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

0130F00002P pressure switch

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 voltmeter as we advise on the following page: Please click here if you would like to see how to properly test gas furnace pressure switches. I wanted to pass this along so others will not damage pressure switches. Please feel free to comment below or email us if you have questions. Our email is arnoldservice@gmail.com
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