RV A/C & Furnace Repair & Diagnostics
Professional mobile diagnostics and repair for RV air conditioners, furnaces, thermostats, airflow, capacitors, motors, electrical controls and common comfort-system problems.
Common Problems We Diagnose
Similar symptoms can have different causes. Proper testing helps narrow down the actual failure.
A/C Will Not Start
The rooftop unit does not respond or starts inconsistently.
Fan Runs, Not Cooling
Air moves but the compressor does not start or cooling is weak.
A/C Breaker Trips
The unit trips a breaker or stops under load.
Furnace Will Not Ignite
The blower may run but the burner does not light.
Furnace Short Cycles
The furnace starts and stops before the RV reaches temperature.
Thermostat / Control Issues
Temperature control, communication or electrical-control problems.
What We Can Service
MilTech RV provides mobile service for visible and accessible RV systems that fit within our field-service scope.
Roof A/C Systems
Starting, cooling, airflow, capacitors, fan motors and accessible controls.
RV Furnaces
Ignition, blower, airflow, thermostat and 12V control concerns.
Thermostats & Controls
Basic diagnostics for accessible temperature and control circuits.
Diagnose. Explain. Authorize. Repair & Educate.
Our approach is designed to identify the likely cause before unnecessary parts are replaced.
Test the affected RV system and narrow the problem to the likely cause.
Review what was tested, what we found and the available options.
You approve additional repair work before it proceeds.
Complete authorized work and explain what to monitor afterward.
Straightforward Mobile RV Pricing
Our standard mobile diagnostic pricing is consistent across core repair services.
Parts, materials and specialized-service charges are additional. Findings and repair options are discussed before additional authorized work.
Seasonal Mobile Service
MilTech RV serves Greater Des Moines during the Iowa season and Yuma, Arizona during the winter season.
Greater Des Moines, Iowa
2026 appointments through October 14, 2026. Returning April 14, 2027.
Des Moines Service →RV A/C & Furnace Repair & Diagnostics FAQ
Quick answers to common questions about this service.
Can you diagnose an RV A/C that runs but does not cool?
Yes. We can test common electrical and operating causes before recommending parts.
Do you service RV furnaces?
Yes. We diagnose common furnace ignition, airflow and control problems.
Do you recharge RV air conditioners?
Many rooftop RV A/C units are sealed systems and are not field-rechargeable in the same way as residential systems. Diagnosis determines the appropriate next step.
Need Help With Your RV?
Tell us what your RV is doing, where it is located and the year, make and model. Photos, fault codes and model numbers can help us determine the best starting point.