10 Major Forest River Heritage Glen Problems and Their Solutions

Forest River Heritage Glen recreational vehicles (RVs) are popular fifth wheel camper models. But like all RVs, they can develop problems over time.

Common issues involve the plumbing, slide-outs, cracking, seals, and factory defects. It is frustrating when appliances, air conditioning, refrigeration or other items have failures too. 

Thankfully many Heritage Glen problems have solutions. Being aware of potential issues can help owners address them promptly.

Performing regular maintenance also prevents some problems. This article outlines the most reported Heritage Glen faults. It also provides practical solutions to restore proper functioning.

Helpful tips to upgrade these RVs for better performance are included too. With some effort, Heritage Glen problems can often be resolved, extending the usable life of these beloved campers.

Read on to learn how to keep a Heritage Glen RV running smoothly for years of fun camping trips.

Forest River Heritage Glen Problems and Solutions

1. Plumbing Issues in Heritage Glen RVs

Like most RVs, Forest River Heritage Glen models can experience plumbing problems over time. From leaks to clogs, plumbing issues can cause major headaches if left unchecked.

Fortunately, there are solutions to some of the most common plumbing problems in Heritage Glen recreational vehicles.

How to Fix?

Finding and Fixing Freshwater Leaks

Leaky plumbing can lead to water damage and mold if ignored. Some of the most likely areas for freshwater leaks include faulty pressure valves, PEX connections, and water pump failures.

Carefully inspect all plumbing joints, valves, and tubes for any sign of moisture. Replace worn gaskets, tighten loose joints, and swap out leaky parts. Consider replacing original tubing with more durable PEX piping.

Preventing Black and Grey Tank Backups

Few things are worse than a clogged black or grey tank. To prevent backups, avoid pouring grease down drains and use a tank treatment regularly.

Some Heritage Glen owners install an inline waste valve to close off the tank if needed. Adding a backflow preventer prevents waste from flowing the wrong way. As a last resort, manually unclogging tanks via the outlet pipe may be required.

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Winterizing to Avoid Frozen Pipes and Tanks

Freezing temperatures can wreak havoc on RV plumbing systems. To avoid cracked pipes and tanks, thoroughly winterize the Heritage Glen’s plumbing using RV antifreeze per the manufacturer’s instructions.

Allowing tanks to freeze with liquids inside can permanently warp components. Installing tank heating pads reduces this risk.

2. Common Slide-Out Issues

Problems with slide-out components are frustratingly common in the Forest River Heritage Glen line. Due to frequent use, wear and tear take a heavy toll on slide components such as motors, gears, rails, seals and more. Here are some tips for avoiding major slide-out headaches.

How to Fix?

Maintaining Slide-Out Motors and Gears

Slide-out issues often come down to worn motors and gears. Listen for grinding noises that can indicate worn gears.

Replace gears and motors early before catastrophic failures occur. Lubricating slide components per manufacturer specifications extends the working life of these parts.

Inspecting Slide-Out Alignment and Seals

Over time, slide-outs can fall out of alignment, allowing water inside and damaging seals. Carefully check for any gaps between the slide-out and RV body when closed.

Misalignments indicate worn rails or roller guides. Replace damaged or cracked seals to prevent leaks. Lubricating seals extends their usable life.

Electrical Shorts and Voltage Problems

If slide-outs move slowly or not at all, electrical shorts or low voltage could be to blame. Check for damaged wires running to slide motors.

Confirm campground or generator voltage is adequate to power hungry slide motors. Upgrading to a larger generator may help resolve low voltage problems when off-grid.

3. Settling Cracks and Gaps in Walls and Ceilings

3. Settling Cracks and Gaps in Walls and Ceilings

The long profile and lighter-weight materials used in Heritage Glen fifth wheels make them susceptible to settling cracks over the first few years of use.

Cracks appear most often at molding joints, but they can show up anywhere. Here are some tips for fixing cracks and gaps as they appear.

How to Fix?

Inspecting Seals for Leaks After Settling Occurs

After noticing new cracks, carefully check for plumbing leaks or daylight behind exterior seals. Cracked joints can expose the RV interior to moisture. Probe any questionable seals with paper towels to check for leaks, and replace as needed. Taking time to properly reseal is worth preventing major water damage.

Filling Small Gaps and Cracks

For small cracks under 1⁄4 inch at molding joints, apply a thin bead of RV-specific sealant matching the original color.

Allow the sealant to fully cure per application instructions before stressing joints. The sealant will flex with shifting and prevent further cracking.

Addressing Larger Cracks With Backer Rods

If larger cracks exceed 1⁄4 inches, stuff the backer rod into the gap before applying sealant. The round foam backer rod provides shape and support, allowing the sealant to adhere as the RV shifts.

Take care applying the rod and sealant in layers for the best results and longevity.

4. Refrigerators Problems

The refrigerators in Heritage Glen RVs can stop cooling properly. The fridge may not get cold or freezer items start to thaw.

A few common issues cause cooling failures. The fridge coils could be blocked with dirt or dust. The thermocouple that controls temperature might be broken. There may also be an electrical short or blown fuse affecting fridge power.

How to Fix?

Fixing a cooling failure first involves checking power to the refrigerator. Make sure circulation fans run when powered on.

Clean any dirty coils gently with a brush or compressed air. Inspect the thermocouple and replace it if damaged.

When troubleshooting electrical problems with your Forest River Arctic Wolf, inspect all wires and fuses connected to the fridge. Professional RV repair services can diagnose and resolve shorts.

In situations where the cooling unit fails and is irreparable, replacing the entire fridge may be necessary.

Implementing routine cleaning and maintenance practices is crucial for averting significant issues with your Forest River Arctic Wolf.

5. Loose or Separated Exterior Seals

The seals and adhesives used to bond the exterior fiberglass and rubber panels on Heritage Glen fifth wheels can deteriorate over time.

As seals fail around roof lines, slide-outs and elsewhere, water intrusion and delamination become serious risks. Catching problems early improves the prognosis.

How to Fix?

Inspecting Sidewall and Roof Seams Frequently

Make a habit out of carefully examining exterior seals during routine maintenance. Check all roof and sidewall seams for gaps, raised edges, bubbles under decals or discolorations indicating moisture issues. Probe any questionable areas to assess damage before leaks advance.

Re-bonding Loose Sections

If delamination is spotted early, special adhesives can often re-bond fibrous backing to exterior panels.

Thoroughly clean and sand both material faces first before applying bonding agents per the manufacturer’s application directions. Clamping pressure helps the adhesive fully set.

Replacing Damaged Panels If Severely Delaminated

Sections of exterior décor panels or fiberglass that are severely delaminated or water-logged often cannot be salvaged.

Replacement panels must be ordered from the factory to achieve clean finishes. Professionally replacing damaged sections before problems spread through the layers is recommended.

6. Quality Control Issues From Factory

Quality Control Issues From Factory

Like most brands, Heritage Glen and other Forest River RVs sometimes suffer defects emerging from the factory that require post-purchase repairs.

Review rigs thoroughly at delivery, and inspect all systems again more closely within the initial warranty window. Document any questionable manufacturing defects immediately to make repairs easier.

How to Fix?

Water Damage From Early Roof Leaks

Several early Heritage Glen owners report water stains and damaged interior ceilings from apparent roof leaks the factory failed to catch.

Inspect all roof molding seams and plumbing stacks with extra scrutiny at delivery. Push for immediate repair of any potential leak sources under warranty.

Crooked or Warped Cabinet Doors

Thanks to environmental exposure and transportation mishaps, RV cabinet doors often arrive misaligned or twisted from the factory.

Have any visibly crooked doors and drawer fronts adjusted as part of initial dealer prep. Ask technicians to remove and realign doors for uniform spacing.

Addressing Loose or Failing Appliances

Shaking and rattling from refrigerators, microwaves and stovetops often results from inadequate installation support.

Request additional bracing under suspect appliances to reduce movement and future damage. Loose appliances put undue strain on attached plumbing and wiring over bumpy roads.

7. Air Conditioning Problems

The Forest River Heritage Glen RV can have air conditioning problems. The roof air conditioner may not blow cold air.

Or the air conditioner may make loud noises and then stop working. There are a few things that can cause AC problems.

The air conditioner coils may be dirty or blocked. The AC filters may be clogged with dust. There could also be an electrical issue, like a tripped breaker or a blown fuse.

How to Fix?

To fix AC issues, first check that the RV has power. Make sure the circuit breaker is on for the AC unit. Check the fuse box for any blown fuses as well.

If there is power, the AC coils might just need cleaning. Use a special coil cleaner spray and gently rinse the coils. 

Replace any dirty filters to improve air flow. If that does not work, have an RV technician inspect the AC wires and compressor.

They can fix electrical shorts and replace any damaged AC components. A new air conditioner may be needed if the current one cannot be repaired.

8. Pilot Light Isn’t Turned On

Some RV appliances like furnaces, water heaters, and ovens use a pilot light. This small flame helps the appliance turn on and function.

Sometimes the pilot light goes out and won’t restart. A blocked pilot tube can stop gas flow to the flame. Bug nests or dirt in the tube are common causes. The thermocouple sensor that registers the pilot flame might also be dirty or defective.

How to Fix?

To troubleshoot a pilot light problem, first try to manually relight the flame. Make sure gas valves are turned on.

Clean around the pilot tube opening with compressed air to remove debris. Replace a damaged thermocouple if cleaning doesn’t help. 

For ovens, check that the igniter sparks when powered on. If no issues are found but the flame won’t hold, have an RV technician inspect appliance gas valves and supply lines. Proper maintenance helps avoid frustrating pilot light problems.

9. Problem with The Fridge Door

Problem with The Fridge Door

The doors on Heritage Glen RV fridges can sometimes have problems opening and closing. The hinges might become loose or break over time.

This can make the door sag, not shut tightly, or fall off completely. Door handles and latches can also crack or malfunction, affecting closure.

How to Fix?

Fixing a fridge door issue starts with inspecting the hinges. Tighten any loose screws or bolts to refasten sagging hinges.

Replace broken or damaged hinges to restore full motion capability. For handle and latch problems, check that the door gasket seals properly when closed. 

Replace damaged handles, latches, or gaskets. Align the door properly to ensure the latch connects every time the door shuts. Some adjustments may require removing and reinstalling the door. 

Major issues may need fridge or door replacement. Performing periodic maintenance checks helps avoid refrigerator door headaches.

10. DIY Upgrades for Improved Performance

Beyond fixing issues as they occur, there are several worthwhile upgrades Heritage Glen owners can complete over time to increase longevity and daily enjoyment of their fifth wheels.

How to Improve?

Leveling and Support Upgrades

Consider upgrading the standard scissor jacks to heavy-duty 10,000 pound swivel jack leveling systems for improved stability over changing terrain. Solid welded supports and pads disperse loads better and resist sinking.

Heating and Cooling Tweaks

Swapping out the 14,500 BTU roof A/C with a more robust 15,000 BTU model improves performance in hot weather.

Similarly, adding vent covers over furnace and refrigerator exterior flues prevents cold air recirculation in colder climates.

Fresh and Grey Water Improvements

Installing an exterior spray port simplifies rinsing holding tanks and lines. Adding water filtration provides clean drinking water.

For dry camping, extra freshwater tanks significantly extend time off-grid. Increasing grey tank capacity allows longer intervals between draining needs.

Forest River Build Quality

  • Forest River has inconsistent issues on quality according to many owners – some rigs prove very durable while others require excessive repairs.
  • Use of lighter weight materials improves fuel economy but may lack long-term resilience.
  • Appearance of fiberglass sidewalls and decals rates well if properly maintained.
  • Plumbing and electrical systems prone to problems based on multiple reports.
  • Quality control team seems to miss many issues before the campers leave factories.
  • Appliances like fridges, microwaves and ACs often need replacement years earlier than expected.
  • Structural integrity and prevention of water damage rates higher for laminated sidewalls over frameless.
  • Warranty support provides repairs for factory flaws, but coverage varies widely among dealers.
  • Added insulation and heated holding tanks improves four season reliability compared to older models.
  • Reviews suggest ordering rigs with fewer fancy options reduces future points of failure.

Opinions on Heritage Glen

Opinions on Heritage Glen

The Heritage Glen is a popular fifth wheel model from Forest River. Many RV owners like these campers for the high-end features.

The spacious kitchens, large slide-outs, and luxury décor appeal to buyers. Construction uses thick insulation and sturdy materials that withstand frequent use.

Happy owners praise the comfortable design that feels like home. Towing is easy with a heavy duty truck thanks to balanced weight distribution.

However, some Heritage Glen owners share critical opinions too. A few reviewers report problems with quality control from the factory.

Other negative feedback involves plumbing leaks, electrical issues, appliance failures or slide-out malfunctions after some years of camping trips. 

Breakdowns can quickly dampen enthusiasm for family vacations. Better preventative maintenance may help minimize problems over time. Discussing concerns directly with dealers provides additional support when troubles do arise.

Frequently Asked Questions

How much does a Forest River Heritage Glen 356qb weigh?

The dry weight of a Forest River Heritage Glen 356qb is 12,055 pounds. The gross vehicle weight rating is 16,000 pounds maximum when fully loaded.

Who manufactures Forest River travel trailers?

Forest River, Inc. manufactures all Forest River brand recreational vehicles. The company is headquartered in Indiana and builds Forest River RVs in numerous factories across the United States.

Where are Forest River Wildwood campers made?

Forest River produces its Wildwood line of travel trailers at several plants in Oregon, Indiana, Pennsylvania, and Michigan. Quality control teams inspect all Wildwood RVs at the end of manufacturing.


Like any complex vehicle, Heritage Glen recreational trailers can suffer issues over years of use. Common problems reported by owners involve failures in plumbing systems, slide-out mechanisms, exterior seals, and occasional factory defects.

Less frequent faults with appliances, air conditioning and other items also occur. Thankfully with vigilance and proper maintenance, many problems can be avoided or caught early before causing serious damage.

When issues do arise, understanding the root causes makes troubleshooting easier. Following recommended solutions and upgrade tips outlined here will help Heritage Glen RVs stay usable longer.

With some preventative care and prompt response when problems occur, Heritage Glen campers can deliver many miles of comfortable camping adventures ahead.

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