Erj-145 flight crew reported a pressurization problem that resulted in a return to the departure air...

Narrative:

While conducting our flight; we received an aircraft that had pressurization issues repaired. During climbout; the aircraft would not pressurize; so we descended and utilized the QRH. The manual mode of pressurization did not work; we contacted ATC and descended to an altitude for passenger comfort. We selected flaps 9 and lowered the landing gear to burn off fuel. We coordinated with ATC; company; maintenance; and crew member for the return to ZZZ. We landed in ZZZ and returned to the gate. The manual pressurization did not work; and we lost the readout of the cabin pressurization; rate of descent; pressure differential. When we got to the gate; the manual dump button did not release pressure. It took 30 minutes to relieve the pressure to open the cabin door for passengers to deplane.several threats: low altitude in busy environment; air return with large quantity of fuel to burn off; passenger displeasure; added flying to an already long day; delays for the next flight; unable to evacuate passengers in case of fire on ground and could not open the doors or windows. Passengers included small children and babies and elderly that lack of oxygen will affect sooner than adults.our maintenance at [company] seems to be declining; I have flown more 'broken airplanes' in the past 3 months than I have over my 16 year career.

Original NASA ASRS Text

Title: ERJ-145 flight crew reported a pressurization problem that resulted in a return to the departure airport.

Narrative: While conducting our flight; we received an aircraft that had pressurization issues repaired. During climbout; the aircraft would not pressurize; so we descended and utilized the QRH. The manual mode of pressurization did not work; we contacted ATC and descended to an altitude for passenger comfort. We selected flaps 9 and lowered the landing gear to burn off fuel. We coordinated with ATC; company; maintenance; and crew member for the return to ZZZ. We landed in ZZZ and returned to the gate. The manual pressurization did not work; and we lost the readout of the cabin pressurization; rate of descent; pressure differential. When we got to the gate; the manual dump button did not release pressure. It took 30 minutes to relieve the pressure to open the cabin door for passengers to deplane.Several threats: low altitude in busy environment; air return with large quantity of fuel to burn off; passenger displeasure; added flying to an already long day; delays for the next flight; unable to evacuate passengers in case of fire on ground and could not open the doors or windows. Passengers included small children and babies and elderly that lack of oxygen will affect sooner than adults.Our maintenance at [company] seems to be declining; I have flown more 'broken airplanes' in the past 3 months than I have over my 16 year career.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1689581
Time
Date	201910
Local Time Of Day	0601-1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Pressurization System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Erj-145 flight crew reported a pressurization problem that resulted in a return to the departure airport.