755A0000-04 — Reheater Repair & Overhaul

Component Overview

A reheater is a compact air-to-air heat exchanger within the air-cycle refrigeration loop, working closely with the condenser to manage moisture and improve cooling efficiency. It reheats cold, turbine-discharge air using warmer process air, raising temperature ahead of the condenser so that water vapor condenses effectively and is extracted before reaching the cabin, while recovering energy in the loop. Its primary function is humidity control and thermal staging within the pack. As a brazed plate-fin core, it is subject to fin fouling, internal contamination, corrosion, fatigue cracking, and braze-joint or header leaks that allow cross-leakage between the two air streams. These failures reduce condenser water-extraction performance and pack efficiency, prompting cleaning, leak repair, and overhaul to restore core effectiveness and integrity.

Aircraft Application

Part number 755A0000-04 (Reheater) is installed on the Airbus A320. QTC supports operators and MROs servicing this platform with certified repair and overhaul.

Our Repair Capability

QTC repairs and overhauls 755A0000-04 to the original manufacturer's specifications under our FAA and EASA Part 145 approvals. Our team — including former OEM heat transfer engineers — performs teardown, inspection, cleaning, component replacement, functional testing, and certification, returning a serviceable unit with the appropriate airworthiness release. We also develop repairs for rejected and beyond-economic-repair (BER) hardware.

View Reheaters & Condensers capability →

Related Parts

Other reheater part numbers we repair — view all Reheater parts →

Frequently Asked Questions