Step 9 — Start Components, Capacitors & Compressor Insulation Verification

⭐ TA-14 STEP 9 — START KIT, RUN CAPACITOR & COMPRESSOR INSULATION TEST

The step where guessing stops

What This Step Is For

This step shows three things:

• What parts are missing
  
  

• What parts are getting weak
  
  

• What parts are failing
  
  

It shows this with real proof, not opinions.

The homeowner sees the evidence themselves.
No fear.
No pressure.
No sales tricks.

This is the step that separates real professionals from guesswork.

Why Step 9 Happens Here

Before this step, you already:

• Verified airflow and blower health
  
  

• Fixed return and coil airflow problems
  
  

• Identified the metering device
  
  

• Sealed and reset the indoor system
  
  

• Opened the condenser carefully
  
  

Only now do electrical and compressor tests mean anything.

This step must happen before amp testing.
Without it, amp numbers don’t tell the truth.

Technician Mindset (No Exceptions)

Step 9 is:

• ❌ Not selling
  
  

• ❌ Not convincing
  
  

• ❌ Not dramatic
  
  

It is showing.

You:

• Explain
  
  

• Test
  
  

• Show the result
  
  

• Move on
  
  

You don’t wait for reactions.
You don’t pressure decisions.
Calm confidence builds trust.

SECTION 1 — START KIT: WHAT’S MISSING

What the Technician Does

• Bring the homeowner to the open condenser
  
  

• Point to the wiring diagram
  
  

• Show the start capacitor and start relay
  
  

• Then point to what’s actually inside the unit
  
  

Most of the time, what’s missing explains everything.

What to Point At

On the diagram:

• Start capacitor
  
  

• Start relay
  
  

In the unit:

• Contactor
  
  

• Run capacitor
  
  

• Control board (if present)
  
  

What to Say

“Right here on the diagram is a start capacitor and a start relay. The manufacturer says they can be installed at the factory or later.”

Pause.

“In real life, about 9 out of 10 systems never get one. That puts extra stress on the compressor every time it starts.”

Point to their unit.

“Your system is starting with only about 12 to 15 percent of the power it actually needs.”

Pause again.

“A compressor needs about 300 microfarads to start smoothly. Without a start kit, it’s trying to start using a 45-microfarad run capacitor. That hard start happens thousands of times a year — and that’s why compressors usually fail early.”

No fear.
No rush.
Just facts.

Key Ideas

• Start kit = easier starts + lower amps + longer life
  
  

• No start kit = hard starts + high amps + insulation damage
  
  

• The relay removes the start capacitor once running
  
  

• That removal makes it safe
  
  

If Price Is Allowed

“The installed price for a start kit is $389, including a three-year parts and labor warranty.”

Then move on.
No pressure.

SECTION 2 — START CAPACITOR TEST

(If One Is Installed)

What the Technician Does

• Shut off power
  
  

• Confirm power is off
  
  

• Discharge the capacitor
  
  

• Remove one wire only
  
  

• Measure microfarads
  
  

• Show the reading
  
  

What to Say

“This start capacitor is rated for ___ microfarads. Let’s check it.”

Let them read the meter.

“If it’s at or above the label, it’s strong. If it’s lower, it’s getting weak.”

If weak:

“It hasn’t failed yet, but replacing it reduces stress on the compressor.”

Then continue.

SECTION 3 — RUN CAPACITOR TEST

(Homeowner Watches)

What the Technician Does

• Remove only the HERM and FAN wires
  
  

• Leave COMMON connected
  
  

• Read the label (example: 45/5 µF)
  
  

• Explain the 10% rule
  
  

• Let the homeowner read the meter
  
  

What to Say

“This capacitor has two sections. One runs the compressor. One runs the fan.”

“This compressor side should be 45 microfarads. Using the 10% rule, anything below 40.5 is weak.”

Have them read it.

If good:

“That’s perfect.”

If weak:

“That’s below spec. A weak run capacitor makes the compressor run hotter and damages the insulation inside.”

No drama.
No lingering.

SECTION 4 — COMPRESSOR INSULATION TEST

The most important test

What This Test Does

This test does not measure volts or amps.

It measures the insulation inside the compressor motor.

That insulation is what keeps the compressor alive.

What the Technician Does

• Make sure fan wires aren’t touching ground
  
  

• Connect:
  
  

  • Red lead → compressor wire
    
    

  • Black lead → ground
    
    

• Explain the test
  
  

• Press the button
  
  

• Let the homeowner watch
  
  

What to Say Before Testing

“Inside your compressor is a steel shaft wrapped thousands of times with copper wire.”

“That wire has insulation on it. Heat, high amps, and acid slowly break that insulation down.”

“This tool tests the insulation itself.”

Then press the button.

How to Explain the Result

• No light / infinite
  
  
  “Perfect. Over 1,000 ohms. Excellent insulation.”
  
  
  

• Green (100–1,000 ohms)
  
  
  “Healthy. Normal wear.”
  
  
  

• Yellow (about 90% insulation loss)
  
  
  “It hasn’t failed yet, but it’s wearing out. It’s running on borrowed time.”
  
  
  

• Red (about 98% insulation loss)
  
  
  “This is a burnout reading. The insulation is almost gone. Failure will happen — we just don’t know when.”
  
  
  

No fear.
No exaggeration.
Just physics.

Why This Step Matters

Because:

• Nothing is guessed
  
  

• Nothing is hidden
  
  

• Nothing is exaggerated
  
  

• The homeowner sees the truth
  
  

That’s how TA-14 builds real trust.

Why Step 9 Comes Before Amp Testing

This step explains what amps will show next:

• No start kit → high starting amps
  
  

• Weak run capacitor → high running amps
  
  

• Bad insulation → burnout risk
  
  

• High pressure → even higher amps
  
  

Without Step 9, amp numbers are just numbers.

What Must Be Documented

Record:

• Start kit present or missing
  
  

• Start capacitor reading
  
  

• Run capacitor reading
  
  

• Insulation color and ohms
  
  

• Wiring condition
  
  

• Contactor condition
  
  

• Any oil, scorching, or debris
  
  

This documentation makes TA-14 defensible.

Step 9 Complete

At this point, you have:

• Educated the homeowner
  
  

• Shown what’s missing
  
  

• Measured what’s weak
  
  

• Proven what’s failing
  
  

• Used no pressure
  
  

• Used no opinions
  
  

• Used only evidence
  
  

This step creates:

• Trust
  
  

• Confidence
  
  

• Fewer callbacks
  
  

• Technician authority
  
  

• Company reputation
  
  

👉 Proceed to Step 10 — Compressor & Fan Motor Amp Draw Analysis