Propane Regulator May Fail and Cause Fire – 2020-2021 Highland Ridge Mesa Ridge Limited, Mesa Ridge Lite, Open Range Light, Open Range Ultra Lite, 2019-2020 Mesa Ridge, 2019-2021 Open Range, 2020 Silverstar Limited & Silverstar Lite Fifth Wheel Trailers & Travel Trailers

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June 4, 2021 NHTSA CAMPAIGN NUMBER: 21V430000

Propane Regulator May Fail and Cause Fire

Increased propane pressure can enlarge the flames in gas appliances, increasing the risk of a fire.

 

NHTSA Campaign Number: 21V430

Manufacturer Highland Ridge RV

Components EQUIPMENT

Potential Number of Units Affected 3,072

 

Summary

Highland Ridge RV (Highland) is recalling certain 2020-2021 Mesa Ridge Limited, Mesa Ridge Lite, Open Range Light, Open Range Ultra Lite, 2019-2020 Mesa Ridge, 2019-2021 Open Range, 2020 Silverstar Limited and Silverstar Lite fifth wheel and travel trailers equipped with a Winntec model 6020 two-stage propane regulator. The regulator may fail, causing an increase in propane pressure.

 

Remedy

Dealers will replace the regulator and test the propane system for leaks, free of charge. Owner notification letters were mailed August 3, 2021. Owners may contact Highland customer service at 1-260-768-7771.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

 


INSPECTION OF WINNTEC MODEL #6020 LP REGULATOR

1. Only the Winntec Model #6020 – Dual Stage Double Cylinder – Automatic Changeover Regulator with Pigtails is affected. Replace the regulator and pigtails if the manufacturing date code stamped into the regulator is 2018 or 2019. Example shown below.

 

2. File a claim for inspection only if the unit does not have a Winntec model #6020 LP regulator or if the date code stamped into the regulator is not 18 XX, or 19 XX. Only replace regulators with date codes 18 XX and 19 XX.

 

REPLACING THE WINNTEC MODEL #6020 LP REGULATOR

1. Close the LP bottles and unscrew the pigtails from the LP bottles.

2. Remove the regulator from the unit.

3. Attach the new regulator to the unit.

4. Connect pigtails to LP bottles.

5. Check fittings, regulator, and connections using approved LP leak detection methods.

6. Proceed with a Drop Pressure Test:

a. Insert manometer into LP system.

b. Turn on both LP tanks.

c. Turn off both LP tanks.

d. Bleed system down to 8” water column.

e. System must hold 8” water column for a minimum of 3 minutes.

7. Ensure system operating pressure is at 11” (+-0.5) water column with 50% load and lockout pressure does not exceed 14” water column.

 

 


11/4/20–Grand Design RV informs THOR Ind. of three incidents involving Winntec Model 6020 regulators, where the regulators were suspected as the cause of fires. The Thor companies reviewed the issue internally and found no issues with these regulators at that time.

 

12/4/20–KZ RV informs THOR Ind. of two issues under investigation with the same suspect regulators.

 

12/22/20–Grand Design performs lab analysis on two failed regulators and finds they contain an oily substance inside. There is a belief that the oily substance is machining oil from a manufacturing process.

 

2/24/21–Grand Design informs THOR Ind. they are investigating several more fires, and will be sending regulators from those incidents for lab inspection.

 

3/16/21–Lab analysis performed on six regulators from Grand Design, including one exemplar and one from KZ RV. In the lab setting, the KZ RV regulator operated within allowable parameters, although it contained the same oily residue seen on the field samples.

 

4/19/21–THOR Ind. engages Exponent Engineering to conduct analysis of regulators to determine source of oily substance.

 

5/10/21–Safety Committee Meetings conducted at KZ RV, Keystone RV and Jayco RV, to update them on regulator investigation. All committees request further investigation of specific claims and confirmation of Exponent findings.

 

5/12/21–Exponent provides written report/presentation on regulator analysis.

 

5/14/21–Meeting held with Grand Design, Dehco, Winnspec International, and Chen Fong to discuss regulator issue. Winnspec given until May 18, to return information regarding issues with their regulators.

 

5/19/21–Safety Committee Meetings conducted at KZ RV, Keystone RV and Jayco RV to update them on the regulator investigation.

 

5/21/21–THOR Ind. Discussed regulator issue with the Medium Heavy Duty ODI office.

 

5/24/21 & 5/25/21 – Meeting with Grand Design, Dehco, Winnspec International, and Chen Fong at Livonia, MI testing facility, to discuss regulator investigation. Chen Fong agrees the regulator is allowing higher pressure than expected with a compromised second stage seal.

 

5/27/21–Safety Committee Meetings conducted at KZ RV, Keystone RV and Jayco RV.  All safety committees decide to move forward with a recall for safety for units built with a defective Winntec Model 6020 regulator.

 


MY 2020-2021 MESA RIDGE LIMITED FW

MY 2020-2021 MESA RIDGE LIMITED TT

MY 2020-2021 MESA RIDGE LITE TT

MY 2019-2020 MESA RIDGE TT

MY 2020-2021 OPEN RANGE LIGHT FW

MY 2020-2021 OPEN RANGE LIGHT TT

MY 2019-2021 OPEN RANGE TT

MY 2020-2021 OPEN RANGE ULTRA LITE TT

MY 2020 SILVERSTAR LIMITED FW

MY 2020 SILVERSTAR LIMITED TT

MY 2020 SILVERSTAR LITE TT

 


21E081 – Possible LP Regulator Failure – Winntec & WIC Model 6020 LP Regulators

 

21E081 – Possible LP Regulator Failure – Winntec & WIC Model 6020 LP Regulators

 



7 Affected Products

Vehicles

MAKE MODEL YEAR
HIGHLAND RIDGE MESA RIDGE 2019-2021
HIGHLAND RIDGE OPEN RANGE 2019-2021
HIGHLAND RIDGE SILVERSTAR 2020

 


16 Associated Documents

ISSUED Owner Notification Letter(Part 577)

RCONL-21V430-3671.pdf 170.609KB

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Manufacturer Notices(to Dealers,etc)

RCMN-21V430-7999.pdf 141.74KB

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Recall 573 Report – Amendment 4

RCLRPT-21V430-1314.PDF 215.664KB

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Remedy Instructions and TSB

RCRIT-21V430-9187.pdf 682.391KB

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Miscellaneous Document – Chronology

RMISC-21V430-6605.pdf 52.058KB

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Defect Notice 573 Report

RCLRPT-21V430-7560.PDF 213.799KB

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Miscellaneous Document – Model list

RMISC-21V430-0070.pdf 42.822KB

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Recall 573 Report – Amendment 1

RCLRPT-21V430-8602.PDF 215.523KB

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Recall Acknowledgement

RCAK-21V430-7604.pdf 645.855KB

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Recall 573 Report – Amendment 3

RCLRPT-21V430-3795.PDF 215.521KB

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Miscellaneous Document – Dealer Regulator update-Notification

RMISC-21V430-7681.pdf 209.302KB

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Miscellaneous Document – US Retail Letter Update

RMISC-21V430-4657.pdf 353.274KB

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Remedy Instructions and TSB

RCRIT-21V430-0850.pdf 683.349KB

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Recall 573 Report – Amendment 5

RCLRPT-21V430-7163.PDF 215.672KB

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Recall Quarterly Report #2, 2021-4

RCLQRT-21V430-6068.PDF 211.229KB

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Recall Quarterly Report #1, 2021-3

RCLQRT-21V430-8342.PDF 211.123KB

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Latest Recalls Documents

For the Latest and Most Recent Recalls Information Visit the link below…

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V430&docType=RCL

 


 

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Flame King (KT12ACR6) 2-Stage Auto Changeover LP Propane Gas Regulator With Two 12 Inch Pigtails For RVs, Vans, Trailers
  • Allows removal of the empty cylinder for refill without interrupting propane supply; includes 2 of the 12-inch pigtails to connect the regulator to the propane tank or propane supply
  • For RVs with dual propane tanks; it automatically switches from primary to reserve tank when the primary tank is empty
  • Pairs well with our 48 Inch Thermo Plastic Hose, item 100383-48
  • Inlets are 1/4" SAE inverted flare and outlet is 3/8" NPT female pipe thread; rated for 345,200 BTU
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Flame King ACR6a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails)
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  • Compatible with Flame King's 48-inch Thermo Plastic Hose, item 100383-48, and 12-18 inch Pigtails - E12INPT, E15INPT or E18INPT
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Flame King (KT12ACR6a) 2-Stage Auto Changeover LP Propane Gas Regulator With Two 12 Inch Pigtails For RVs, Vans, Trailers
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  • Propane Hose: The RV pigtail hose with propane tank gauge is made of durable stainless steel braided, with weather resistance, anti-aging, air tightness, heat-resistance, and flexibility features. Can lets you know how much liquid is left without shaking the propane tank and can detect leaks. Our Auto changeover LP propane regulator with hose is the ideal solution for maintaining a safe and reliable propane gas supply for your RV, camper, or other propane-powered appliances.
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  • Precise Control: The propane regulator with gauge features excess flow protection and an automatic shut-off valve, which helps prevent leaks and other safety hazards. With our Auto Changeover LP Propane Regulator, you can easily adjust the pressure of your propane supply to ensure your appliances run smoothly and efficiently. This gives you greater control over your propane usage.
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  • 【2-Stage LP Propane Dual Tank Pressure Regulators】This dual tank propane regulator allow you to hook up 2 propane tanks, automatically switches from primary to reserve tank when primary is empty. The color of the light will change, let you know when a tank has been depleted and needs to be refilled, allows removal of empty cylinder for refill without interrupting propane supply also remind you switching to the backup tank
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  • 【 Wide Application & Easy to Install 】2 Stage auto changeover RV propane regulator with two 18 inch RV propane gauge hoses and QCC1 Fitting be used to connect to an installed 4-Port Tee as an auxiliary propane supply, can tighten easily with the free wrench. for RV, camper, travel trailer, BBQ, tailgating, heating needs or having an outdoor cooking
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Last update on 2024-03-13 / Affiliate links / Images from Amazon Product Advertising API

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