Rooftop Unit
Product service snapshot
WeatherMaker® Puron Advance™ Single-Packaged Rooftop Units with EcoBlue™ Technology is a Carrier® rooftop unit record from the Carrier Enterprise catalog. Product family: 48FE. Green Flow Solution uses this page for commercial model identification, service planning, maintenance conversations, repair diagnostics, and replacement matching.
Technical snapshot
Service planning
Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.
Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.
Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.
GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.
Share the exact alarm, fault, or status message shown on the unit controller, thermostat, service app, or building automation system. Photos of the control screen, unit nameplate, and thermostat/BAS screen help the team understand the issue before dispatch.
Confirm the thermostat or building schedule, whether one tenant space or multiple zones are affected, recent filter or maintenance history, and whether the RTU is locked out, noisy, short cycling, or not responding. Do not open rooftop panels or reset electrical equipment if it is unsafe.
Possible causes include airflow restrictions, dirty filters, economizer or damper issues, sensor or control faults, compressor or reversing-valve issues, defrost problems, refrigerant concerns, electrical faults, or building automation scheduling. A technician needs the full symptom and alarm context to diagnose it safely.
Treat the request as urgent when no heat or no cooling affects occupied space, an alarm or lockout is active, there is electrical odor, unusual noise, water intrusion, unsafe rooftop access, or repeated tenant comfort complaints. Include business hours and access notes when scheduling.
Popular cities
Try another nearby city or contact GreenFlow to confirm service availability.
They are very professional and reliable.
My furnace stopped blowing out heat on a Saturday night during the winter and these guys came over in an hour! Andrey identified that a part had broken (high limit switch) that needed to be ordered. Fortunately for us, he was able to find a workaround solution that...
Andrey was great. Very timely and fixed our HVAC easily. Would love to have him again
Andrey and his team did a great jobs for us. We manage over 100+ properties in greater Boston area, and Andrey is the right person for HVAC solutions. Greatly appreciated.
Excellent work. On time, efficient, and helpful. Thank you!
Great service! They were able to perform complex repairs as I requested. Instructed me well on future maintenance. Worked fast. Suggested future improvements. Great team, highly recommend.
