Air conditioner compressor wouldn't engage in rv. Called a mobile technician. Mobile technician found burnt and melted connectors on the control board. Technician stated the connectors used for 120v power were 12v crimp connectors and had burned and melted from the amperage. Technician stated that these used connectors were illegal to use for 120v. This is a safety concern and could result in a fire. Stated we were lucky the control board melted and didn't result in a fire and burn down the coach.
The worst 2021 Thor Motor Coach Ace problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Electrical2
- Acceleration1
- Engine1
- Suspension1
- Transmission1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical2
- Acceleration1
- Engine1
- Suspension1
- Transmission1
Recalls 1
Visibility: glass, side/rear
- What is wrong
- Thor Motor Coach (TMC) is recalling certain 2020-2021 ACE, 2021 Four Winds and 2020 Gemini, Axis, Compass, Delano, Windsport, Hurricane, Outlaw, and Vegas motorhomes. The adhesive bond between the glass and the metal hinge frame of the frameless windows may fail which would then allow the glass to detach and fall out.
- Risk
- If the window glass detaches while the vehicle is moving it could become a projectile, increasing the risk of a crash.
- Remedy
- TMC will notify owners, and dealers will inspect the frameless windows for proper adhesive bond strength, replacing the windows as necessary, free of charge. The recall began July 10, 2020. Owners may contact TMC customer service at 1‑877‑855‑2867. TMC's number for this recall is RC000192.
Recall number 20V339000 · Recall details
Technical service bulletins for the 2021 Thor Motor Coach Ace 2
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2021 Thor Motor Coach Ace owners say
Most recent owner complaints, unedited.
Returning home from trip, route US I26 in NC, heading down 6 degree hill lost all speed control. The following dash lights came on: ABS, Engine Service, the Wrench, anti sway control. We were able to roll to the side of the road just before an entrance ramp. There was no acceleration control.
The contact owns a 2021 Thor Motor Coach Ace RV. The contact received notification of the federal safety agency Campaign Number: 21V202000 (Suspension, Power Train) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The local dealer and the manufacturer were made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Compare the 2021 Thor Motor Coach Ace
Other model years
Questions about the 2021 Thor Motor Coach Ace
Is the 2021 Thor Motor Coach Ace reliable?
Owners have filed 3 complaints about the 2021 Thor Motor Coach Ace, close to a typical Ace model year.
What is the most common problem with the 2021 Thor Motor Coach Ace?
Electrical system, with 2 complaints. Next is acceleration (1).
How many recalls does the 2021 Thor Motor Coach Ace have?
1 recall, covering visibility.
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