Dometic 3316250.712 Single Zone CT Thermostat
Dometic 3316250.712 Single Zone CT Thermostat — Product description
The Dometic 3316250.712 is the single-zone CT thermostat that runs one Dometic air conditioning and heating system. Black capacitive touch face, backlit LCD, and 12V DC power. It controls cool, furnace, heat strip, and heat pump from one clean wall unit, the standard replacement for a tired Dometic control panel.
The Dometic 3316250.712 is the single-zone CT thermostat that runs the show for one Dometic air conditioning and heating system. If you've got a Dometic AC unit on your boat or RV and the old control panel has quit, gone flaky, or you just want a cleaner face at the wall, this is the standard replacement. CT stands for capacitive touch, and this is the black-cased, boxed version.
Here's what it actually does. It's a single-zone controller, so it manages one climate zone off one system. On most boats under 40 feet and the majority of RVs, that's exactly the setup you have. One air handler, one thermostat, one comfortable cabin. It talks to the full range of Dometic functions too. Cool, furnace, heat strip, and heat pump all run from this one wall unit, so whether you're knocking the humidity down in July or taking the chill off a spring morning, you set it in the same place.
The face is capacitive touch, the same kind of glass-style surface you'd find on a modern phone. No mechanical buttons to corrode or stick. The backlit LCD gives you set-point, current cabin temperature, fan speed, and mode, all readable at a glance, day or night. Fan control is genuinely flexible. You get Low, High, or Auto on the speed side, and Auto or On for the mode. Run the blower only when the compressor calls for it, or keep air moving continuously when you want to even out temperature across the cabin.
It runs on 12V DC, which means it wires into your house bank the same way the rest of your DC gear does. One thing we'll flag from experience, and from what owners report: get your wiring right before you power it up. Confirm 12V polarity and make sure the strip versus heat-pump jumpers match your actual system. A mismatch with an older Dometic AC can trip a breaker on the first startup. Take the extra ten minutes with the wiring diagram and you'll save yourself a headache.
Programmable scheduling is built in, so you can have the cabin pre-cooling before you step aboard on a hot afternoon. Worth knowing: like a lot of 12V thermostats, the schedule can reset after a full power loss, so if you disconnect the bank for the season you may need to re-enter it. That's not a fault, just how these work.
A word on the touch face and the salt-air life. Capacitive glass and heavy humidity don't always get along. Keep the surface clean and wiped down and it'll read reliably for years. Let salt film build up and touch response gets cranky. Same story with the LCD backlight. Give the thermostat a clean ground and, ideally, its own fused feed rather than sharing a noisy circuit, and the display stays bright and steady. A clean, dry face and a solid ground go a long way toward a control that simply does its job and gets out of the way.
Who's this for? Anyone replacing a dead or dated Dometic single-zone control, or anyone building out a Dometic AC install who wants the current-generation black touch thermostat at the wall. It's not a multi-zone controller, so if you've got separate air handlers fore and aft that you want to run independently, this isn't the part for that job. For the single-system boat or coach, though, it's the right piece, and it's the one most of these systems shipped with from the factory.
We're an authorized Dometic dealer, so you're getting the genuine part with the full manufacturer warranty behind it. If you're not sure this is the exact control your system wants, send us your AC model and we'll confirm the fit before you buy.
Key Features
- Single-zone control for one Dometic air conditioning and heating system, the standard setup on most boats and RVs
- Black capacitive touch face, no mechanical buttons to corrode or stick
- Backlit LCD shows set-point, cabin temperature, fan speed, and mode at a glance
- Runs on 12V DC, wiring straight into your house bank like the rest of your DC gear
- Controls cool, furnace, heat strip, and heat pump modes from one wall unit
- Fan speed control with Low, High, and Auto settings
- Fan mode control with Auto and On, so the blower runs continuously or only on demand
- Programmable scheduling to pre-cool the cabin before you get aboard
Why Buy from NVN Marine
- Authorized Dometic 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 | Dometic 3316250.712 Single Zone CT Thermostat, Black |
|---|---|
| Brand | Dometic |
| Manufacturer Part Number | 3316250.712 |
| UPC | 713814321130 |
| Zone Control | Single Zone |
| System Compatibility | Cool / Furnace / Heat Strip / Heat Pump |
| Programmable | Yes |
| Display | LCD |
| Voltage | 12 Volt DC |
| Fan Speed Control | Low / High / Auto |
| Fan Mode Control | Auto / On |
| Case | Black Capacitive Touch |
| Packaging | Packaged In Box |
| Use With | Dometic Air Conditioners |
Frequently asked questions
What does single-zone mean on this thermostat?
It controls one climate zone off one Dometic system. One air handler, one thermostat. That's the setup on most boats under 40 feet and the majority of RVs. If you have separate air conditioners you want to run independently, you'd need a multi-zone control instead.
Does the 3316250.712 control a heat pump?
Yes. It runs cool, furnace, heat strip, and heat pump modes, all from the same wall unit. So it handles both your cooling and your heating on a compatible Dometic system.
Is a control board included in the box?
No. This part is the standalone black capacitive-touch wall thermostat, packaged in a box. It works with the Dometic single-zone control board already in your system. If you need the full kit that includes a control board, that's a different Dometic part number, so send us your AC model and we'll point you to the right one.
What voltage does it run on?
12 volts DC. It wires into your house bank the same way the rest of your 12V gear does. Confirm polarity before you power it up.
How do I reset my Dometic thermostat?
A full power cycle at the AC breaker or the battery disconnect clears the unit and lets it re-initialize. For a factory reset of the programming, follow the steps in the Dometic single-zone operating instructions for this model.
Why is the capacitive touch not responding well?
Salt film and heavy humidity are usually the culprit on the water. Wipe the glass face clean and dry, and response comes back. Keeping the surface clean is the single best thing you can do for a touch thermostat in a marine or coastal environment.
Can it run two air conditioners or separate cabins?
No. This is a single-zone control, so it manages one system. For a boat or coach with independent fore and aft air handlers, you'd want a multi-zone Dometic control, not this thermostat.
Will it work with any RV or marine air conditioner?
It's built specifically for Dometic single-zone air conditioning and heating systems. It isn't a universal thermostat. Before you buy, confirm your AC model so we can verify this is the control your unit expects.
Does it keep my program after the power is off?
The programmable schedule can reset after a full power loss, which is normal for 12V thermostats. If you disconnect the house bank for the off-season, plan to re-enter your schedule when you power back up.
