Why is my Dometic duo thermostat not working?

But such is not the case and here are some common Duo-Therm thermostat problems and their solutions: 1. The thermostat won’t stay on or turn on – the first place to look will be your on/off switch. If there is a crack in the solder making the connection, then no power will be sent to the switch.

How to initialize a Dometic LCD thermostat?

How do I initialize a Dometic Thermostat? 1 Ensure your thermostat is Off. 2 Press the“+” button and, while holding it, also press and hold the On/Off Mode button for three seconds. 3 LCD will show ― ―. 4 Press the On/Off Mode button again to turn the system off. 5 This completes the initialization. More …

Which is the best Dometic thermostat for camping?

Complete temperature control. The Dometic Multi-Zone Comfort Control Center Thermostat can control your Dometic heating and cooling appliances. Weather you are camping in the middle of winter or driving in the hot and humid conditions of the summer, this Dometic Atwood Thermostat is perfect control.

Is the Dometic CT single zone thermostat dangerous?

WARNING This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to

What to do if your Dometic thermostat does not work?

If the thermostat comes on but does not provide temperature control, switch it to a lower temperature than its operating tempera Wait for ten minutes and turn it back on to the previous temperature. If the steps above do not work, reset the thermostat according to its instruction manual.

How does the Dometic single zone thermostat work?

Press the “+” button to toggle between “d1” and “d2”, “d1” for 1 degree F differential and “d2” for 2 degrees F differential. In the Heat Pump mode, the system cycles the compressor On and Off based on the room air temperature and the temperature set point.

What does the error code E1 mean on the Dometic thermostat?

Error Code: E1 Results from a loss of communication between the Single Zone LCD thermostat and its module board. LCD will cycle between E1 and the previous mode setting. The system eventually shuts down. E2 Open circuit or out of range Indoor Temperature Sensor.

How to turn on Comfort Control Center 2 thermostat?

To turn ON the CCC 2 thermostat when the back light is off, first press any button to wake up the CCC 2 thermostat. Then press and release the ON/OFFbutton. The LCD will display the last programmed settings. To turn OFF the CCC 2 thermostat press the ON/OFF button and release.

Why does my Dometic refrigerator have no power?

The 11.8V is a bit low as far as the battery condition is concerned but not low enough to account for the refrigerator not working.The schematic on page 22 shows a 4a fuse in the red wire between the 12V supply and the relay which could be part of the problem if you have not checked it.

Where are the 12 VDCs on a Dometic fridge?

Its good you checked the 12 VDC distribution panel (and any fuse to fridge) where all the fuses are that serve the entire coach,. If 12 VDC is present there and through any fuse (or a branch circuit) to the fridge, it ought to be present at the very input to the fridge itself unless there’s a bad ground or a wiring or terminal problem/open.

Where is the power block on a Dometic fridge?

You should find that terminal block on the floor of the space inside of the rear access panel and usually, it is to the left side, near the 120V power outlet. If you do not have power there, you must find what the course is.

How can I tell if my Dometic Fridge has no power?

If you do not have power there, you must find what the course is. In most cases, there is a fuse on the RV’s 12V distribution panel that supplies it. There is also a 3A fuse on the main circuit board for the 12V supply. Either of those will give the symptom that you have.

Is there a way to bypass the duo thermostat?

How to Bypass Duo-Therm Thermostat. These will be generic instructions as most thermostats operate the same way and are wired in the same basic manner. The first thing to do is to turn the circuit breaker to the AC off before you do anything. Next, using a flat head screwdriver and pop the cover and the main body of the thermostat off.

What does a 12VDC wall thermostat do?

Thermostats are really nothing more than temperature controlled switches. When the need for Cooling or Heating exists the thermostat sends a 12VDC(+) signal to the control relays or a P.C. board which in turn energizes the air conditioner components or the furnace.

How is the air conditioner controlled by the thermostat?

All of the air conditioning functions are controlled by the wall mounted thermostat . These thermostats utilize a 12 VDC electrical circuit which is supplied by the vehicle manufacture or the installer of the A/C unit. Most of the thermostats provided by Recreation Vehicle Products are combination (Heat / Cool) thermostats.

What is the wiring diagram for duo therm heat pump?

Our intent is to provide you with a guideline of checks to make, should you encounter one of the following symptoms. duo therm wiring diagram duo therm heat pump – Dometic Rooftop RV Air Conditioner question. Search Fixya.

What is the symptom of duo therm Comfort Control Center?

Duo-Thermﬁ Comfort Control Center Systems SYMPTOM CAUSE REFER TO STEP This program will address the most common system problems associated with the Duo-Therm Comfort Control Center supplied by The Dometic Corporation.

What to do if your Dometic heater is not working?

1. Clearing communications issues: your unit can get into a situation where the thermostat is not communicating with one or both upper boards. Turn the thermostat off, and turn power to the AC units off and on. Then turn the thermostat on and see if it works better. 2. Reset the thermostat to factory specs.

Is it possible to troubleshoot an AC thermostat?

If you have a few basic home improvement skills, and the manual of your AC thermostat to hand, then by following some very simply rules, you should be able to troubleshoot your air conditioning unit with no problems at all. If your air conditioning unit won’t come on at all, then you should check the thermostat.

Why is my Dometic air conditioner not blowing cold air?

Always check the simple things first. When you notice that your Dometic air conditioner is not blowing cold air, check the power panel. Your problem may be as simple as a tripped or blown fuse. This issue does not take a lot of time to fix.

What happens when you turn the refrigerator compressor to coldest setting?

Turning the cold control to the coldest setting will keep the compressor running longer and make lots of cold air. But turning the air door to the coldest setting closes the airway to the food section. Lots of cold air is made, but most of it stays in the freezer section, and the food section actually gets warmer.

Why is my Dometic AC unit not working?

Debris, leaves, dirt, grime and other contaminants can get into your AC unit and cause it to break down. Even insects, rats, and mice can get inside and ruin your perfectly good Dometic air conditioner. Covering the unit is a way to protect it and the capacitor from potential damage.

What should I do if my AC compressor is not working?

The compressor is made up of several pieces that are easily replaceable. With regular inspections, the part failing is spotted early enough and replaced, effectively preventing the risk of having an AC compressor problem. An AC compressor not working may cause some bit of concern and discomfort.

Can a clogged condenser cause a compressor to shut down?

A clogged condenser coil can overheat the compressor. In the best case scenario, the compressor will simply shut down before it is damaged. In the worst case scenario, continuous overheating can damage the compressor so much that it may need to be replaced.

Why do I get high compressor current draw?

2 The compressor amp draw will vary depending on the temp of the air comming into the condenser, it is not a set figure, the hotter it is outside the higher the amp draw. If you have damage or blockage to air flow over the condensor you will get high compressor current draw.

Can a duo thermostat be replaced in a RV?

There have been many digital thermostats installed using information found here. The Duo-therm thermostats are easily replaced. The power for the replacement thermostat is it’s own AA batteries. Some RV batteries live a long and useful life, some are murdered.

Where can I buy a Dometic duo thermostat?

2-Pack of Dometic Duo Therm -Compatible RV AC Replacement Filters – 14″ x 7.5″ – RV Air Conditioner Filter – Made in the USA – Comparable to 3313107.103/3105012.003 – By Mission Automotive . . . . . . Only 12 left in stock – order soon.

What to do if your Dometic thermostat is not working?

To fix this problem the first solution option you have is to do the system reset protocol. If that doesn’t fix the issue, then you have to trace the cable from the thermostat to the rooftop AC. Check both connections to make sure they are tight and once you unplug the cable, you will have to do a system reset.

What to do if your thermostat is not working?

If that doesn’t fix the issue, then you have to trace the cable from the thermostat to the rooftop AC. Check both connections to make sure they are tight and once you unplug the cable, you will have to do a system reset. Or a component in the system failed somewhere and it may be the best thing to replace the thermostat.

How to know if your RV thermostat is bad?

If you do not have a manual for this comfort control system, just click here to get a downloadable copy. or go to the nearest Dometic dealer to see where you can get a hard copy. How do You Know if Your RV Thermostat is Bad? The average life of an RV thermostat is roughly 10 to 15 years.

How does a thermostat work in an RV?

An RV thermostat is the piece of equipment that allows you to control your RV’s heating and cooling systems. It may be analog, digital, pre-programmable or not, and can also help your unit automatically shut off and turn on to maintain appropriate temperatures. How does an RV thermostat work?

Is there a wiring diagram for a Dometic duo therm brisk air conditioner?

Wiring diagram for model Bxx1c0 – Dometic Duo Therm Brisk Air Conditioner. Posted by Anonymous on Aug 23, and have your model number available for them. They might be able to locate a copy of the wiring diagram of your air conditioner for you.

What causes a duo-therm Comfort Control Center system?

DUO-THERM COMFORT CONTROL CENTER SYSTEMS . . . Continued SYMPTOM CAUSE REFER TO PAGE (Roof Mounted Air Conditioner Sec. continued) 11. Air distribution box unit: Insufficient cooling with reduced air output. 12. Duct in ceiling unit: Insufficient cooling with reduced air output. 13. Excessive cooling. 14. Noisy Operation.

Can you put a new thermostat on an old Dometic unit?

You can’t go to the new thermostat unit with a ducted unit without changing all air conditioners and heat pumps, since they are incompatible. If you have an old 4 or 5 button thermostat, you can’t just put in a new Dometic unit.

What should I know about Dometic duo therms?

dometic duo therm troubleshooting Dometic is a Swedish group that manufactures many products that are mostly focused on recreational vehicles. These are sometimes even used in hospitals or boating because of their portability. You can easily move around their equipment and even carry them due to their design.

Why does my thermostat not match the temperature?

The AC or heater do not come on – you have been able to set the temperatures for either one but when those temperature levels arrive the appliances do not turn on. The AC or heater won’t turn off – once the temperature setting is reached the appliances continue to work. The setting on the thermostat does not match the temperature in the room.

Why is my thermostat not responding to my commands?

The thermostat does not respond to your commands – you push the buttons and nothing happens. It has no power – Wires could come loose, a fuse breaks or it may be disconnected.

Why is my duo thermo fan not working?

Compressor runs and fan does not. Also the ac unit runs even when the thermo is in the off position. I moved this unit from the front ( where it worked fine ) to the rear spot and put a new 15k Brisk Air II up front.

Why is my Dometic duo therm not turning on?

Dometic Duo Therm Troubleshooting Unit Not Switching On One of the most common problems that users have reported about getting on the Dometic air conditioner is that it is not switching on. If you are also facing this error then the first thing to check is your connections.

What happens when an air conditioner fan is not working?

When the fan is not working properly, you won’t feel air coming out of your vents, and the air conditioner coils will end up freezing over. Therefore, it’s essential to keep it in good condition if you want your air conditioner to work. Follow these simple steps to test your air conditioner fan motor:

Where is the fan located in an AC unit?

Here is a crash course on a few things you need to know about your Air conditioning unit. The fan in your AC unit helps circulate air throughout your home. The air conditioner fan is located in the condenser unit, the portion outside your home.

Why does my AC thermostat not turn off?

If you notice that you try to turn off your AC unit, but it keeps running, then you will have to fix it right away to prevent damaging of the machine or decrease in longevity. There are a few reasons as to why your AC unit won’t turn off. First, it could be a busted thermostat, in which case you will have to replace it with a new one.

What are the instructions for a Dometic furnace?

Use these instructions to ensure correct installation, function, and operation of product. Dometic Corporation reserves the right to modify appearances and specifications without notice. DOCUMENT SYMBOLS

How to set furnace on / off temperature differential?

1. Make sure CT thermostat is Off. See “D. Quick Reference” on page (3). 2. Press the button, and simultaneously press and hold the / Modebutton for three sec- onds. LCD will show “- -”. This completes system initialization. Furnace On / Off temperature differential should be set at this time.

How to turn on the off mode on the Dometic thermostat?

Press the On/Off Mode button to go to the available modes. Press to advance to available mode. The green LED will indicate the mode selected either (Off, Fan, Cool, Furnace, Heat Pump or Heat Strip) To display the Inside Temperature your thermostat should be in Off Mode.

Clearing communications issues: your unit can get into a situation where the thermostat is not communicating with one or both upper boards. Turn the thermostat off, and turn power to the AC units off and on. Then turn the thermostat on and see if it works better. 2. Reset the thermostat to factory specs.

How to troubleshoot a Dometic thermostat error cone?

Dometic 3313192 Thermostat Troubleshooting. Error cone. Solution. E1. Loss of communication between the Single Zone LCD thermostat and the module board. LCD will cycle between E1 and the previous mode setting. System will shut down. E2. Open circuit or out of range Indoor Temperature Sensor.

Why is my Dometic air conditioner not turning on?

One of the most common problems that users have reported about getting on the Dometic air conditioner is that it is not switching on. If you are also facing this error then the first thing to check is your connections. There might be a button that is switched off or your unit might not be getting power correctly.

What happens if the AC Fan in your RV is not working?

But if the AC fan in your RV does not work right you may lose your cool. The fan is one of the more important parts in your RV AC unit. Keeping it maintained will save you a lot of trouble and help you remain cool. RV AC Fan Not Working: There are a lot of reasons why your RV AC fan does not work.

Why does my air conditioner fan come on when I Turn on the heat?

While it seems to be a major problem, in reality it is a very simple fix. If your fan comes on when the heat it turned on the problem is that the air conditioner fan is still in the on position. To fix this all you have to do is turn your controls to auto and the fan should stop.

What should I do if my RV furnace is not working?

In case it is less at 10 V then one of the onboard batteries is likely to be the issue. Without adequate electricity being supplied to the furnace or the thermostat, it might not be able to fire, and the fan may or may not work at all. Consider swapping to a backup battery which can generate in excess of 10 Volts, if feasible.

What kind of Relay does the coach air conditioner use?

There are are 12 volt relays between the control panel and the Ac units – that connect 120 volts to the motors. Rich. Went to the coach today, fired up the rear air conditioner to check it out and it fired up and worked just fine. Input on what’s going on appreciated.

Why is my thermostat not working in my RV?

The thermostat is not connected to the onboard batteries in some RVs. These units are usually powered by AA batteries. In the majority of these cases, the display screen is going to blink or it might also provide you with a blank screen. In such cases, replacing the batteries will be a sensible idea.