# Heat exhaustion, fatigue at Johnson Controls
> OSHA SIR `2025077163` · 7/23/2025 · RED BUD, ILLINOIS
## Severity
- **1 hospitalization**
- **Body part:** BODY SYSTEMS
- **Nature of injury:** Heat exhaustion, fatigue
## Cause
- **Event:** Exposure to environmental heat  indoor
- **Source:** Heat environmental
- **Secondary source:** Secondary source not applicable
## Employer
- **Name:** Johnson Controls
- **Location:** 325 Spring St, RED BUD, ILLINOIS, 62278
- **NAICS:** 238220
- **Jurisdiction:** 1
## Narrative

On July 23, 2025, an employee was conducting HVAC work in a mechanical room that had an ambient temperature of 110- to 120-degrees. At the end of the day, he experienced dizziness, cramping, and became ill. The employee was hospitalized for heat stress and dehydration.

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*Source: [OSHA Severe Injury Reports](https://www.osha.gov/severe-injury-reports) · MORVS · CC0 1.0*