How to Adjust RV Awning Arms: Tension & Pitch

Disclaimer: This guide is for informational purposes only. RV awning adjustments involve working at height and, in the case of spring-tensioned systems, stored mechanical energy that can cause serious injury. Always consult a certified RV technician for safety-critical repairs, particularly spring re-tensioning. Never attempt to release or unwind a torsion spring without proper training and equipment.

Key Takeaways

RV awning pitch should slope 1–2 inches lower on one side to shed water and prevent pooling
Spring tension and fabric tension are separate adjustments; don’t confuse a sagging arm with loose fabric
A wound torsion spring stores dangerous energy—never attempt to unwind it without professional guidance
Bent arms, worn sliders, and dead springs each require different fixes; diagnosis matters
Always use a two-person crew, a sturdy ladder, and safety precautions when working on awning systems

After five years of full-time RVing and countless overnight camps from the Cascades to the Mojave, I’ve learned that a well-maintained awning is non-negotiable. Water pooling on fabric, uneven pitch, and sagging arms aren’t just cosmetic problems—they destroy awning fabric, invite mold, and can collapse under snow or wind load. In this guide, I’ll walk you through how to adjust RV awning arms, correct pitch, and safely re-tension springs based on hands-on troubleshooting I’ve done in my own rig and learned from RV service pros.

What Type of RV Awning Do You Have?

Before you adjust anything, identify your awning system. The adjustment procedure differs slightly between manual, semi-automatic, and fully electric units—and between manufacturers.

Manual and Semi-Automatic Awnings (A&E, Dometic, Carefree)

Manual awnings like A&E and Dometic models use a hand crank or scissor-arm mechanism. Carefree Fiesta and Freedom models are semi-automatic with a spring-loaded roller tube. Adjustments are made by loosening fasteners on the mounting bracket, repositioning the arm, and re-tightening. Spring tension is built into the roller tube itself.

Electric Awnings (Solera, Lippert, Winegard)

Electric systems use a motor-driven roller tube and typically have a torsion spring that assists extension. These can be adjusted on the mounting rail, but spring re-tensioning should only be done if you’re confident in the procedure—or left to a technician.

How Do I Check and Adjust RV Awning Pitch?

This is the most common adjustment and the easiest to execute safely. Proper pitch prevents water from pooling on the fabric, which is the leading cause of awning failure.

Why Pitch Matters

An awning should slope gently toward one side so that rain and morning dew run off rather than sit. A slope of 1 to 2 inches across a typical 14-foot awning is ideal. Without pitch, water pools in the fabric valleys, promotes mold growth, adds weight that stresses the arms, and can tear the fabric when it finally drains unevenly.

Adjusting Pitch Step-by-Step

Deploy the awning fully and ensure the fabric is taut but not over-extended. Have a second person steady the ladder.
Set a water level on the awning rail or use a smartphone spirit-level app. Place it perpendicular to the direction you want water to flow (usually toward the driver’s side for easier observation).
Locate the arm-mounting bracket on the RV wall. There are typically two bolts or fasteners per arm—one attaching the arm to the RV and one securing the arm to the mounting bracket rail.
Loosen (do not remove) the mounting fasteners by about one-quarter turn. The goal is enough play to slide or tilt the bracket without dropping the awning.
Adjust the bracket height by turning the adjustment screw or by loosening the rail fastener and sliding the bracket up or down. Lower one side by approximately 0.5 to 1 inch, which creates the 1–2 inch slope across the fabric width.
Check the level again. The slope should be subtle—enough to shed water, not so steep that the arm looks unbalanced.
Retighten all fasteners securely. Torque values vary by manufacturer, but typically 15–25 ft-lbs is standard for awning arm fasteners. Do not over-tighten, which can strip threads or bend the bracket.
Retract and deploy the awning several times to confirm smooth operation and that the pitch is maintained.

How Do I Fix a Sagging or Uneven Awning Arm?

Sagging on one side, arms that won’t extend symmetrically, or uneven fabric tension can stem from several causes. Diagnosis is critical because the fix depends on the root problem.

Symptom-to-Cause Reference Table

Symptom	Likely Cause	Fix
One arm extends lower than the other; both arms feel firm	Pitch misalignment; mounting bracket not level	Adjust pitch per steps above
Awning sags heavily in the middle; fabric looks loose	Fabric tension lost; spring may be weak	Tighten fabric, or re-tension spring if equipped
One arm won’t extend or feels rough when extending	Worn slider, dirt in track, or bent arm	Clean track; inspect arm for bends; replace slider or arm if damaged
Arm extends, then slowly droops back	Spring is dead or severely weakened	Replace spring (do not attempt DIY re-tension if it’s completely slack)
Awning won’t retract fully; arm feels stuck	Fabric twisted, bent arm blocking roller, or spring over-tensioned	Manually guide fabric into roller; inspect arm; reduce spring tension gradually

Differentiating Spring Tension from Fabric Tension

This is crucial: a loose, sagging awning is not always a spring problem. Here’s how to tell the difference:

Loose fabric: The arm extends smoothly and holds position, but the fabric hangs limply or wrinkles. The arm itself feels solid. Fix: Tighten fabric tie-down straps or adjust the fabric tension bracket if your model has one.
Weak spring: The arm extends but feels mushy or soft, and the whole arm sags as though there’s no support. The arm may slowly lower even when held in place. Fix: Re-tension or replace the torsion spring in the roller tube.
Bent arm: One arm hangs lower than the other despite equal fabric tension. The arm may look visibly crooked or have a flat spot. Fix: Replace the arm.

How Do I Adjust or Re-Tension an RV Awning Spring?

Spring adjustment is where caution is essential. A torsion spring wound into an RV awning roller tube stores tremendous energy—roughly equivalent to a loaded mousetrap, but far more powerful. If released uncontrolled, it can break fingers or cause facial injuries.

When to Re-Tension vs. Replace

Before you touch a spring, ask yourself: Does the arm extend but feel weak, or does it barely extend at all? If the arm extends and holds position even loosely, the spring may just need re-tensioning. If the arm hangs completely slack and will not stay extended even partially, the spring is likely dead and should be replaced rather than re-tensioned.

Safe Spring Re-Tensioning Procedure

This procedure assumes you have experience with torsion springs or are working under the direct supervision of an RV technician. If you are uncertain at any point, do not proceed.

Fully retract the awning and secure it with the strap or locking pin provided. The roller tube must not move during adjustment.
Locate the spring winding mechanism at one end of the roller tube (usually inside or just behind the end cap). There is typically a square shaft or adjustment nut visible.
Use a spring winding tool or appropriately-sized wrench to turn the shaft or nut very slowly—typically 1/4 to 1/2 turn at a time in the direction indicated by your manual (usually clockwise to increase tension).
After each 1/4 turn, stop and test by manually extending the arm partway and feeling for resistance. The arm should feel progressively firmer. Do not over-tension; the arm should extend and retract smoothly, not stiffly.
Never place your hands near the end cap or spring release mechanism while tensioning. If the spring suddenly unwinds, it will rotate at high speed and can cause serious injury.
Once the tension feels even and the arm supports itself, secure the adjustment mechanism with the provided locking nut or pin. Ensure it cannot rotate back.
Deploy and retract the awning several times to confirm smooth operation and that tension is even on both arms.
If the spring does not respond to re-tensioning or becomes extremely difficult to turn, stop immediately. The spring is likely broken internally and must be replaced by a technician.

When to Call a Professional

If the spring is completely slack, if you hear a cracking or popping sound when adjusting, or if you are uncomfortable working at height or with spring mechanisms, contact an RV service center. Replacing a torsion spring costs $150–$400 plus labor, depending on the model, but it’s far cheaper than an injury or awning collapse.

How Do I Adjust Arm Height on the Mounting Rail?

Some RV awnings, particularly electric models, allow you to adjust the height at which the arms mount on the RV sidewall. This is distinct from pitch adjustment and can help correct a permanently lopsided awning.

Mounting Rail Height Adjustment

Fully retract the awning and secure it.
Locate the mounting bracket fasteners on both sides of the RV—typically two bolts per bracket that attach to the RV sidewall or aluminum extrusion.
Loosen (but do not remove) all fasteners by one-quarter turn. You should have enough play to slide the bracket up or down the wall by up to 1–2 inches.
Use shims or spacers if needed to achieve the desired height on one side. For example, if the driver’s side is higher than the passenger’s side, place a thin shim or washer under the passenger-side bracket to raise it.
Retighten all fasteners evenly and in a cross-pattern (upper-left, lower-right, upper-right, lower-left) to avoid warping the bracket.
Deploy the awning and check alignment visually and with a level.

What Tools and Products Do I Need?

A few simple tools make awning adjustment safer and faster. Here are the essentials I keep on hand and recommend based on technician feedback and verified compatibility:

Safety Reminders and Best Practices

Always work with a second person. One person operates tools or holds the ladder; the other observes and communicates. Never work alone at height.
Wear safety glasses to protect against dirt or debris dislodged during adjustment.
Secure the awning before working on it. Use the retraction strap, pin, or locking mechanism provided by the manufacturer. A partially extended awning can collapse unexpectedly.
Never release or unwind a torsion spring without professional training. The stored energy is serious and can cause injury.
Use a torque wrench, not just hand-tightening. Under-tightened fasteners can loosen from vibration; over-tightened fasteners can strip or bend components.
Test operation multiple times after adjustment before hitting the road. Deploy and retract the awning at least three times to confirm smooth, even motion.

About This Article

Written by Drew Callahan, who has been living and traveling full time in an RV for several years and logging more than 80,000 miles across North America in three rigs: a travel trailer, a Class C motorhome, and a cargo van converted by hand. This guide combines that first-hand experience with the awning service documentation listed below. You can read more about how this site started on the about page.

What this guide is and isn’t. Drew Callahan is an experienced owner, not a certified RV technician, and this guide reflects hands-on experience plus manufacturer documentation rather than formal training. Where a step is safety critical — releasing or re-tensioning a wound awning spring, which stores enough energy to break an arm — have a certified RV technician confirm your diagnosis before you start. Nothing here replaces your rig’s own manual.

Verify These Details Against Your Own Rig

Specifications change by model year and floorplan, so treat the numbers here as a starting point and confirm them against the primary sources for your rig:

Dometic — awning service and parts documentation
Carefree of Colorado — awning owner manuals and spring specifications
Lippert Components — Solera awning manuals and support