Home/Experts/Shaun Cain
Shaun Cain

Shaun Cain

Certified HVAC & Refrigeration Technician
✓ Verified Expert30 years experience763 cases solved
Chat with Shaun — $1 →

About Shaun

Shaun Cain is a Certified Refrigeration and Air Conditioning Systems Mechanic and Journeyperson licensed through Skilled Trades Ontario (STO ID: 13215743, Trade Code 313A). With a Certificate of Qualification issued in 1995, Shaun brings over 30 years of professional experience in HVAC, refrigeration, and home systems. He specializes in diagnosing heating and cooling problems, troubleshooting thermostats, and helping homeowners with general home maintenance and repair. His decades of hands-on experience allow him to quickly identify issues remotely through targeted questioning, helping homeowners determine whether a problem is a simple DIY fix or requires a professional visit.

How consultations work: When you start a session in this category, your question is answered by a qualified professional with verified expertise in ac and heating troubleshooting. All advice is reviewed for accuracy and backed by our 100% money-back guarantee. Learn about our expert verification process.

Credentials & Certifications

✓Refrigeration & AC Systems Mechanic — Certificate of Qualification
✓Ontario Trade Code 313A — Journeyperson
✓Skilled Trades Ontario STO ID: 13215743
✓Journeyperson Classification — Status: Active
✓Credential valid through May 2027
✓ Verify credentials on government register

Areas of Expertise

AC and heating troubleshootingRefrigeration system repairThermostat and HVAC issuesHome maintenance and repairAppliance troubleshootingEnergy efficiency optimization
763
Cases Solved
30 yrs
Experience
15
Articles Written
7
Questions Answered

Articles by Shaun

Furnace & AC Troubleshooting: DIY, Service, or Replacement? (2026 Guide)
Furnace & AC Troubleshooting: DIY, Service, or Replacement? (2026 Guide)
14 min read
Chat with an HVAC Technician Online: $1 Flat Fee, 30-Year Certified Tech
Chat with an HVAC Technician Online: $1 Flat Fee, 30-Year Certified Tech
7 min read
HVAC Contractor Quoted Me $X — Get a Second Opinion for $1
HVAC Contractor Quoted Me $X — Get a Second Opinion for $1
5 min read
Emergency No-Heat or No-AC Help: $1 Online HVAC Tech in 2 Minutes
Emergency No-Heat or No-AC Help: $1 Online HVAC Tech in 2 Minutes
5 min read
How to Patch a Hole in Drywall (Any Size, Step-by-Step)
How to Patch a Hole in Drywall (Any Size, Step-by-Step)
12 min read
How to Paint a Room Perfectly (Professional Results)
How to Paint a Room Perfectly (Professional Results)
8 min read
How to Fix Squeaky Floors (Without Tearing Them Up)
How to Fix Squeaky Floors (Without Tearing Them Up)
5 min read
AC Not Cooling? 6 DIY Fixes Before Calling HVAC
AC Not Cooling? 6 DIY Fixes Before Calling HVAC
6 min read
How to Get Rid of Ants in Your House (Fast and Permanent)
How to Get Rid of Ants in Your House (Fast and Permanent)
6 min read
How to Clean a Dishwasher (It Cleans Your Dishes, But Who Cleans It?)
How to Clean a Dishwasher (It Cleans Your Dishes, But Who Cleans It?)
5 min read
Furnace Not Turning On? Emergency Troubleshooting Before Calling HVAC
Furnace Not Turning On? Emergency Troubleshooting Before Calling HVAC
6 min read
Thermostat Not Working? How to Fix or Replace It Yourself
Thermostat Not Working? How to Fix or Replace It Yourself
6 min read
Nest Thermostat Not Heating or Cooling? Troubleshooting Guide
Nest Thermostat Not Heating or Cooling? Troubleshooting Guide
6 min read
AC Blowing Warm Air on the Hottest Day: 6 Things to Check Before Calling
AC Blowing Warm Air on the Hottest Day: 6 Things to Check Before Calling
6 min read
Furnace Short Cycling in Winter: Causes, Costs, and DIY Checks (2026)
Furnace Short Cycling in Winter: Causes, Costs, and DIY Checks (2026)
7 min read

Questions Answered by Shaun

My AC unit is leaking water inside the house. There is a puddle forming near the indoor unit. Is thi...
Home & DIY question
My furnace is running but blowing cold air instead of hot air. The thermostat is set to heat but onl...
Home & DIY question
My outdoor AC unit started making a loud rattling, buzzing, or grinding noise. It is much louder tha...
Home & DIY question
I turned on my heater for the first time this season and it smells like something is burning. Should...
Home & DIY question
The caulk around my bathtub has black mold growing on it. I have tried scrubbing with bleach but it ...
Home & DIY question
My bedroom door sticks and I have to push hard to close it. It worked fine last summer. Is the door ...
Home & DIY question
My dryer is taking 2-3 cycles to dry a normal load. It used to dry everything in one cycle. The drye...
Home & DIY question

Need home & diy help?

Chat with Shaun Cain for personalized expert advice.

Start a consultation — $1 →
← All expertsHome & DIY ServiceBlogQ&A