Silver Spring, MD Air Conditioning, Heating and Plumbing Services
Supreme Air provides Air Conditioning, Heating and Plumbing Services, Repair, Installation, Maintenance, and Tune Up in Silver Spring, MD and surrounding areas.
Check out what some of our customers are saying about Supreme Air.
for Silver Spring, MD
Sting tune up
Link - Silver Spring, MD
Response from Supreme Air:
Thank you for taking the time to submit this review. We are so glad to have provided you with such excellent service. We're looking forward to our visit in the fall to check your heating system. Thank you for being a member. Have a supreme day!
Dave - Silver Spring, MD
Technician Yonas Mengesha was great, explained everything he did. Would recommend to anyone based on this experience.
Mr - Silver Spring, MD
On arrival found system has a leak,customer bought new coil and outdoor unit to be installed on Thursday
No need to do a leak search because the suction line at the condenser was crimped and cracked. The customer had moved the condenser over a few feet during the winter time. The unit is on a pad and customer was happy with its position. I brazed in some pipe to fix the leak. I replaced the filter drier indoors. I replaced the valve stems and installed brass valve caps. Pressurized with nitrogen to 250psi and let it hold to prove that there were no other leaks or leaks on what I had repaired. Flushed lineset with the nitrogen and pulled into a 500 micron vacuum. Charged system with 8lb oz of r410a until I had 9 degrees subcooling and more than 20+ degree delta temperatures across the evaporator coil. Unit operating normal. Advised the customer that the unit will need to operate for some time to reduce the heat in the home. It was 83 degrees when I left. Customer signed up for service membership today so I waived the trip fee and the repair was discounted by 15%.
On arrival set thermostat to call for cooling. Measured return temperature, supply temperature, amps, voltage, EWT,LWT,EWP, and LWP. inspected electrical connections, contactor is ok, filter is clean, evaporator coil is clean, and blower wheel is clean. I cleaned condensate drain pan as well as the condensate drain line. Measured voltage absorption system rated for 30mfd. Actual reading 29.81mfd. System shows no faults at this moment. Recommended a wet switch and a uv-light. System is operating normal at this time.
On arrival I removed defective uv light .i then installed new uv light .tested it .unit operating normal
Spring Pm On 04/25/19 On arrival set unit to call for cooling measured supply and return air temp measured voltage and amps inspected electrical connections checked drain and cleaned checked filter and replaced checked EWP and LWP also TEMP is good checked compressor capacitor unit tested unit operating normal at this time. Recommended UV lights installation.
Invoice created to clear up AR
Both the evaporator and condenser coils are clean, as well as the blower wheel and media filter. Blower is set on high speed for cooling and itâ€™s op properly so airflow is not the issue with the unit on cooling by 14.5 degrees across the evaporator coil. I placed gauges on the system along with pipe clamp thermometers and let the system run at least 10 minutes before taking my readings. Suction pressure low, discharge pressure low to normal but 32 degrees superheat. There is a refrigerant leak either in the system and most likely in the evaporator coil. The unit uses r22 so the EPA does not allow for topping off. I gave the customer 2 estimates, both include a leak search. One estimate to fix the leak if itâ€™s mechanically fixable and one to replace the evaporator coil. Both would include charging with conversion refrigerant. Customer is not sure what they want to do and also wanted a free sales estimate. A sales person is scheduled to come next Saturday, 04/27.
On arrival set unit to call for cooling measured supply and return air temp measured voltage and amps inspected electrical connections checked drain and cleaned it,checked coils,contactor,caps ,unit operating normal
Upon arrival I was told that compressor was making loud squeaking noises. Customer also asked how to replace humidifier pad. Went to furnace and showed customer how to replace humidifier pad and clean drain because he would like to do this himself moving forwards. Put gauges on ac unit and called for ac from thermostat. Ran ac and didnâ€™t hear noise customer was referring to but I found low suction pressure and no Superheat, suction line frosting. Went to furnace and found furnace only moving 900cfm and running in continuous fan, not high cooling. Found thermostat wires for ac connected to Y2 and not Y1. Installed jumper wire from Y1 to Y2 because this is a single stage ac unit. Called for ac again and furnace now moving 1800cfm. Went to outdoor unit and we now have normal Superheat and subcool, refrigerant looks normal. Compressor and od fan amperage normal. Closed discharge line to test compressor pump down and found compressor pumping down normally. Shut off ac unit and checked ohm
I operated the unit on second stage cooling mode. Flow rate was proper as well as heat of rejection. I pressurized the ground loop to 65psi. I checked the electrical wiring and electrical systems, all were within specification except for the compressor run capacitor which was replaced. I then went to the air handler and decreased blower speed using the dip switches to quite the motor. Delta temperatures of 20+ degrees across the evaporator. I cleaned the condensate pan and drain lines and ran hot water to flush the debris out and to make sure it was draining properly. Unit operating normal.
Wrong low voltage wires connected at the condenser unit. I had to go into the drop ceiling to make sure I was connecting to the right wires. I operated the unit measured delta temperature across the evaporator coil. Unit operating normal. I called the installation manager regarding some questions and was given approval to close out the invoice as a warranty call. It was installed correctly but never tested to make sure it was wired correctly.
On arrival set units to call for cooling measured supply and return air temp measured voltage and amps inspected electrical connections checked drain and cleaned it ,checked all components.checked ductless system.also customer purchased new 24 v blue tube uv light .
Spring Pm On 04/03/19 On arrival set unit to call for cooling measured supply and return air temp measured voltage and amps inspected electrical connections checked drain and cleaned checked filter cleaned checked condenser unit coil cleaned checked capacitor unit checked psi is good tested unit operating normal at this time. Recommended duct cleaning also Uv lights installation customer have problems with humidity I gave quote for customer his agreed with duct cleaning and humidifier installation he will call us when his ready.
I operated the units on second stage cooling mode and recorded 20+ degree delta temperatures across the evaporator coils. I checked the electrical wiring and electrical systems, all are within specification. I recommend installing Intellistart on unit #1. I confirmed proper flow rate and hea of rejection. I cleaned the condensate pans and drain lines and ran hot water to flush the debris and to make sure they drained properly and that the condensate pump was working properly. Customer washed out pre filter for unit #1 while I was working. Unit #2 had a filter recently installed. Both units are operating normal. I recommended adding a Blue Tube ultra violet light and EZ Trap to Unit #2.
On arrival checked both thermostat were calling for cooling. Measure return temperature, supply temperature, amps, voltage, electrical connections, blower wheel is clean, evaporator coil is clean, condenser coil is clean, electric filter is clean. Unit operating normal at this time.
On arrival checked thermostat was calling for cooling. Measures temperature coming in, temperature going out, amps, voltage, electrical connections, replace dirty filter(16x20x1). Contactor, voltage absorption system. I also found a filter stucked in the return duct causing a restriction in the airflow. Removed it and replace dirty filter. Unit is operating correctly at this time.
Find low voltage short and repair wire . I cut out wire that rubbed on a hanger in attic . It was on the outdoor thermostat wire . Re-connected wire and checked operations .
On arrival Drained water down ,removed old canister ,i then installed new canister .tested it .unit on normal
On arrival found unit not operating normal due to a defective condensate pump. I replace it, tested it, and unit is operating normal at this time.
On arrival found thermostat blank ,found condensate pump not operating despite of existing power .found bad pump .need to replace the condensate pump ,customer paid in full
Fall pm on 03/11/19 On arrival set unit to call for heat measured supply and return air temp measured voltage and amps inspected electrical connections checked drain and cleaned checked filter and replaced checked water pressure in and out unit tested unit operating normal at this time.
Paid $58 trip charge in cash