Lennox AC Repair in Manor, TX – Control Board & Capacitor Replacement

Service Date: April 13, 2026 — Manor, TX When an air handler control board fails, a commercial HVAC system can shut down without warning — leaving a space without conditioned air until the problem is diagnosed and corrected. That’s the situation Setpoint Services technician Tito Perkins responded to in Manor, Texas on April 13, 2026.

Diagnostic Findings

Tito performed a full diagnostic inspection on a Lennox Air Handler (Model G40UH-36A-070-15, Serial #5910B16328). The inspection identified two primary electrical component failures driving the system outage:

• A defective control board inside the air handler
• An indoor blower motor capacitor testing below acceptable range

During the inspection, Tito also identified a degraded outdoor dual run capacitor serving both the compressor and condenser fan motor, a dirty condenser coil restricting heat transfer, and a clogged condensate drain line in need of flushing.

Repairs Completed

Tito completed the following repairs to restore full system operation:

• Replaced defective air handler control board
• Replaced indoor blower motor capacitor
• Replaced outdoor dual run capacitor (compressor & condenser fan motor)
• Cleaned condenser coil to improve heat transfer and system efficiency
• Cleared and flushed condensate drain line to ensure proper drainage

After all repairs were completed, the system was tested and confirmed to be operating properly. Addressing both the control board failure and the degraded capacitors in a single visit restores reliability and reduces the risk of repeat breakdowns.

Protect Your System Before the Next Failure

Capacitor degradation and control board wear are among the most common causes of unplanned HVAC outages — and they often develop gradually before causing a full shutdown. A preventative maintenance contract with Setpoint Services can catch these issues during scheduled inspections before they result in costly downtime. Setpoint Services provides commercial AC repair throughout Manor, Austin, Pflugerville, Round Rock, Georgetown, Cedar Park, and surrounding Central Texas communities. To schedule service, call 512-992-5537 or visit setpoint.services. Setpoint Services — Keeping Central Texas Cool, One System at a Time.