Woman Dressed Cozily in Heated Camper Van, Sprinter Van Heater Installed, and Exterior of Sprinter Van Driving Through Snow in Colorado

Espar & Webasto Heater Repair Services in Boulder, Co

Fuel Heater inspection, service, repair, clean and maintenance to ensure the ultimate comfort on every adventure.

Van Heater SERVICE AND REPAIR in Colorado

The Vansmith is your trusted partner in building comfortable, adventure-ready vans. We specialize in Webasto and Espar van heater inspection, service, and cleaning in Boulder, Colorado.  The diesel and gas units from Espar and Webasto are the gold standard for reliable warmth, offering efficiency, safety, and comfort on every journey. But even they need a little help every now and then. Let us service your  heater to ensure perfect calibration for altitude to ensure the cleanest and most effective use. 

 

When the temperatures drop, a reliable fuel heater can mean the difference between a warm, comfortable adventure and a miserably cold trip. Webasto and Espar heaters are fantastic for keeping your van cozy in the winter, running off your vehicle’s fuel supply so you don’t have to carry a separate propane or diesel heater. However, if they fail at the wrong time, you’re left battling the cold—and worse, risking frozen pipes and other damage inside your van.

 

At The Vansmith, located in Boulder, Colorado, we specialize in servicing Webasto and Espar fuel heaters to ensure your system is running at peak performance. Whether you’re heading up to the mountains or camping in freezing temps, you can trust us to keep your heater reliable when you need it most.

 

Price: $775 per service (parts extra if needed, typically not required)

Work typically gets done in a day, but we'd like your van for 2 - so we have time to do any needed testing to make sure we get you confidently on your way.

a fuel heater service includes

1

Full system diagnostics – We use specialized tools to check error codes and unit history. We fully disassemble the unit to inspect all the parts

2

Deep cleaning – Removing soot buildup to restore performance, replace seals where required

3

Altitude recalibration (where needed) – Ensuring optimal operation in varying conditions

4

Error code troubleshooting – Identifying the root causes of the problems to ensure we get you back up and running

5

Access to genuine parts – If needed, we can source and replace faulty components (this may incur extra cost for item beyond seals)

5 Steps to a Cozy Van

maintaining your unit to minimize need for service

We recommend “burning” your unit for 30 minutes on max heat every month This will:

 - Ensure you constantly have fresh fuel in your line

 - Help burn off accumulated soot

If you’re experiencing issues at high altitude, sometimes the best fix is to descend to a lower elevation and perform a full burn cycle there. This can help reset your heater’s performance.

If you get a bubble in your fuel line and the unit struggles to start - you may need to pull a fuse and restart the unit to help help purge the line. You may need to repeat this multiple times

Especially important to make sure to fire up your unit in fall and make sure it is in working operation before you hit the open road!

common webasto error codes:

F01 – No start or failed ignition

F02 – Flame detected when off

F03 – Overheat shutdown

F04 – Power supply issues

F05 – Fuel pump failure

F06 – Glow plug failure

common espar error codes:

10 – Overheat detected

12 – Flame out or no start

13 – Undervoltage detected

14 – Overvoltage detected

52 – Glow pin fault

Heater Specifications for Webasto Air Top 2000 STC and Evo 40 or
ESpar airtronic 2 and 4

Van Heater Repair Services in Colorado: Stay Warm with The Vansmith

When you're traveling through Colorado's mountains, reliable heat isn’t a luxury - it’s a necessity. At The Vansmith, we’ve been building and servicing custom adventure vans since 2016, and we know exactly what it takes to stay warm in high-altitude terrain and unpredictable weather.

 

We offer professional Espar heater repair, Webasto heater service, and full heater installations from our shop in Boulder, Colorado. Whether you're facing a broken heater, strange error codes, or just want to make sure your system’s ready for the season, our certified techs are here to help.

Heater Repair Services: Expert Van Heating Solutions in Colorado

Diesel heaters like Espar (Eberspächer) and Webasto are essential for vanlifers who venture into Colorado’s backcountry. But these advanced systems require specific tools, parts, and know-how to keep them working properly.

Our team of heater experts specializes in:

  • Espar heater repair
  • Webasto heater repairs
  • Eberspächer heater repairs
  • Diagnostics and troubleshooting
  • Fuel system inspections and repair
  • Combustion chamber cleaning
  • Control module and wiring service
  • Full system overhauls or replacements

All of our services are performed using genuine parts by trained, certified technicians. And when you're on the road, we understand downtime matters. That’s why we offer both scheduled appointments and emergency heater repair options.

Essential Information on Webasto Heater Repairs

Diagnostics and Troubleshooting

Our approach starts with advanced diagnostics. We use Webasto-specific equipment to:

  • Read error codes
  • Monitor fuel delivery and power output
  • Test glow plugs, fans, and sensors
  • Identify issues like frequent cycling, inconsistent heat, or no start conditions

Our Boulder-based team understands how altitude, fuel quality, and cold starts affect performance. That’s why we go beyond surface-level fixes - to find and solve the root of the problem.

Repair Options

Whether your system needs a quick fix or a full rebuild, we’ve got you covered:

  • Clean or replace clogged fuel pumps
  • Swap out damaged glow plugs or sensors
  • Rebuild aging components with genuine parts
  • Full unit replacement when needed

We’ll give you honest advice on whether repair or replacement is the better long-term solution. And if you’re ready for something new, we also offer expert heater installations using top-tier products.

Finding a Repair Service

Searching for someone to repair Webasto systems or handle Eberspächer heater repairs? Make sure they’re certified and experienced with van-specific setups.

 

At The Vansmith, we’re more than just installers - we’re also an authorized Espar heater dealer, with direct access to the parts, tools, and factory support needed to get the job done right.

 

From Repairs Installations and Services to long-term maintenance, we offer Colorado’s most trusted solutions for van heating.

Common Espar Heater Issues and How to Fix Them

Common Problems

  • Fuel delivery issues due to altitude or contamination
  • Electrical faults caused by vibration or moisture
  • Carbon buildup in the combustion chamber
  • Faulty sensors or glow plugs
  • Error codes that need expert interpretation

When to Get Professional Espar Heater Repair

Not all heater problems can - or should - be DIY’d. You need a pro when:

  • Error codes won’t clear
  • Strange smells or noises appear
  • Heat output is weak or intermittent
  • You suspect carbon monoxide or fire risks

Safety matters. Don’t risk your van or your trip. We’re here to help.

Authorized Espar Heater Dealer – The Vansmith

As an authorized Espar heater dealer, The Vansmith offers:

  • Certified installations
  • Factory-trained service
  • Genuine parts with full warranty protection
  • Up-to-date diagnostic tools and training

We meet the highest standards for service, support, and reliability - because your comfort and safety depend on it.

Trusted Webasto Service Provider in Colorado

We don’t just repair Webasto systems - we live and breathe them. From Denver’s city streets to the snow-packed peaks, we understand how these heaters perform across Colorado’s wide range of altitudes and temperatures.

Why choose The Vansmith?

  • Boulder-based shop with expert local knowledge
  • Full-service support: diagnostics, repair, replacement
  • Friendly, honest customer service
  • Over a decade of experience building and maintaining adventure vans

Whether you’re heading up the hill to ski or camping off-grid in winter, you can trust The Vansmith to keep your van cozy and reliable.

Need Help?

For complete van care - heaters and beyond - explore our full Repairs Installations and Services, including DIY kits, custom layouts, and in-stock vans. Or reach out for expert help with your specific heater repair needs.

 

📞 Contact us today to book your service.

Frequently Asked Questions

Title

What’s the difference between Webasto and Espar?

Both are high-quality diesel heaters designed in Germany. Espar is the North American brand for Eberspächer. The main differences are in controls and service networks. We repair and install both. Espar units typically cope better at high altitudes.

How often should I service my heater?

We recommend running the unit once a month (to keep fresh fuel in the lines) and a professional service every year or every 2,000 hours of use - whichever comes first. Regular maintenance prevents breakdowns and extends heater life.

How much does Espar heater installation cost?

Most installs typically costs $3,750 depending on the van, heater type, and layout. We’ll give you a detailed quote based on your van’s setup and needs.

Can you repair any van heater brand?

We specialize in Webasto, Espar, and Eberspächer systems, but we can look at most diesel heater models used in vans. Some lesser-known brands may have limited parts availability.

How long does a typical repair take?

Simple repairs can often be done in a day. More complex issues or parts orders may take longer. We’ll always keep you updated on timelines.

Do you offer mobile repair service?

We do in select situations. Mobile repairs depend on your location, access, and the issue at hand. Most jobs are best handled in our Boulder shop.

What warranty do you offer?

We back our work with a 12-month labor warranty. Parts follow the manufacturer’s warranty. We stand behind our repairs and your safety.

What causes most diesel heater problems?

Common culprits are fuel contamination, electrical issues, or carbon buildup. Colorado’s altitude and variable fuel quality make professional maintenance especially important.

How much does Espar heater service cost?

Most services cost $775 - work can be done within a day or 2 - this typically solves most issues. If we need to replace parts - we will let you know ahead of time.

Stay warm, stay safe, and keep the adventures rolling - The Vansmith is here to help.

Let’s get your heater running strong. Contact us now to schedule your service.