Dr4Film

Henderson Line-up Brake & RV in Oregon sells the Safe-T-Plus where you can add on the Super Steer Trimming Unit which basically turns the combined package into what used to be the Howard Steering or Blue-Ox Steering adjustable units. https://supersteerparts.com/product-result/?ymmq=yr_2006~mk_roadmaster-monaco-~md_s-series-8-airbags

It appears that you found a way to access the outdoor entertainment center as the photo shows the door open. Yes, sofas are secured to the floor with bolts.

Photos???

Are you stating that there is no information on the filter?

I thought the sensor was on the bottom of the filter where wiring harness plugs on to. It's that way on the ISC and ISL I belive.

@Frank McElroy will have your answer.

Your Aqua-Hot model should be the same one as mine, the 100-04. It has one control thermostat for both the diesel and the electric. However, it has two separate high limit thermostats, one for the diesel and one for the electric assist. This is explained in the models service manual.

Have you downloaded your wiring diagrams from this site? If not, do so, then look them over carefully for a possible solution.

Double post creates confusion!

@zmotorsports Mike, I totally agree! You would be surprised at the number of owners who do not know that the Webasto diesel burner is their primary heat source and the Electric Assist is the secondary heat source. This is stated very early in the owners manual. The Aqua-Hot has a very specific sequence of events with motors, pumps, sensors, relays, control box, etc. that all need to work for the the Aqua-Hot to run correctly. Anyone of them can cause the unit not to run. I highly recommend every owner to sit down and read the entire manual, owners and service manuals, then and only then they will have a better understanding of its operation. I would bet that most owners have not done that, then they post here to get help.

I had a certified Aqua-Hot mobile service technician work on my Aqua-Hot twice in Flagler Beach. He is local to the area. After the second service call, I determined that he had no clue how to fix my Aqua-Hot. That's when I started searching for someone who I could trust. I eventually found the Hitching Post of Ocala and have been going to them ever since.

It will most likely be in the Front Run Bay aka FRB. Look over your electrical schematics to see where its location is or simply probe all of the fuses to see which one has failed. The 2002 Windsor has the fuse at position #31. Wiring diagrams are on the web site under the download section. https://www.monacoers.org/files/file/48-2002-2003-2004-imperial-sceptor-windsor/

I agree with Mikes assessment of the owner, Jay, being a jerk. He thinks he knows more about the Aqua-Hot than the service tech, Butch. However, I have learned how to deal with Jay over the last few years I have been going there. If I want to get into more detail with regards to the Aqua-Hot I always discuss it with Butch.

@vito.a Yes, black smoke is too much diesel and not enough air in diesel engines that are running and consuming diesel. That's why you see OTR truckers with black smoke coming out of their exhaust stacks when they are laying heavy onto their throttle. Or when these four wheel diesel trucks think they are "smokey and the bandits" by peeling out from a stop light. When your Aqua-Hot fails to fire up multiple times it deposits raw diesel into the combustion chamber that has not burnt. Once the Aqua-Hot does fire up it will blow out white smoke until all of the raw diesel has been consumed. The only way to get black smoke from an Aqua-Hot is to first have it running and someone having messed with the adjustment of the air intake chamber which is generally set at the factory,

@FunTripsUSA Ian, call up Hitching Post of Ocala FL and make an appointment with them for service/repair. They are right down the i-75 Freeway about a 3 hour drive from you. They have power to hookup overnight so they can start on your Aqua-Hot first thing in the am. The AH service tech is Butch and he is excellent. It took me years to find a good AH service tech until I found this one. I drive 160 miles round trip to have my AH service there. I wont take it anywhere else, other than possibly a mobile tech in Melbourne FL. But with then I have to pay for a mobile service call in addition to the actual service. 352-629-0756

The white smoke is excess diesel fuel that did not get used or burned. There are a multitude of possible reasons for the Webasto burner not to fire up and default. Some are not even associated with the burner itself. So just replacing the burner may not fix your problem. I would find a GOOD reputable Aqua-Hot technician to do service on the unit to find out exactly what the problem(s) may be. Where are you located?

Don, are you holding the start position of the switch (top) long enough in this cold weather? The colder it is outside the longer you may have to hold it down to get the engine to turn over.

@Martinvz is the 126V a typo error or is that value correct? The reason for my asking is the EMS-HW50C is set to trip off for high voltage at 133 VAC not the 126 VAC that you have posted. I have been on sites with the voltage running around 126 VAC with no problems.

That is even worse, having an EMS protection system to monitor the shore power and not use it. Reminds me of the movie. Dumb and Dumber.

It amazes me of the number of RVer's who choose not to install an EMS protection system on their shore power cord. I have no sympathy for them at all. In fact this very topic has been discussed on this forum for years upon years so its not like they have not been forewarned of the consequences.

Not much information from that web site and thread. More like a lot of opinions.

The clock-spring is another source of problems with communication between the Smart Wheel and the controller.

Have checked the Monacoers Parts List?

If the pump is completely disconnected then the pressure switch is taken out of the equation. It's best to test the pump when it is completely isolated . It will either run or not.

Do not trust the fuse! Wire around the fuse and do the same test. If the pump does not run then you have a dead pump.