Question 1

Why is my RV air conditioner not cooling?

Accepted Answer

The most common causes are a clogged condenser coil restricting airflow, a failed run capacitor preventing the compressor from starting, or refrigerant loss. A dirty air filter inside the RV can also reduce cooling performance significantly. If the AC is running and blowing air but not cooling, the condenser and capacitor are the first places to look. If the unit is not starting at all, confirm that 30-amp or 50-amp power is being delivered correctly at the pedestal before concluding there is a mechanical fault.

Question 2

Why won't my RV slide-out move?

Accepted Answer

Common causes include motor failure, a control relay or solenoid fault, low battery voltage at the slide circuit, mechanical binding in the slide box, or a wiring fault on the control circuit. On Schwintek dual-motor slides, failure of one motor causes the slide to bind or move only partway. A manual override is available on most systems to get the slide to a safe position when normal operation is not possible.

Question 3

Why does my RV have no 12V power?

Accepted Answer

The most common causes are a depleted or disconnected house battery bank, a blown fuse in the 12V distribution panel, or a converter that has stopped charging the batteries when connected to shore power. Check the main fuse panel and confirm the battery disconnect switch is in the on position before concluding there is a wiring fault. If the converter is running but batteries are not charging, the converter may need service.

Question 4

How does Boss Bull locate the source of an RV roof leak?

Accepted Answer

Locating an RV roof leak starts with a systematic review of the roof surface — sealant condition at vents, skylights, AC bases, antennas, and the perimeter seam where the roof meets the sidewalls. Water entry points and the location where water appears inside the RV are often not directly above each other because water travels along framing members before showing. A thorough inspection reviews the full roof surface rather than only the area above visible interior water staining.

Question 5

Why isn't my RV refrigerator getting cold?

Accepted Answer

For absorption refrigerators (LP/electric models like Norcold and Dometic), the most common causes are cooling unit failure, burner fouling on LP mode, or a control board fault. For compressor refrigerators (12V models like Everchill), the usual causes are a compressor fault, inadequate 12V power supply, or a thermostat issue. Confirm that the refrigerator has been running for several hours before concluding it is not functioning — absorption units take significantly longer to cool than residential compressor refrigerators.

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