Coleman Mach 9430A3543 Single-Stage Bluetooth RV Thermostat
Coleman Mach 9430A3543 Single-Stage Bluetooth RV Thermostat — Product description
The Coleman Mach 9430A3543 is a single-stage Bluetooth wall thermostat that gives your RV's rooftop air conditioner and furnace clean heat and cool control from one black digital panel. Pair it to your phone over Bluetooth, set the temperature from the couch, and read the room off a crisp LCD. It runs on 12 volt DC and it's FCC certified.
The Coleman Mach 9430A3543 is the Bluetooth wall thermostat that runs the climate in your RV. It's a single-stage heat and cool controller, which means it drives your Coleman Mach rooftop air conditioner in the summer and your furnace or heat strip when the nights get cold. One black panel, one clean digital readout, and full control from your phone. That's the whole idea.
Here's what makes it worth the upgrade. The old-style mechanical thermostats that shipped in a lot of coaches were fine, but they drift, they're hard to read in a dim rig, and you're stuck standing at the wall to change anything. This one fixes all three. The LCD shows you the set point and the actual room temperature so you always know where you stand. And the Bluetooth radio lets you pull out your phone, open the app, and nudge the temperature from the couch or the back bedroom without getting up.
It runs on 12 volt DC, the same house power that feeds the rest of your RV. So there's no separate transformer to find room for and no 120 volt wiring to deal with at the thermostat. If you've replaced a Coleman Mach wall thermostat before, this drops into the same spot and ties into the same low-voltage control wires. Most folks who are comfortable with basic RV wiring can handle the swap in an afternoon. Kill the power first, note which wire lands where on the old unit, and go slow.
The single-stage part matters, so let's be clear about it. Single stage means the thermostat calls for cooling or heating in one step, on or off, rather than modulating through multiple stages. That's exactly what a standard Coleman Mach rooftop AC and a typical RV furnace want to see. It is not a heat pump controller, and it isn't built for a multi-stage system. If your rig has a rooftop unit for cooling and a furnace or electric heat strip for warmth, this is the right thermostat. If you're running a heat pump, you want a different model in the Coleman Mach line.
Who's this for? Anybody re-doing the interior of a travel trailer or fifth wheel who wants a cleaner, more modern control at the wall. Full-timers who are tired of squinting at a mechanical dial. Anyone whose old thermostat finally quit and wants to upgrade instead of just replace. The black face keeps a low profile against a modern RV wall, and the digital display looks a lot more at home in a current-model coach than a beige dial does.
The Bluetooth pairing is straightforward. Download the Coleman Mach app, put the thermostat in pairing mode, and connect. From there you set your temperature, flip between heat and cool, and check the room from your phone. You can still run everything right at the wall too, so if your phone's dead or you just want to bump it a degree on your way past, the buttons are right there. It's FCC certified, so the wireless side is tested and legal to run alongside the rest of your electronics.
A couple of honest notes. Bluetooth is short-range by design, so the app control is meant for use inside the RV, not from across the campground. And because it's a single-stage 12 volt controller, it needs to be matched to a compatible Coleman Mach system to do its job. If you aren't sure your air conditioner and heat source line up with a single-stage heat/cool thermostat, send us the model numbers and we'll help you confirm the fit before you buy. We'd rather get you the right part the first time.
Key Features
- Single-stage heat/cool control runs your Coleman Mach rooftop AC and your furnace from one thermostat
- Bluetooth pairing lets you set temperature and mode from your phone anywhere inside the coach
- Digital LCD readout shows set point and room temperature at a glance, even in a dim rig
- 12 volt DC operation ties straight into your RV's house battery system, with no separate transformer
- Black low-profile face blends into modern RV interiors
- FCC certified, so the Bluetooth radio is tested to run alongside the rest of your electronics
- Drops into the same spot as an existing Coleman Mach wall thermostat for a clean replacement
- On-wall buttons let you control heat and cool without the app when you need to
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 9430A3543 Single-Stage Bluetooth RV Thermostat |
|---|---|
| Brand | Coleman |
| Manufacturer | Coleman RVP |
| Manufacturer Part Number | 9430A3543 |
| UPC | 755790204151 |
| Control Stages | Single Stage |
| Control Modes | Heat / Cool |
| Connectivity | Bluetooth |
| Display | Digital LCD Readout |
| Operating Voltage | 12 Volt DC |
| Color | Black |
| Certification | FCC Certified |
| Mounting | Wall-Mounted |
| Application | RV Rooftop Air Conditioner and Furnace Control |
Frequently asked questions
What does the 9430A3543 control?
It's a single-stage heat and cool thermostat. It runs your Coleman Mach rooftop air conditioner for cooling and your RV furnace or heat strip for heating, all from one wall panel.
Is this the heat/cool version or a heat pump thermostat?
This is the heat/cool version. It's a single-stage controller for a standard rooftop AC plus furnace or heat strip. It is not a heat pump controller. If you have a heat pump, look at a different model in the Coleman Mach line.
How does the Bluetooth work?
You download the Coleman Mach app, put the thermostat in pairing mode, and connect your phone. From there you can set the temperature and switch between heat and cool from anywhere inside the RV. Bluetooth is short-range, so it's meant for in-coach use, not across the campground.
What voltage does it run on?
12 volt DC. It ties straight into your RV's house power, so there's no separate transformer and no 120 volt wiring at the thermostat.
Will it replace my existing Coleman Mach wall thermostat?
Yes. It drops into the same spot and connects to the same low-voltage control wires. Kill the power, note where each wire lands on the old unit, and swap them over one at a time. Most folks comfortable with basic RV wiring can do it in an afternoon.
Can I control it without my phone?
Yes. The Bluetooth app is a convenience, not a requirement. The thermostat has on-wall buttons and a digital display, so you can set heat, cool, and temperature right at the panel any time.
What does the display show?
A digital LCD readout with the set point and the room temperature, so you always know where things stand. It's a lot easier to read in a dim rig than an old mechanical dial.
Is it FCC certified?
Yes. The 9430A3543 is FCC certified, so the Bluetooth radio is tested to run alongside the rest of your RV electronics.
How do I know it's compatible with my system?
It's built for single-stage Coleman Mach heat/cool systems, a rooftop AC for cooling paired with a furnace or electric heat strip for heat. If you aren't sure your setup matches, send us your air conditioner and heat source model numbers and we'll confirm the fit before you buy.
