Neurodiversity on the Crew
Why this matters
Plenty of people who struggled in a classroom found the trades, because the trades reward what they were good at: seeing how a system works, troubleshooting with their hands, staying calm when something is going wrong. Some of those people are dyslexic or have ADHD, and many of them were never told so. They are often among a shop's best diagnosticians, and they are also the techs whose work orders come back half-filled, who miss the third of three verbal instructions, and who quietly dread the license exam. A shop that reads those friction points as carelessness loses good techs over paperwork. A shop that understands them changes a few things about how it instructs, and keeps them.
What the words mean
Neurodiversity is the idea that brains vary in how they process information, and that some of those variations (often called neurodivergent ways of thinking) are differences rather than defects. It is a description, not a diagnosis.
Dyslexia is a specific learning difference that affects decoding written words: reading speed, accuracy and spelling. It has nothing to do with intelligence. A dyslexic tech may read a wiring diagram fluently and struggle with a page of dense text about the same circuit. Estimates of how common it is vary with the definition; the International Dyslexia Association suggests that as many as 15 to 20 percent of people have some symptoms, with a smaller share meeting a formal diagnosis.
ADHD (attention-deficit/hyperactivity disorder) is a difference in how attention and impulse are regulated. In adults it shows up less as hyperactivity and more as trouble starting tedious tasks, losing track of time, forgetting the last step of a sequence, and, on the other side, an ability to lock onto an interesting problem for hours. That lock-on is often called hyperfocus.
Other conditions sit under the same umbrella, including dyspraxia (coordination and planning) and autism. This card focuses on dyslexia and ADHD because they are the two a field-service manager is most likely to meet without knowing it.
Where the friction lands in a trade shop
The trade itself is rarely the problem. The friction sits in the parts of the job that run through text, sequence and memory.
| Part of the job | Where it catches a dyslexic tech | Where it catches a tech with ADHD |
|---|---|---|
| Work order notes | Typing on a phone is slow and spelling is exposed to the office | Notes get left "for later" and later never comes |
| Long written SOPs | Hard to extract the steps from paragraphs | Hard to stay with the document long enough to find step 9 |
| Verbal instructions | Usually fine | Three instructions given at once, the third is gone |
| Close-out steps | Photo labels and forms | The closing steps are the ones that get skipped |
| Time estimates | Usually fine | Running long without noticing |
| License and certification exams | Timed reading under pressure | Long sustained attention on a timed test |
None of this is universal, and the columns are not diagnoses. Plenty of people struggle with both columns, and plenty of people with neither condition struggle with some of these. The table is a map of where to look, not a sorting tool for people.
Instruction changes that help everyone
The most useful principle is to change the instruction rather than the person. Almost every adjustment that helps a dyslexic or ADHD tech also helps a new hire, a tired tech and a tech whose first language is not English.
- Show, then have them do it, then have them explain it back. Demonstration and teach-back carry a procedure without depending on anyone's reading. The sibling card on adapting training covers the method in full; see related: Adapting Training for a Tech Who Struggles With Reading.
- One instruction at a time, then a written follow-up. Spoken for the dyslexic tech, written for the one who will forget the third item. Sending both covers both.
- Checklists with pictures, in a fixed layout. The same close-out list in the same order every job, with a photo of what "done" looks like next to each line.
- Voice-to-text for notes, and an office that does not mock the spelling it produces.
- Photos as documentation. A required set of before and after shots says more than a paragraph and takes less time.
- Close out before leaving the driveway. Do the paperwork while the job is still in front of you, instead of "later in the van."
- Break the long job into named checkpoints with a quick check-in to dispatch, which catches the drifting time estimate without anyone nagging.
What a manager deliberately does not do
This is the half that matters most, because the well-meaning moves are where shops go wrong.
Do not diagnose. Saying "I think you might be dyslexic" or "sounds like ADHD to me" is off-limits, however kindly meant. You are not qualified to make the call, you may be wrong, and under the federal Americans with Disabilities Act an employer's medical questions to a current employee must be job-related and consistent with business necessity (42 U.S.C. 12112(d)(4)). Speculating about a condition can also set you up to be seen as treating someone as disabled, which carries its own legal exposure.
Do not ask "is something wrong with you?" in any form. Ask about the task: what gets in the way, what would make it easier.
Do not treat a friction point as a character flaw. Writing up a strong diagnostician for "careless paperwork" without first asking what makes the paperwork hard teaches him to hide the problem, and hiding is how good techs end up quitting over a form.
Do not fix it with more text. The instinct when a written SOP is not being followed is to write a longer, more detailed one. For a tech whose friction is the text, that makes it worse.
Do not share what you are told. If a tech discloses a diagnosis, that information is confidential medical information. It goes in a separate file, not the personnel file, and it does not get mentioned to the crew.
Do not lower the standard. The adjustments change how the work is taught and recorded, not what "done right" means. A neurodivergent tech is entitled to a fair route to the standard, not a softer standard, and most of them would be insulted by one.
The legal layer
The ADA's employment provisions apply to employers with 15 or more employees. Several states reach much smaller shops: California's Fair Employment and Housing Act applies at 5 or more, and New York and New Jersey's anti-discrimination laws reach employers of any size. Check your own state; a five-person shop is often covered by state law even where the ADA does not reach.
Where a law applies and a tech tells you they have a condition and asks for an adjustment, you are expected to engage in an interactive process: a good-faith conversation about what limitation they face and what would help, ending in a reasonable accommodation unless it would cause undue hardship. Most of the accommodations here (voice notes, picture checklists, written follow-ups) cost close to nothing. Where the condition is not obvious, the law generally allows you to ask for reasonable documentation of it, but only after they have asked for an accommodation, not before. This is not legal advice; if a request turns into a dispute or you are unsure whether you are covered, talk to an employment attorney before you say no, and walk in with the request, the job description and what you have tried.
Worked example: the closeout problem
A four-year HVAC tech is the shop's go-to for intermittent faults. The office complains that his job closeouts are incomplete: no notes, missing photos, the equipment fields blank. Over two weeks, 9 of his 22 jobs closed incomplete, about 41 percent, against a shop norm of a few per tech.
The three tempting moves, and why each was out. The service manager's first thought was "I bet he's dyslexic," which is a diagnosis and not his to make. His second was a written warning for carelessness, which would have punished the symptom without finding the cause. His third was a more detailed written closeout SOP, which would have added text to a problem that might be text.
What he did instead. He asked about the task, in the van, privately: "Your diagnostics are the best we have. The closeouts aren't landing. What gets in the way?" The tech said typing notes on his phone was slow, so he saved them for the end of the day, and by then he had forgotten half of what he had done and could not face it.
The changes. Voice-to-text for the notes field, with the office told to stop correcting spelling in the job record. A four-photo required set (nameplate, before, after, the work area) with a small picture prompt for each. And a rule that closeout happens in the driveway before the van moves.
The result. Over the next two weeks, 2 of his 24 jobs closed incomplete, about 8 percent, in line with the rest of the crew. A month later, he mentioned on his own that he is dyslexic and asked whether the shop could help him arrange extra time for his upcoming license exam. That request is now an accommodation conversation, and it goes to the sibling card on training and exams.
What would have changed the call. If he had disclosed first, the same changes would have been an accommodation made through the interactive process and documented as one. If the closeouts had not improved after the changes, the next step would still be another conversation about the task, not a diagnosis.
Where reading cannot be routed around
Some text is safety-critical: a safety data sheet, a chemical label, a lockout tag, a manufacturer's installation warning, a gas-valve instruction. Those cannot be skipped because they are hard to read. What can change is how the content reaches the tech: someone reads the critical section aloud with them, the key warnings are turned into a picture card, or a text-to-speech tool reads the document. The standard is that the tech understands the hazard and the control before acting, and the check is that they can tell you both in their own words. A tech who cannot get that from the document by any route does not do the task until they can.
References
- Americans with Disabilities Act, Title I (42 U.S.C. 12111 et seq., including 12112(d)(4) on medical inquiries); EEOC guidance on reasonable accommodation and the interactive process
- International Dyslexia Association, definition and prevalence estimates
- California Fair Employment and Housing Act; New York State Human Rights Law; New Jersey Law Against Discrimination
- See related: Adapting Training for a Tech Who Struggles With Reading