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No airflow from specific vents or clicking noise behind dashboard

Q: What are the symptoms of No airflow from specific vents or clicking noise behind dashboard in Ford F-350 SUPER DUTY?

No cold air from vents. Different temperature on both sides of the cabin. Weak or no heating in winter. No blowing from vents

Q: How to fix No airflow from specific vents or clicking noise behind dashboard in Ford F-350 SUPER DUTY?

After changing the settings from heating to cooling, the vents stopped producing the indicated temperature, setting DTC B1081:07 (in FCIM or HVAC modules). Diagnostics confirmed that the cam or mixer flap actuator was physically rubbing, blocked or jammed by accumulated dirt. As part of an effective repair, the air conditioning housing was removed, faulty cams were replaced, the flap bearing surfaces were lubricated with Motorcraft grease, and the actuator itself was additionally secured from the outside with a special flocked tape to isolate it from dust.

in Ford F-350 SUPER DUTY (2015-2020)

Symptoms

No cold air from vents
Different temperature on both sides of the cabin
Weak or no heating in winter
No blowing from vents

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Technical diagnosis (Premium)

Recognized technical fault:

Auxiliary controller voltage instability detected

Technical analysis

Detailed analysis of HVAC controller operation parameters, CAN bus data readings, and diagnostic signal waveforms. Purchase PRO access or log in to read the full fault analysis.

Confirmed solution

Complete step-by-step repair procedure including module non-volatile memory reset, sensor calibration, and correct wiring routing. Unlock the full report to see the instruction.

Parts needed

Filters ferrite anti-interference / noise suppressor
Auxiliary starting battery (depending on cell status)

Workshop hacks

Important workshop tips for mechanics regarding bypasses without expensive control module replacement and manufacturer software service bulletins.

TSB / TPI service bulletins

TSB-24-HVAC-01TPI-2068943/2

A/C Technical Specifications

Refrigerant specifications for this model are available in the catalog.

Open refrigerant database

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No airflow from specific vents or clicking noise behind dashboard

Symptoms

A/C Technical Specifications

Other problems in F-350 SUPER DUTY

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