Grech Motors of Riverside, California, filed a recall with the National Highway Traffic Safety Administration on Sept. 30, 2026, covering 134 Type B motorhomes whose roof ventilation fans carry a circuit board that can overheat. The agency’s record states the consequence in one sentence: an overheated printed circuit board increases the risk of a fire. The fans sit overhead, close to the bedding and cabinetry of vans that are built for sleeping in.
The recall belongs to Grech, but the part belongs to someone else, and the paper trail shows the problem arrived through the supply chain months before the motorhome maker acted.
Insufficient capacitance on the fan’s transistors
According to NHTSA campaign 26V628, the printed circuit board inside MaxxAir N-Series Maxxfan rooftop ventilation fans “may fail during certain operations and overheat.” The agency files the problem under the electrical system. The recall report goes a step further into the mechanism: the board has insufficient capacitance on its field-effect transistors, which cannot handle the current flowing through them, and the result is device failure and heat build-up that may ignite a fire.
The full recall report lays out how Grech got there. Airxcel, Inc. of Wichita, Kansas, which makes the fan under part number 00-4900NX, told Grech RV of its own related recall on Aug. 12. NHTSA contacted the manufacturer on Aug. 19, Grech spent August and September analyzing which of its vehicles carried the fan, and the company decided on Sept. 23 that a recall was warranted. The report lists zero warranty claims and no accidents or injuries tied to the fault.
134 vehicles across Turismo, Terreno and Strada
The 134 vehicles break down into three model lines. NHTSA’s report counts 40 units of the 2026-2027 Turismo, 21 units of the 2027 Terreno and 73 units of the 2027 Strada, all built between Jan. 5 and July 30, 2026. The Strada, the largest group, accounts for more than half of the population.
All three are Type B motorhomes built on the Mercedes-Benz Sprinter chassis, according to RV News’s overview of the Grech line. Grech RV entered the business in 2021 and describes the Strada as its flagship, a nine-seat coach that sleeps two, while the Turismo is the compact model. A 2027 Turismo listing shows a 19-foot Sprinter 2500XD that sleeps two people on a power sofa bed, which puts the occupants within a few feet of the roof vent when the fan is running overnight.
The Terreno is the 22-foot model, offered in a Lounge floorplan that seats nine and a Tour floorplan that seats seven, per the same RV News overview. All three share the Sprinter underpinnings, so the recall is not about the chassis at all; it follows the roof fan wherever the fan was bolted down. Production was already catching up with the problem, because the report says Grech implemented a correction in production on June 22, 2026, a date that falls inside the Jan. 5 to July 30 build window the recall covers. The report does not say how many of the 134 were built before the change, and it does not break out the 134 by month of production.
Airxcel’s earlier equipment campaign, 26E036
The motorhome recall is the downstream half of a larger one. NHTSA’s equipment campaign 26E036, filed by Airxcel on June 19, 2026, covers 5,021 of the same N-Series Maxxfan units across the recreational-vehicle market and uses nearly identical language about a board that may fail and overheat. Vehicle makers were due to receive notice by Aug. 7, which is the date the clock started for every coach builder that bought the fan.
The calendar shows how slowly a part-level defect travels. Airxcel’s campaign was reported on June 19; Grech’s own vehicle recall was filed on Sept. 30, 103 days later, after the Aug. 12 notice, the Aug. 19 NHTSA contact and the Sept. 23 decision. Every step in that sequence is dated in the federal record, and none of it involved a customer complaint, because the report lists zero warranty claims.
Against that 5,021-unit equipment total, the 134 Grech motorhomes are a small slice, about 2.7 percent, though the arithmetic is only illustrative because the two campaigns count different things: fans in one, finished vehicles in the other.
The fix is an inspection. Dealers will inspect the fans and replace the printed circuit board as necessary, and the report says owners can also inspect the fan themselves. Dealer notices went out Oct. 2, and the owner notification letters are scheduled for Oct. 30, 2026.
The record leaves one number unstated: how many of the 134 motorhomes actually carry a defective board. The remedy is written as replacement “as necessary,” and with zero warranty claims on file, the only counts NHTSA publishes are 134 vehicles for Grech and 5,021 fans for Airxcel.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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