Jim Byrd

If your engine is a 24 valve one the early models has the electric pump mounted on the engine, later years they were either mounted in or close to the fuel tank, depending on chassis manufacturer. My brother in law has a similar problem the had low voltage at the fuel pump, found problem to be corrosion on fuel pump inline fuse holder. Jim

I concur, most likely you have damaged the control board and/or the compressor. Your best option is to contact your local authorized Samsung repair facility. It is difficult to troubleshot or repair the unit with it in the RV. When I has an issue with mine I was told that they would not attempt to work on it while it was in the coach. The control board is only accessible after removing a cover from the top of the refrigerator. Fortunately for me the problem was contributed by not getting the doors properly closed and it caused the evaporator on the refrigerator to freeze up. Sorry to hear of your wounds. Jim

A faulty HI TEMPERATURE cut-out switch will shut the burner down. Once the unit cools down the HI TEMPERATURE will automatically reset and if the thermostat is still calling for heat the burner will relight.

I second RV PARKY, it easy to use, has great features and it's FREE.

I just thought that it was square because the red one that I saw was square. You might me able to modify a red one with a little imagination. After educating myself it looks like the older style valve has a smaller diamond, that being the case it should be relative simple to resize the newer style red tool by shimming the diamond to make it smaller. Sure like your coach, it's a beauty.

If you measure the square valve stem and the ID of the hold to access the stem you should be able to find one in the plumbing department of any good hardware store. An 8 point socket wall also fit a square valve stem.

On left side of the dash, next to the wiper switch.

The Nason switch is to warn you that you not to take off unless you release the brakes. The switch is located one the valve that you set and release the air brakes.

I agree, it's easy to change and readily available. The buzzers that are under my 04 Holiday Rambler are accessible without and dissembling of he dash, just reach up under the dash from the left side of the steering wheel and you will feel them. On my coach the wires were long enough position the buzzer to disconnect the wires when I replaced my buzzer.

There is a pressure switch that monitors when your air brakes are on or off, sounds like that has failed.. The switch is mounted on the AIR BRAKE valve on the drivers console, it's easy to change. They are readily available at any parts store that carry truck parts. I has the same thing happen on my coach. Jim Jim

Sounds like furnace is short cycling. The most likely cause for this condition is an over temperature condition that is caused by restriction in the air flow, You need to check the intake and discharge air duct work for any restrictions. A faulty over temperature protection device that is operating at a lower temperature.than designed could also cause your problem. When I purchased my 04 Holiday Rambler I had the same problem, After much frustration finally determined that it was caused by insufficient air flow in the duct work, the air temperature was found to be greater than setting of the over temperature device. Checked back pressure with a water manometer and found back pressure was greater the manufactures specification. Added an additional discharge vent, problem solved. Jim

I replaced my BIG BOY with a COLE HERSEE part# 48530 Smart Battery isolator 200A. . I have the Blue Sea ACR on my boat, but I chose the Cole Hersee for my MH because it was the exact same physical dimensions and terminal locations as the BIG BOY that it replaces and it was also cheaper than the Blue. The COLE HERSEE has the same operational features as the Blue Sea ACR. It also shares the same disadvantage that one has to make sure not to having your inverter/charger in the charging mode when you have the chassis engine running. Jim

The Talin website says their tank dimensions are 14" x 14" x 14"., price $469. Jim

Not sure about the 1850, I know on the 1870 thru 1875 have the same mounts. To remove them you just remove the small wood trim that is just above the microwave and it provides access to the 2 main screw that fasten the microwave to the wall bracket. The wood trim is is just wedged in there are to fasteners holding the wood trim in place. Jim

There are a couple of aftermarket aluminum ones available. Source Engineering Veurink's RV Center. RV Center