Laurel, MD Air Conditioning, Heating and Plumbing Services
Supreme Air provides Air Conditioning, Heating and Plumbing Services, Repair, Installation, Maintenance, and Tune Up in Laurel, MD and surrounding areas.
Check out what some of our customers are saying about Supreme Air.
for Laurel, MD
Theresita - Laurel, MD
Good estimate, bad scheduling
Reid - Laurel, MD
I was scheduled for a noon-4pm appointment, but the tech didn't show until 6:30pm. He was professional and provided a good estimate while there but I didn't appreciate waiting around so long.
wothwhile service plan
Stiltner - Laurel, MD
Service plan is worth the twice a year tuneups, thank you.
Very good service
Hui - Laurel, MD
Technician is very polite and patient.
Upon arrival I was told that unit wasnâ€™t running at all. During diagnostics I found system locked out on RPM/Airflow fault. Found lockout condition doesnâ€™t send voltage so I couldnâ€™t diagnose without resetting system. Once system reset, blower motor came on and was running at fan only speed. Waited until compressor delay was off then ran ac, fan increased speed and then again for 2nd stage. Measured delta air temps and checked every register. Found no airflow restrictions, filter and coil are clean. Checked return and supplies and found no issues. Delta air temp at Evap coil is 24 degrees. Suspecting intermittent faults with blower motor, quoting customer to replace. Customer declined at this time, will monitor the system and let us know.
I filled in parts order form. I spoke with dispatcher. We need to return with the parts to finish flue piping. Unit is operational now.
08/09/19 On arrival turn off the unit from disconnect box recover the refrigerant take out old compressor put new compressor breeze it tested with nitrogen no leaks vacuum the unit to 550 microns no leaks recharging the unit with 410A 8lbs and 10 oz tested start up checked electrical connections checked voltage and amps measured supply and return air temp measured subcooling and superheat unit operating normal at this time. Collected balance for the job $1430.25 on Check #570
I checked in and out with store manager and BAS. I went on the roof and found a leg of the power had voltage but it was dropping voltage. I removed the cover to the disconnect panel and found where the disconnect had burnt. I turned power off, even though the phase monitor was keeping the unit from operating. I took a picture of the part. I made a part estimate form and a quote sheet. I looked the part up with the numbers provided and it is easy to find. The office needs to finalize the quote ASAP and submit to corporate for approval. RTU #2 is not operational.
On arrival customer informed me that unit froze up then they turned power off .i then restored power back on ,unit flashing 10 code .unit started normal .checked pressures ,checked blower ,i then called tech support and advised me to change top circuit board with part number:cnt07750. Unit is operating normal at this time Customer informed that they purchased an extended warranty when they first bought the system plz check .
When I arrived I removed cover to furnace, taking some pictures and then installed 3 sensors to coils. Reinstalled covers and started up system, checked my dealt T. 58* coming out and the return air 76*
On arrival set units to call for cooling measured supply and return air temp 6 degrees DT measured voltage and amps inspected electrical connections checked drain checked air filter checked evaporator coil checked all other electrical connections in indoor unit air handler checked condenser coil outdoor Heat pump checked electrical connections checked voltage and amps checked compressor capacitor measured subcooling and superheat no DT checked pressure and temp I found my both side my gauge 200 psi checked compressor checked all wires checked close the liquid line my low side gauge stayed to 200 psi I found the compressor is not pump preon I gave quote for customer to replace the compressor customer accepted I ordered the compressor we have to come back to finish the job I turn off the outdoor unit from disconnect box. Collected $89 dispatch fee and customer sign new service agreement he paid the full amount for 1 yer $199.92 also 1,311.08 for deposit for compressor repair total 1,60
Upon my arrival I noticed the house has 3 zones. I checked the operation of the zone damper on zone 3, the one in question. I found proper air flow out of one vent in each room, and realized that the other floor vent in each room was a return air duct as there was no air pushing out. I also confirmed this with a visual inspection. The package unit was cooling with 20+ degree delta temperatures across the evaporator coils. Customer replaces the filter normally. I checked the electrical wiring and electrical systems, for potential problems and found the run capacitor was 35% depleted and that the ground loop needed pressure. Customer signed up for service membership, but I did not do a maintenance but I did pressurize the ground loop to 65psi. I replaced the 45uf run capacitor and tested the unit again. Unit operating normal. Customer has the 2 maintenances to schedule. Customer wanted to put the membership payment on a separate card so I have that information on the paperwork to turn
On arrival unit was off ,restored power back .set unit to call for cool.unit responded ok .checked system pressure ,subcool 12 .noticed indoor system flashing 10 times .spoke to tech support and advised me to replace sensors at the indoor unit and step motor for eev .unit is operating normal at this time but could freeze again.
Service call on 07/08/19 On arrival set unit to call for cooling we was replaced the expansion valve 2 weeks ago checked electrical connections checked voltage and amps checked filter checked drain checked condenser coil checked pressure and they are ideal indicating zero leaks checked compressor capacitor checked electrical connections checked voltage and amps also I was call trane tech support I ask some questions why is unit freezing up they was telling me mean things to check like pressure and temp also air filter and some of the sensor I checked all it but I donâ€™t found problems tested unit measured supply and return air temp measured voltage and amps inspected unit operating normal at this time. If freezing up again we have to replaced the temp sensor no payment collected customer needs to talk dispatcher from the office.
Upon arrival was informed rtu 6 was having issue with duct smoke detector, verified sensors getting voltage and cleaned sensing tubes, restarted system and verified system not sending any alarms and operating normal.
Checked condensate line. Found the line sealed properly.
Upon arrival I spoke with Manager Mark and he informed me that back office area was hot the other day but system was reset and has been operating normally since. Called Property Management company and spoke with Vanessa, I checked in with her and she transferred me to Phillip with the BAS system. Per Phillip, RTU 8 was the unit with problems the other day but is currently satisfied. He overrode the unit and called for ac. We checked operation and found no problems. He then asked me to find remote indoor sensor and checked temperature. Found indoor temp at sensor reading 69.6 degrees, setpoint for 70 and unit currently at 70. Phillip said all other units are either satisfied or close to satisfying. He told me to inform manager that unit is operating normal and for him to call back if indoor temp rises again.
On arrival set unit to call for cooling measured supply and return air temp . Covered evaporator lineset hole.checked refrigerant pressure .unit operating normal
System running good, cleaned filter, contactor burnt, customer agreed to replace, system still running good. Customer interested in duct cleaning service, gave estimate and customer will contact office to schedule. iPad wonâ€™t scan check, have payment.
Upon arrival found auxiliary pan completely rusted out and leaking water through roof, drain lines do not have downward slope and have hard 90s instead of a trap, quoted customer for total rehab of condensate system. AC system is at least 15 years old. Advised customer think about new system instead of costly repair to replace system. Wants to talk to salesman about pricing.
On arrival the thermostat has error code E5 low air flow I reset the unit the unit is comes on but is going back off gave me same codes checked electrical connections checked air filter checked everything but is not operating normal I call tech support for calmate Master I checked everything with the technician I found the unit low on charge I checked if has any leak no leaks I charge the unit with less than a pound changed the air filter checked electrical connections checked voltage and amps checked compressor capacitor measured supply and return air temp unit tested unit operating normal at this time. No charge for this trip.
I replaced the electronic expansion valve and bi flow filter drier. I pressurized the system to 250psi and let hold that pressure for ten minutes. I then used that nitrogen to flush the lineset from high to low. I installed all new valve stems and then pulled the system into <500 micron vacuum and charged to factory specification with new r410a refrigerant, 8lb 4oz. I tested the units operation. Normal refrigerant pressures and 20+ degree delta temperatures across the evaporator coil. Customer paid balance of the repair.
On arrival removed existing Ac breaker and installed new 25 amp breaker per work order.unit is operating normal at this time
Performed ac pm on all units. Cleaned outdoor coils with high pressure spray. Replaced all filters. All belts in good condition. Inspected Evap coils and blowers. Flushed out drain pans and traps. Checked capacitors and contactors. Tightened electrical connections. Ran ac. Measured amp draw of compressors, od fans, and blowers. Checked delta air temps at all coils. Found Unit 5 run cap out of spec. Found Unit 4 condenser fan motor not running when being supplied voltage. Quoting customer.
Replace 2 main valves above and below meter in basement
On arrival system was not cooling, outdoor unit short cycling on low pressure switch, system pressures normal when operating in heat mode. Test opened eev and removed step motor system pressures normal. Eev found to be at fault. Need to order WHOLE EEV ASSEMBLY AND SENSORS. Unit not operating in cooling mode.
Upon arrival I found thermostat reading service needed but says no faults recorded. Went to unit and found system flashing lockout but only code registered was 8, UPS warning, which doesnâ€™t translate to a lockout code only a warning of a short period in which unit was running inefficiently. Checked all wiring and components and found nothing out of place. Reset fault and ran system. Checked all parameters and found normal air flow, normal delta air temps, normal water flow, normal delta loop pressures and temps, normal amperage and Voltage. System is operating normal and I cannot determine why it locked out. Once reset unit ran perfectly normal. Asked customer to call us if they experience a similar problem.
On arrival checked thermostat was calling for cooling. Measured return temperature, supply temperature, amps, voltage, and capacitor. Inspected electrical connections, filter is clean, cleaned condensate drain line, blower wheel is clean, evaporator coil is clean, and contactor is ok. Unit is operating normal at this time.
Warranty call on 04/24/19 On arrival turn off the power supply take out the blower motor replaced it. put the new blower motor tested start up checked electrical connections checked voltage and amps measured supply and return air temp unit began operating very smoothly without any hesitating. Unit operating normal at this time.