2000 HR Class A motorhome Generator and Jack problem

Its full of fuel and oil.

How much fuel do have? All MHs have a higher than bottom pick up for the gennie, this keeps you from running your tank dry after a too long nap or too many cervases. It can be made worse if the coach is on an angle moving fuel away from the pickup.

The code on the generator blinks 4 times pause and 6 times. Think that is code 46 which is low battery. Where is the generator battery located? The generator is a Conan quiet 7500 diesel. The generator does click like low voltage. Is the battery in the front behind some cover or is it in the back where the 2 12v chassis batteries and 2 6volt house batteries are??

holding switch on after genset starts would most likely not hurt anything, as control board disconnects cranking circuit as it engages run circuits. Model and spec of generator would be helpful, and as OP stated, a description of light blinking pattern would help with diag.

also, if jacks and generator do have a common cause for not working (and
it is not just coincidence), would likely be at battery comnnection or ground connection. also look for blown fuse in battery cable near battery (this would be 200-300amp fuse, like a ANL, ANN, "T" type fuse)
Since gen switch light comes on, you are getting some voltage to gen.Try measuring voltage at gen pos batt. cable connection, and see if it drops when cranking is attempted. You might try using a jumper battery directly to gen, and if it cranks then the problem is battery or cables.

will do thank you

If you have a blinking red light on the generator, it's presumably not a 12V fuse since it is receiving power enough to blink the light. If you post a question in the tech issues forum with the exact generator model and a description of the blinks (assuming it might be some sort of an error code, e.g. three blinks then two blinks, or something like that), you'll be rather more likely to get help from people who really know what's going on.

It would be worthwhile to check that the oil level in the generator is full. Some have very sensitive oil level sensors.

I have power in the coach.Everything works as normal except the generator and jacks. Just odd that both stopped working at the same time. The outside switch for the generator has a blinking red light when you hold it in to start position but the starter does not engage or click. The jacks are hydraulic and the light on the dash lights up but when you press the button to lower them nothing happens.I tested the 2 -6 volt batteries and have 12.6 volts. I checked the breakers in the coach and none were tripped.I don't see where the fuse may be for the generator or the jacks.

Is the battery disconnect switch turned off? Do you have any 12V power to things in the coach?

Electric or hyd jacks. Have you tried the switch at the gen. Does the starter make any noise.