Campaign 24V-427

50 AMP circuit breaker was incorrectly installed when a 20 AMP breaker is required, which can result in overheated wiring

Defect summary

Thor Motor Coach (TMC) is recalling certain 2025 Thor Tranquility and Sanctuary motorhomes. A 50 AMP circuit breaker was incorrectly installed when a 20 AMP breaker is required, which can result in overheated wiring.

Consequence

Wiring that overheats increases the risk of a fire.

Remedy

Dealers will install a 20 AMP circuit breaker, free of charge. Owner notification letters were mailed July 29, 2024. Owners may contact TMC customer service at 1-877-500-1020. TMC's number for this recall is RC000305.

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.safercar.gov.

Source: NHTSA ODI recalls file, campaign 24V427000. Text as published by NHTSA.

Vehicles covered

2 product lines are covered

Owner complaints filed with NHTSA about electrical system on these vehicles: 0, of which 0 involved a crash, fire, injury or death. Complaints are not verified by NHTSA.

Vehicles covered by campaign 24V-427
Make	Model	Model years	Complaints on this component
Thor Motor Coach	Sanctuary	2025	0
Thor Motor Coach	Tranquility	2025	0

Source: NHTSA ODI recalls and complaints files. Equipment, tire and child-seat campaigns list products, not vehicles.

Investigation

No NHTSA investigation is linked to this recall

Most recalls are started by the manufacturer. This one lists "Manufacturer" as its origin.

Before the recall

No service bulletins on this component preceded the recall

Distinct manufacturer communications on the same component group, make, model and model year in the 24 months before the report date.

Source: NHTSA manufacturer communications file.

Service bulletins

21V-396 May 26, 2021
Flex-190 Solar Panel junction box may short
20V-711 Nov 17, 2020
BIM (Battery Isolation Manager)/BIR (Battery Isolation Relay) is not watertight when exposed to engine compartment heat
20V-498 Aug 21, 2020
Electronic control center circuit board may be damaged from voltages over 17 volts causing damage to the circuit board
20V-423 Jul 22, 2020
100amp converter breaker was incorrectly installed at the battery tray when a 70amp breaker is required, possibly resulting in the wiring…
20V-419 Jul 20, 2020
Battery cable may not have been properly secured within the chassis rail, which can cause it to contact the exhaust manifold and heat shield
20V-303 May 27, 2020
Wire harness in the rear of the vehicle may contact the vehicle frame, resulting in damage to the circuits that support the fuel pump and the…