hi Phil
it appears to be a code 33.
thanks for all your help
BY the way Andy i called customs for you they will be waiting for you.
From the manual:
Code 33: High Engine Coolant Temperature Fault (Engine coolant temperature exceeded design limit).
Corrective Action:
1. Check the engine coolant level and add coolant and repair leaks as necessary.
2. Check for and remove any objects blocking the air inlet or outlet openings in the bottom of the genset.
3. Reduce the number of appliances connected at the same time. (Note that height altitude and high ambient temperature decreases engine cooling capacity.)
4. Clean and flush the cooling system to remove coolant passage fouling.
5. If the genset overheats only underway, see the coach manufacture regarding air baffles or other means to direct cooling air into the genset.
My approach would be to first top off the coolant. Make sure you are using the right stuff (red stuff or green stuff). Then run the generator under load as described above to see if you can get it to fail without the AC on.
If it does not fail, turn the AC on to see what happens.
There is more but start with that. Note that it may not be the coolant that is overheating but that the generator "thinks" it is because it is getting bad information from a sensor.
Regardless, it would be a good idea to have the cooling system flush and filled if it has not been done in a year or two. It is a job you can do yourself, but depending on the installation, the drain cap may be difficult to get to.
If you wish, send me your phone number by private message and I can share more.
