Businesses call us for all kinds of heating issues. Some start small. Others hit fast and shut down the whole building. Here are the issues we see most often and how we fix them.

1. Heater will not turn on

This is one of the most stressful issues because it stops your operation cold.
Common causes include:

• Faulty thermostat or control board

• Ignition failure

• Gas supply problems

• Electrical issues

• Safety lockouts

We inspect the system, test the ignition, check electrical connections, and verify the gas line. Once we find the cause, we repair or replace the failing component.

2. Heater turns on but blows cold air

This problem shows up in older buildings a lot. Poor airflow and worn parts make the system run without heating.

You might have:

• Dirty burners

• A cracked or failing heat exchanger

• A weak blower motor

• Clogged filters

• Duct leaks

We inspect burners, blower motors, airflow, ducts, and the heat exchanger to find where heat is being lost.

3. Strange noises during operation

A commercial heating system is loud by nature, but it should not bang, grind, squeal, or rattle.
These sounds often point to:

• Worn motor bearings

• Loose belts

• Failing blowers

• Vibration issues

• Damaged moving parts

Ignoring noises often leads to bigger failures later. We fix the cause before it turns into a shutdown.

4. Burning smells or gas odors

This is serious. If you smell burning or gas, stop the system right away.

Possible causes:

• Overheating components

• Dirty burners

• Electrical faults

• Gas leaks

• Blocked ventilation

We run combustion analysis, test gas lines, check ventilation, and inspect electrical parts. Your building’s safety matters more than anything.

5. Heater keeps shutting off

Short cycling is a common commercial issue. The system turns on, runs for a short time, shuts off, and starts again.
This happens due to:

• Thermostat problems

• Faulty heat sensors

• Airflow restrictions

• Safety lockouts

• Electrical control issues

Short cycling wastes energy and wears down your system fast. We find the root cause and correct it.

6. Hot and cold spots in different rooms

Uneven heating is a sign of:

• Duct leaks

• Poor ventilation design

• Failing blower motors

• Wrong sized equipment

• Blocked airflow

We use airflow meters and duct inspection tools to find the problem and restore even heat throughout the building.

Our Full Commercial Heating Services in Cotati, CA

Repair is our main focus, but commercial heating systems need more than quick fixes. We offer complete heating support for your building.

Commercial Services We Offer:

• Commercial heater repair

• Commercial furnace repair

• Commercial heat pump repair

• Emergency commercial heater repair

• Heating system maintenance

• Commercial furnace installation or replacement

• Thermostat and building control system repair

• Gas heater and electric heater repair

• HVAC troubleshooting and diagnostics

• Energy efficient heating upgrades

• Ductwork repair and sealing

• Ventilation system testing

When we repair your heater, we also look for the real cause of the failure. Commercial systems break down because of clogged filters, dirty coils, restricted airflow, aging parts, bad sensors, and ignored maintenance.

We fix those deeper issues too.

Our Process: How We Repair Your Commercial Heater

Working with us is simple. We respect your schedule, your staff, and your building.

Step 1: Call or message us

Tell us your location, your building type, and what the heat is doing.

Step 2: We schedule your visit

We understand business downtime costs money, so we work fast. If it is an emergency, we prioritize you.

Step 3: Full system diagnostics

We check:

• Ignition system

• Gas valves

• Control boards

• Blower motors

• Flame sensors

• Burners

• Filters

• Ductwork

• Heat exchanger

• Airflow levels

• Safety switches

Step 4: Explain the issue clearly

We show you the exact problem in simple words. No confusing jargon.

Step 5: Give you a clear written quote

You approve before any work begins.

Step 6: Repair the heater

We use commercial grade tools like multimeters, combustion analyzers, gas leak detectors, airflow meters, and control system equipment.

Step 7: Final safety and performance test

We confirm the system heats properly, vents safely, and maintains steady airflow.

Common Mistakes Commercial Property Owners Make

Here are a few things we see often. They cause big problems later.

• Ignoring loud noises

• Skipping maintenance

• Only changing filters but skipping real inspections

• Waiting until the heater completely fails

• Using unlicensed or untrained repair workers

• Running a heater with poor ventilation

• Letting sensors stay dirty or broken

We help you avoid all these issues with proper diagnostics and service.

Ready To Get Your Commercial Heater Working Again?

Whether your building is near La Plaza Park, the Cotati Depot, Old Redwood Highway, East Cotati, West Cotati, or the school district area, Stout’s Heating & Air Conditioning is ready to help.

Call or message us today and we will get your heat back on fast.

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