Coleman Mach 1460-3521 RV AC Transformer
Coleman Mach 1460-3521 RV AC Transformer — Product description
Genuine Coleman 1460-3521 transformer for Mach rooftop air conditioners. If your Mach 6633, 46413, 7330, or 8330 unit has power but the fan and compressor won't start, a dead transformer is a common cause. This is the OEM part that gets the control circuit talking again, and it's a straightforward swap for most RV owners.
When your Coleman Mach rooftop air conditioner stops cooling and nothing kicks on, a failed transformer is one of the first things worth checking. This is the genuine Coleman 1460-3521 transformer, the same part that runs the control circuit inside several popular Mach units. It's a small piece that does a big job.
It's built for the Coleman Mach 6633 and 46413 air conditioner models, and it also fits the Mach 7330 and 8330 ceiling assembly models. If you've got one of those on the roof, this is a direct replacement. Match your model number before you order so you know you're getting the right piece.
A transformer in an RV air conditioner does quiet, important work. It takes the incoming line voltage and steps it down to the lower control voltage the thermostat and relays need to talk to each other. When it fails, the fan and compressor lose their signal, and the whole unit just sits there doing nothing even though it's getting power. Swapping in a fresh transformer often brings a dead-feeling AC right back to life.
Replacing it is a job most handy RV owners can tackle with basic hand tools. You'll want to kill power at the breaker first, pull the shroud, and note where the leads land before you disconnect anything. Take a photo of the wiring so reassembly is straightforward. If you're not comfortable working around AC line voltage, hand it to an RV tech. It's a small part, and getting it wired correctly matters.
Whether you're chasing down a no-cool problem before a summer trip or just keeping a spare in the parts bin, this is the OEM piece that belongs in a Mach unit. Coleman has been building rooftop RV air conditioners for decades, and these units are worth keeping alive with the right parts rather than replacing the whole assembly over one failed component. We're an authorized Coleman reseller, so you're getting the real thing, not a guess, and we're happy to help you confirm the fit before you buy.
Key Features
- Genuine Coleman OEM transformer, part number 1460-3521, for a proper factory fit
- Fits Coleman Mach 6633 and 46413 air conditioner models
- Also fits Coleman Mach 7330 and 8330 ceiling assembly models
- Steps line voltage down to the control-circuit voltage your thermostat and relays need
- Direct replacement for a failed transformer causing a no-cool or no-start condition
- Compact, serviceable part most RV owners can swap with basic hand tools
Why Buy from NVN Marine
- Authorized Coleman reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Coleman Mach 1460-3521 RV Air Conditioner Transformer |
|---|---|
| Brand | Coleman |
| Manufacturer | Coleman RVP |
| Manufacturer Part Number | 1460-3521 |
| UPC | 755790407118 |
| Keystone Part Number | 14603521 |
| Component Type | Transformer |
| Compatible Air Conditioners | Coleman Mach 6633, 46413, 7330, 8330 |
| Product Type | RV Air Conditioner Replacement Part |
Frequently asked questions
Which Coleman Mach models does this transformer fit?
It's made for the Coleman Mach 6633 and 46413 air conditioner models, and it also fits the Mach 7330 and 8330 ceiling assembly models. Check your unit's model number against that list before ordering.
Is this a genuine Coleman part?
Yes. This is the OEM Coleman 1460-3521 transformer. We're an authorized Coleman reseller, so it's the real factory component, not an aftermarket copy.
How do I know if my transformer is bad?
A failed transformer usually leaves the unit powered but unresponsive. The fan and compressor won't start even though the breaker is on and the thermostat is calling for cooling. It's a common failure point worth checking early.
Can I replace it myself?
Most handy RV owners can. Cut power at the breaker, pull the shroud, photograph the wiring, and transfer the leads to the new transformer one at a time. If you're not comfortable around AC line voltage, have an RV tech do it.
Where can I find replacement parts for my Coleman AC?
Right here. We stock genuine Coleman Mach parts like this 1460-3521 transformer, and we ship same day on in-stock orders placed before 3 PM ET.
Why isn't my Coleman Mach RV AC cooling properly?
There are a few common culprits: a tripped breaker, a dirty filter, restricted airflow, or a failed electrical component like the transformer. If the unit has power but nothing runs at all, the transformer is a smart place to start.
