Kearney, MO HVAC & Plumbing Services

Completed furnace maintenance and inspection. I checked all components and amp draws. Cleaned up furnace and flame sensor. I found no issues with furnace at this time other than dust getting inside system. Ran heat pump and found common wire to capacitor burnt. Contactor had rust building up as well. Found out that there’s a sprinkler system causing this. With customer permission I replaced Contactor, fixed burnt wire, added hard start kit and added foam tap to help keep the water out. All operations were within manufacture specs at departure.

Dropped off electrostatic media filters that I did not have in stock in my van at the time of AC maintenance.

Arrived at the customers home to perform an AC maintenance. Upon arrival I put the system into cooling mode and began by checking static pressure. Static pressure passed at this time. I performed a CFM count which was also passing. I checked all electrical levels which were within manufacture specifications today. I inspected the blower wheel assembly for cleanliness and excessive play in the shaft. The blower wheel assembly looked good today. I performed a temperature split between the supply and return air which was 20 degrees. I moved to the outdoor unit and checked all electrical and refrigerant levels. Refrigerant levels were good today but I found the compressor to be drawing over the allowed amps on start up. I spoke with Jim about my findings and proposed installing a hard start kit to help the compressor on startup. I also recommended doing an extensive coil cleaning today. Jim decided he did not want to go with the options today. I washed the outdoor coil with water, and the

Upon arrival I began the AC tune up. I found the static pressure was failing at .7 when it is rated for a max of .5 but the manufacturer wants it at 80% of the max which would be .4. I checked the cooling Delta T level which was good at 18 degrees. The blower wheel is caking up with dirt. The running amps on the blower motor are a little high at 9 running amps. The capacitor on the blower was at 100%. The dual run capacitor on the outdoor condenser unit was at 100% as well. Customer asked me not to check the refrigerant levels. The running amps on the fan and compressor were within limits. Customer opted not to have a field supervisor out to find a solution to the static failure issue.

Double return,12x24 secondary boot, and EAC filter

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Checked all operations in the heating modes and inspected the furnace filter. Checked the static pressure and found it was still a bit higher. Checked all electrical components and preformed a combustion analysis of the furnace. Furnace was burning fuel properly at this time. Today I found the contractor was burning up. Talked with customer about the concern and upon their approval we replaced the contractor. A supervisor is on their way to evaluate the higher static pressure.

Arrived to do a dual performance maintenance. Started inspection outside and verified each systems refrigerant charge. Verified operation of all mechanical and electronic components of the condensers. Moved inspection inside and measured a temperature split between return and supply air. Measured power consumption of the blower motor and checked systems for cleanliness. Performed a static pressure tests and found that both systems are operating beyond their rated maximum static pressure. With homeowners approval reached out to have a supervisor complete the diagnosis on the systems high static pressure on Tuesday afternoon. Rinsed coils free of debris. Air conditioning systems are functioning at this time.