pulsarjab

I need some help tracing issues with Atwood furnace. On a recent trip, it just quit. This is a 2000 Diplomat with a four button thermostat and the furnace has a Dinosaur control card. The thermostat has been reset and seems to be working with the Duo-Therm controller as I hear a click when the thermostat is turned on Furnace. On the furnace side, there is power to the 12 volt circuit breaker and if I bypass the relay, the fan will operate properly. The controller card has an led that is not lit and the furnace will not come on. Is there a good source for diagnosing the issues? I am open for all ideas and help. Thanks for all the help I have gotten from this group over the years. Greg 2000 Diplomat

Resetting a failed safety device, with a magnet, designed to prevent overheating and possibly fires, what could possibly go wrong? Yes, I am one of those guys that installed a Frigidaire after many years of replacing parts and worrying about the next failure with possible tragic results. Life is too short and too precious. With a little planning and one days effort, a household unit can be installed.

This gear box is not on the motor, it is the rack and pinion gear. There are two racks powered by the motor through long shafts. The gear is in an open box set up against the rack and has a roller on either side of it, all mounted on a short shaft connected to long shaft from the motor.

I have had to replace the gear shear pin several times on our 2000 Diplomat in last 12 years. This time, I would like to pull the gear housing and thoroughly clean the shaft the gear mounts to. Has anyone removed the rack and pinion gear box? With the slide in does the slide need to be supported if the gear box is removed? Any ideas would be appreciated.

Solution. First, the headlight switch was replaced to fix the panel lights and gauges not working correctly. Headlights were replaced years ago but never driving at night, was not noticed if they were cycling. The lights were always dim. After replacing the switch we decided to tackle the dim head lights. Voltage measurements showed 10 volts to lights, and after a period they would start cycling. We replaced the light circuit with a Amazon relay kit, splicing it into the circuit and using the wires from the switch to turn on the relays. This provided peak voltage to lights and eliminated the cycling. Thanks for all the ideas. I am very fortunate to have a great friend, Myron, that knows a lot about these RVs. He tackled this project and did a great job of diagnostics and installation. Without his help, I would not have tackled the project. The idea of re-engineering an electrical design is best left to the experts.

That is what it is acting like. I changed to halogen and the additional draw may be causing the issue. However, both lights are in sync which would indicate a single circuit breaker and there is nothing in the front bay labeled headlights other than a 25 amp fuse. The wiring diagrams do not show anything like that either. Installed a new switch, not a fun job, will continue looking today.

Our 2000 Diplomat cycles the headlights off and on when the switch is turned on. Is there a circuit breaker for the lights and where is it located? The dash and parking lights remain on. Wiggling the switch has no affect.

It has been called the lift pump. It comes on briefly each time you turn the key on, to build fuel pressure.

UPDATE.............First, I want to thank all of you for the support. We have enjoyed our Diplomat for 15 years and this is the first major issue we have had and we have 128,000 miles on it. Things do wear out, ask my doctor. Anyway, first issue, Cummins needs to know the engine serial number in order to identify the part, I spent 45 minutes on the phone with support but was not able to read number. They suggested I get a shop to identify the serial number by reading the onboard computer. I also contacted www.monacocoach.com and gave then the Vin number, They were able to provide the engine serial number. I contacted a local shop Cummins recommended, just a mile from my location, and they were able to verify serial number, checked the leak, and ordered the parts, The parts arrive latter this week and will be installed by them. As everyone knows, inflation is affecting everything and diesel parts and good mechanics are no exception. Five hours of labor and $500 in parts is not cheap, but considering the service, I am dancing. Thanks again for all the help. I was not able to locate the three bolts on the top of the pump but after all these years of good service, replacement was a logical step and a big relief.

Need a little help. Pulled into Florida and noticed fuel leaking, when engine running, from I think the lift pump. I have contacted local Cummins shop and took pictures, they need a part number. Does anyone have this information? I see many have changed out to a FASS system but I am needing a quick fix and will address that latter.

LP service dealer looked at set up. He explained there was a check valved inside the tank that prevented the hose to be under constant pressure. I went to three different hose companies but none of them had LP 1/2 inch hose, the largest they carried was 3/8. Finally found a place that had correct hose and they made one with correct fittings. $100 hose and 15 minutes of installation and we are good to go. Thanks for all the help.

Maybe the tank they had would not accommodate a fill fitting or maybe it is over engineered. Propane dealer looked at it and walk me through the repair, they could not do it. Seems simple, remove the hose, have a new hose made, install using original fittings. Will tackle project tomorrow while my diesel shop replaces the emergency brake valve. Cold weather is not good for RV's. I promised the Diplomat, if nothing else goes wrong, we will put it in warmer climates, my bones like that idea too.

It is 32 degrees in Kansas and went to fill the propane tank on our 2000 Diplomat. The hose that goes from the filler connector to the tank was leaking and could not fill tank. Have about half a tank of propane and it is not leaking, appears it leaks only when attempting to fill. I suspect the filler hose has a check valve that may be frozen. Anyone have experience with this condition? Is this a special order hose and fittings?

Has the furnace ever worked, with the AC heat strips?