Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Overall Experience
Quality
Price
Convenience
Brad and Cody seem to be a great team. I have been using Dobbs to provide HVAC services for my home and business for many years now and I am more familiar with Brad. That said, I have met Cody a few times previously and he does great work as well! He is concise and works hard. He and Brad knocked out my annual service quickly today.
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Brad Nguyen always provides great service. I have been using Dobbs to provide HVAC services for my home and business for many years now and Brad is my got to guy! He is very professional, knowledgeable, trustworthy, and just a great individual! I highly recommend this company!
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Dobbs worked with me on getting a time window that worked for me. Cody, the technician, was patient in waiting on my arrival from work. He was courteous and informative and he got the job completed in a timely manner.
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Cody was very knowledgeable, professional and a joy to work with.
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Overall Experience
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DCM1: Service 1 of 2, A/C, Changed (1) 16x25x1, Performed Cooling Maintenance per Checklist system is running at this time but due to age multiple part failure is possible at any time.
DCM2 service 4 of 4 Ac completed changed (1) 14x14x1 (1) 14x20x1 filters checked (1) 20x25x4 filters Tested system operation’s everything is operating at this time attached is AC maintenance checklist
DCM1 service 1 of 2 Ac completed changed (1) 16x20x1 filter, tested system operation’s everything is operating properly at this time attached is AC maintenance checklist.
Arrived to No Cool Confirmed open windings on compressor. Disconnected high and low-voltage, removed fan and top panel and removed access panel. Removed 11 pounds of R410 refrigerant. Cut out and removed compressor and filter dryer. Installed new compressor, added 4 ounces of acid away, and prepped all copper fittings for brazing. Flowed nitrogen and brazed in compessor, filter dryer and all connections. Pressure tested system at 215 psi with no leaks detected. Performed a vacuum on the system down to 500 microns. Replaced 45 MFD capacitor and installed protector Added 12 lbs. 9 oz. of R410 refrigerant Tested system, system functions as designed. Diagnostics photo attached Homeowner request invoice be emailed along with compressor warranty information all done. Complete paid was done all done done looked invoice. Cody was. It wasn’t taller than I am. I had a good time. Flowing starving at 6:30 Thursday and Friday.
DCM1 :Service 2 of 2, A/c 16x25x1, Performed Cooling Maintenance Per Checklist, checked history and found that a refrigerant leak in the evaporator coil was found by previous technician and he added 2lbs of R410A while on location today system pressures are appropriate for indoor and outdoor temperatures but due to age and condition multiple part failure is possible at anytime.
DCM1: service 1 of 2 Ac completed left (2) 14x20x1 filters, with homeowner, fuse was blown caused by rubout on outdoor unit, fixed wire, tested system operation’s everything is operating properly at this time attached is AC maintenance checklist.
Upon arrival no AC, tested system operation’s found breaker was tripped, tuned breaker on fan motor was operating however compressor was not. Replaced capacitor, and hosed down compressor to see if unit was on thermal overload. Ohmed through compressor was getting 2 open legs from S-R and R-C compressor is bad and needs to be replaced, will need 2 people unit is very tall. Please send over estimate and get homeowner on schedule.
DCM2 service 1 of 2 Heat completed changed (2) 16 3/8 x 21 1/2 x 1 filters tested operations, both indoor evaporator coils are severely impacted with dust and debris, to the point which negatively affects airflow, efficiency and indoor air quality. Both air handler blower wheels are also impacted that affects indoor airflows, and efficiency. Upstairs unit capacitor is 7.5MFD reading 6.27 and, is out of range, failure of part would result in no AC. Main floor capacitor 7.5MFD reading 5.16, and is out of range, failure of part would result in no AC. Both evaporator coils show significant rust, possibility of leaks are increased with amount of rust. System are both from 2007 and are 16 years old. Average lifespan of system is 10-15 years of age. Due to age and conditions would Recommend Replacement.
DCM1 service 2 of 2 AC completed changed (1) 21 1/2 x 23 3/8 x 1 tested system operation’s everything is operating properly at this time attached is Ac maintenance checklist.
DCM1 service 2 of 2 AC/heat completed changed (1) 20x25x1 filter. tested system operation’s system is operating properly at this time attached is maintenance checklist
Arrived to no cool, found breaker turned off causing no power to upstairs unit, found faulty sequencer in place of fan control relay however we did not have a fan control relay so we used a contactor. Homeowner is fully aware that heat strips will not work causing unit to not heat at full capacity. System is now cooling properly with a 22* temp split, a saturation temp of 41 and superheat of 2.
DCM3 service 2 of 2 AC completed changed (1) 16x20x4 (1) 20x22x1 (1) 16x20x1 filter, tested system operation’s everything is operating properly at this time attached is Ac maintenance checklist.
DCM1 complete; AC; (2) F20254 checked. Systems are cooling properly. All components are operating within manufacturer specification. Refrigerant pressure and temperatures are appropriate for indoor and outdoors conditions. AC checklist attached Upstairs system added 1 lb of 410a refrigerant to get system above freezing, probable leak in 19 year old system
DCM2 service 2 of 2 AC completed changed (1) 16x20x1 (1) 16x25x1 filter, tested system operation’s everything is operating properly with upstairs system main floor charge readings look low roughly 1-2 pounds of R22. R22 is no longer in production and is discontinued as of 2020. Adding refrigerant will only provide temporary comfort and will not fix leak. System is 29 years old average lifespan is 10-15 years due to age and condition would recommend replacement. Attached is AC maintenance checklist.
Removed old equipment and installed new 3 ton 15 seer communicating gas system. Installed new return plenum with 16x25x4 filter, new emergency drain pan, new pan safety switch, new coil safety switch, new thermostat, new composite pad for outdoor unit, and new 8” return duct to upstairs room. Reconnected high voltage, low voltage, drain line, gas line, vent pipe, and return ducts. Tested system operations in heating and cooling, set proper charge.