Arrived on site to perform annual safety and maintenance inspection. Began by testing my inlet gas pressure which gave me a reading of 6.60. Tested my flame sensor and gave me a rating of 2.2 ÂµF. Tested my inducer and was pulling .54A. Bower was pulling 1.89A. Measured for my Delta T and got an air temp differential of 25Â°. Tested for CO inside home found none. Changed 14 x 20 x 1 air filter. Insured everything was working properly upon leaving. Thank you for choosing CPI plumbing and heating Inc.