22E093 Fuel Line in Heater May Leak – Oasis Chinook Hydronic Heaters

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Part 573 Safety Recall Report

NOV 02, 2022

TECHNICAL BULLETIN
Heating Systems
Release Type: Public
June 2, 2022
Bulletin Identification No.: MTB-229-20
Standard Repair Time: 30 minutes
Canada customer contact info:
International Thermal Research Ltd. 2431 Simpson Road,
Richmond, BC, Canada, V6X 2R2
Tel: (604) 278-1272, Fax: (604) 278-1274
Toll Free: 1-800-755-1272
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USA customer contact info: International Thermal Research Inc. 5305 NE 121st Ave. Suite 401 Vancouver, WA, USA, 98662
Tel: (360)-993-4877, Fax: (360)-993-1105
Toll Free: 1-800-993-4402
Affected Model(s): All heaters with ¼” fuel line Potential Serial Numbers: OCK59600-1131-2377
OCK59600-1231-2556 Description: Incorrect Fuel Line Short description of problem:
It was recently discovered that a general purpose hose was inadvertantly used in place of the ¼” fuel line in ITR’s powered heaters. It is unclear in which models this general purpose line was installed, but it would be within the range of the date codes in the above serial numbers.
The above fuel line is the correct type. It has “FUEL LINE SAE30R7” marked on it. The incorrect hose can be identified by either marking of “VALUFLEX/GS” or by what appear to be holes in the hose as shown below.
This hose is subject to leaking. If a heater is discovered to have this hose, it must be changed out
with the appropriate fuel line as per the instructions below.

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INTERNATIONAL LTD
THERMAL RESEARCH 2431 Simpson Road, Richmond, BC, CANADA, Y6X 2R2 E-mail: itr@itrheat.com Telephone: 604-278-1272 Website: www.itrheat.com Fax: 604-278-1274 IMPORTANT SAFETY RECALL (22E-093)
Incorrect Fuel Line in Oasis Date: November 7, 2022 Chinook Heaters (59600)
To: TIMOTHY BAUER Document#: EM093-10
CC: Rev: 1.0 IMPORTANT SAFETY RECALL
This notice applies to your vehicle, 4UZFCHFE5NCNS786 I. NHTSA Recall No. 22E-093 November 7, 2022 Dear TIMOTHY BAUER, This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. International Thermal Research has decided that a defect, which relates to motor vehicle safety, exists in certain Oasis Chinook Hydronic Heaters, with part number 59600 installed in your Newmar Coach. WHY DOES MY VEHICLE NEED REPAIRS?
The heaters may have an air line installed instead of a fuel line, which can cause a fuel leak. A fuel leak increases the risk of a fire. WHAT WILL YOUR DEALER DO?
Your dealer/service center will replace the fuel lines, free of charge. Your dealer/service center will bill International Thermal Research for the repair. The repair should take approximately 30 minutes to complete. However, due to scheduling, your dealer may require your vehicle for longer. Your dealer should be able to provide a more accurate repair estimate. WHAT SHOULD YOU DO?
Please contact your local authorized dealer and schedule an appointment for your free repair as soon as possible. To find your nearest dealer, visit www.itrheat.com.
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THE INFORMATION CONTAINED IN THIS DOCUMENT IS THE SOLE PROPERTY OF INTERNATIONAL THERMAL RESEARCH, LTD. ANY REPRODUCTION IN PART OR AS A WHOLE WlTHOUT THE WRJTTEN PERMISSION OF INTERNATIONAL THERMAL RESEARCH, LTD. IS PROHIBITED IMPORTANT SAFETY RECALL (22E-093)
WHO SHOULD YOU CONTACT WITH FURTHER QUESTIONS OR CONCERNS?
If you have questions or concerns about this recall, please contact International Thermal Research at 1-800-755-1272 or 1-604-278-1272. If your dealer fails or is unable to remedy this defect without charge, or within a reasonable amount of time, you may submit a written complaint to:
Administrator
National Highway Traffic Safety Administration 1200 New Jersey AVE SE
Washington, DC 20590
You may also call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424- 9153); or go to http://www.safercar.gov. WHAT IF YOU ARE A LESSOR?
Federal law requires that you forward a copy of this safety recall notice to the lessee within l 0 days. WHAT IF YOU HAVE ALREADY PAID FOR THIS REPAIR?
You may be eligible to receive a reimbursement for the cost of repairs made prior to receiving this notice. You may email your receipts to info@itrheat.com or by mail: 243 L Simpson Road Richmond, BC, V6X 2R2, Canada. WHAT IF YOU NO LONGER OWN THE VEHICLE?
If you no longer own the vehicle, complete the attached Change of Ownership card and email it to info@itrheat.com, or mail it (2431 Simpson Road Richmond, BC, V6X 2R2, Canada) or contact Customer Assistance at 1-800-755-1272 or 1-604-278-1272. We apologize for any inconvenience and thank you for your attention to this safety matter.
Sincerely, International Thermal Research
EM093-10 Page 2 of2 November 7, 2022

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 22E-093
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
INTERNATIONAL THERMAL RESEARCH NOV 02, 2022 NHTSA Recall No. : 22E-093 Manufacturer Recall No. : NR
Manufacturer Information :
Manufacturer Name : INTERNATIONAL THERMAL
RESEARCH
Address : 2431 Simpson Road
Richmond 00 V6X 2R2 Company phone : 604-278-1272
Population :
Number of potentially involved : 179 Estimated percentage with defect : 25 %
Equipment Information : Brand / Trade 1 :
Model : Oasis Chinook Part No. : 59600 Size : NR Function : Hydronic Heater
Descriptive Information : International Thermal Research (ITR) was informed of a series of fuel line leaks in the Chinook heaters by Newmar Corporation. Using the pictures supplied by Newmar, it was determined that the incorrect fuel line was used on at least some of the Chinook heaters that were shipped to Newmar. Through a series of communication between ITR and Newmar, and using the serial numbers of the leaking units identified by Newmar, ITR identified the starting and ending shipments to Newmar that included the potentially incorrect fuel lines. ITR determined the recall population as the first serial number of the starting shipment through the last serial number of the ending shipment. This range includes a total of 179 heaters.
Production Dates : NOV 01, 2021 – DEC 31, 2021
Description of Defect :
Description of the Defect : Some of the units had 1/4″ air line instead of 1/4″ SAE30R7 fuel line installed.
FMVSS 1 : 301 – Fuel system integrity FMVSS 2 : NR
Description of the Safety Risk : The incorrect fuel lines could develop a leak. This leak could result in the
increased risk of a fire. Description of the Cause : 1/4″ air line was used in place of 1/4″ SAE30R7 fuel line. Part 573 Safety Recall Report 22E-093 Page 2 Identification of Any Warning
that can Occur : The incorrect fuel line can break down and diesel fuel leakage can occur at the interior and exterior fuel lines of the Chinook heater. Involved Components : Component Name : NR Component Description : NR Component Part Number : NR Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
International Thermal Research (ITR) was informed of a series of fuel line leaks in the Chinook heaters by Newmar Corporation. Using the pictures supplied by Newmar, it was determined that the incorrect fuel line was used in at least some of the Chinook heaters that were shipped to Newmar. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 22E-093 Page 3 Description of Remedy :
Description of Remedy Program : Using the range of identified serial numbers with the potential problem,
ITR contacted Newmar and requested the customer contact information for units that Newmar had already sold. The units that were still at Newmar had the fuel lines inspected and swapped out if they were found to be incorrect. ITR has been and is continuing to contact the customers on this list to ensure all of them have had the fuel lines inspected and swapped out if necessary. The incorrect fuel lines are air lines that are identifiable using the writing on the exterior of the hose, as well as visible pin holes. A technical bulletin is being sent out to all customers/dealers informing them of this issue. ITR is covering the cost of any units that need to have the fuel lines swapped out. ITR is billed directly by the dealers/ service locations that perform this work. There were a total of 179 units with this potential problem. As of November 2, 2022, there are 66 customers that need to be contacted/followed up with. Based on the number of customers contacted so far, we have noticed that 25% of the units had the incorrect fuel lines. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The part that should have been installed is a 1/4″ SAE30R7 fuel line. The incorrect part was 1/4″ air line.
By the time ITR was notified about the problem, the roll of air line was used up and production had already transitioned back to using the proper fuel line. Recall Schedule :
Description of Recall Schedule : ITR began contacting dealers and individual customers on February 17,
2022. We plan on continuing to contact customers until all of the units have been inspected and had the fuel lines swapped out if they were found to be incorrect.
Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : NR – NR Purchaser Information :
The following manufacturers purchased this defective/noncompliant equipment for possible use or installation in new motor vehicles or new items of motor vehicle equipment: Name : Newmar Corporation Address : 355 Delaware Street
Nappanee IN 46550 Country : US
Company Phone : 5747737791 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 22E-093
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
Name : ShowHauler Trucks Inc Address : 116 Industrial Pkwy E Middlebury IN 46540 Country : US
Company Phone : 5748256764
* NR – Not Reported

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 22E-093
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
International Thermal Research NOV 04, 2022 NHTSA Recall No. : 22E-093 Manufacturer Recall No. : NR Manufacturer Information :
Manufacturer Name : International Thermal Research Address : 2431 Simpson Road
Richmond 00 V6X 2R2
Company phone : 604-278-1272
Population :
Number of potentially involved : 179 Estimated percentage with defect : 25 %
Equipment Information : Brand / Trade 1 :
Model : Oasis Chinook Part No. : 59600 Size : NR Function : Hydronic Heater
Descriptive Information : International Thermal Research (ITR) was informed of a series of fuel line leaks in the Chinook heaters by Newmar Corporation. Using the pictures supplied by Newmar, it was determined that the incorrect fuel line was used on at least some of the Chinook heaters that were shipped to Newmar. Through a series of communication between ITR and Newmar, and using the serial numbers of the leaking units identified by Newmar, ITR identified the starting and ending shipments to Newmar that included the potentially incorrect fuel lines. ITR determined the recall population as the first serial number of the starting shipment through the last serial number of the ending shipment. This range includes a total of 179 heaters.
Production Dates : NOV 01, 2021 – DEC 31, 2021
Description of Defect :
Description of the Defect : Some of the units had 1/4″ air line instead of 1/4″ SAE30R7 fuel line installed.
FMVSS 1 : 301 – Fuel system integrity FMVSS 2 : NR
Description of the Safety Risk : The incorrect fuel lines could develop a leak. This leak could result in the
increased risk of a fire.
Description of the Cause : 1/4″ air line was used in place of 1/4″ SAE30R7 fuel line. Identification of Any Warning
that can Occur : The incorrect fuel line can break down and diesel fuel leakage can occur at the interior and exterior fuel lines of the Chinook heater. Part 573 Safety Recall Report 22E-093 Page 2 Involved Components : Component Name : Oasis Chinook
Component Description : Diesel Fired Hydronic Heater Component Part Number : 59600 Supplier Identification : Component Manufacturer
Name : NR Address : NR
NR
Country : NR Chronology :
On February 10, 2022, International Thermal Research (ITR) was informed of a series of fuel line leaks in the Chinook heaters by Newmar Corporation. Using the pictures supplied by Newmar, it was determined that the incorrect fuel line was used in at least some of the Chinook heaters that were shipped to Newmar. The same day, ITR made the decision to work with Newmar to address this issue. After acquiring the contact information for the dealers and customers with the affected units, ITR started reaching out to the dealers and customers on February 17, 2022. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 22E-093 Page 3 Description of Remedy :
Description of Remedy Program : Using the range of identified serial numbers with the potential problem,
ITR contacted Newmar and requested the customer contact information for units that Newmar had already sold. The units that were still at Newmar had the fuel lines inspected and swapped out if they were found to be incorrect. ITR has been and is continuing to contact the customers on this list to ensure all of them have had the fuel lines inspected and swapped out if necessary. The incorrect fuel lines are air lines that are identifiable using the writing on the exterior of the hose, as well as visible pin holes. A technical bulletin is being sent out to all customers/dealers informing them of this issue. ITR is covering the cost of any units that need to have the fuel lines swapped out. ITR is billed directly by the dealers/ service locations that perform this work. If any customers/dealers have paid to have this fix implemented, they can forward their invoice to ITR and will be reimbursed. There were a total of 179 units with this potential problem. As of November 2, 2022, there are 66 customers that need to be contacted/followed up with. Based on the number of customers contacted so far, we have noticed that 25% of the units had the incorrect fuel lines. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The part that should have been installed is a 1/4″ SAE30R7 fuel line. The incorrect part was 1/4″ air line.
By the time ITR was notified about the problem, the roll of air line was used up and production had already transitioned back to using the proper fuel line. Recall Schedule :
Description of Recall Schedule : ITR began contacting dealers and individual customers on February 17,
2022. We plan on continuing to contact customers until all of the units have been inspected and had the fuel lines swapped out if they were found to be incorrect.
Planned Dealer Notification Date : NR – NR Planned Owner Notification Date : NR – NR Purchaser Information :
The following manufacturers purchased this defective/noncompliant equipment for possible use or installation in new motor vehicles or new items of motor vehicle equipment: Name : Newmar Corporation Address : 355 Delaware Street
Nappanee IN 46550 Country : US
Company Phone : 5747737791 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 22E-093
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
Name : ShowHauler Trucks Inc Address : 116 Industrial Pkwy E Middlebury IN 46540 Country : US
Company Phone : 5748256764
* NR – Not Reported

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