Fan Powered Humidifier Maintenance Video

aprilaire 700

Below we have an Aprilaire Fan Powered Humidifier Maintenance Video made by HVAC.com. Many thanks to HVAC.com for making this informative video. This video will show step by step how to service your Aprilaire 700, Aprilaire 700M, Aprilaire 760, Aprilaire 768 fan powered humidifier. Please click here if you would like to see the Aprilaire humidifier parts and supplies that we sell for the Aprilaire model 700 series humidifiers. If you have any questions please email us anytime: support@arnoldservice.com  or comment below. We would love to help you out and have your business!

Posted on

Aprilaire Model 401 Filter Instructions

HVAC troubleshooting videos

Below we have a YouTube Video made by Santa Fe Air Conditioning and Heating which shows how to install the Aprilaire 201 and 401 filter. We sell the Aprilaire Model 401 filters on the following page: Please click here if you would like to see the Aprilaire 401 filters that we sell. If you have any questions please email us anytime: support@arnoldservice.com We would love to help you out and have your business!