Performed a complete heating system maintenance and inspection. Inspected and tested all electrical components and safety controls on the indoor unit; all components tested within manufacturer specifications. Verified system temperatures: return air temperature measured at 76°F; supply air temperature measured at 115°F and rising. I did notice the return ducts to be forming build up. Provided estimate to have the cleaned. Confirmed air filter was recently replaced by client; filter size is 20” x 25” x 4”. Inspected and tested all electrical components on the outdoor unit; all components tested within manufacturer specifications. Except for the capacitor is reading on the lower end of the allowance from the manufacturer. 64 microfarads out of 70. Limit is at 63 microfarads. Confirmed system was operating properly and heating upon departure. System Status: Operating normally at time of service.
