No power to the panel of my generator

I would think it's not wired in right. The Shore power sensor circuit may be tied in to Generator power. Control panel would bypass this shore power sensing circuit.

The UT number for this generator is UT-03559. The problem is like yours can't find anything online in the line parts or owners manuals for this unit. You may try http://www.ktoutdoor.com/
They were listing this number. doesn't mean they have anything on it but might be worth a try.

Here is alternate idea on recharging the battery use a 12 dc ac adapter for recharging while the unit is in use.

do you meant the engine runs and the gen instrument panel lights come on but you don't get no power outta the outlets , this is because the "dash lights" are run by engine belt drive alternator on older gen sets if it's a 73 im a bettin it's in need of set of brushes on armature and that needs cleaned up as well cus im sure it's black with carbon dust (should be gold in color), there should be a little door you remove on side of gen head that lets you see armature and brushes

These type of gens have a low oil shutoff. Check the oil. Always have spare spark plugs, a cheap fix. My gen always wanted a new plug every year. Look to see if it has a fuel filter.

I am not familiar with your peice of equipment but from your description of the fault being Under Frequency it appears that generator governor is out of adjustment or the governor spring has brcome weak or broken and not allowing the engine to run at the correct speed to produce an output frequency within the allowable tolerance. Governor linkage could also be binding and not moving smoothly to respond properly to engine load conditions. Thoroughly check governor and throttle linkage for free and smooth operation and full range of movement.
Another cause could be that the engine is not getting sufficient fuel causing the governor to have the throttle wide open to try to get engine to run at its correctly governed speed but unable to do so because the engine is not developing enough horse power.

Excite the genset.

with the gen engine running,
1) plug a 3/8 drill into an outlet,
(make sure the drill is set to the forward rotation)
2) hold the trigger in the run position
3) by hand, rotate the drill chuck with a quick flip of your wrist.
*** NOTE: BE PREPARED !!! this will excite the gen-set and the drill will start to run as normal.

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

DO U HAV POWER FROM GEN ?

According to the manual for this gen set, the maximum A/C unit that this can operate is a 13,500 BTU with a 3000 watt baseload at max air temp of 100 degrees F, at a max elevation of 500 ft.

You might have too much load to start the A/C and might need to shed some load (turn off other appliances, TV, lights, etc.) until you have the A/C up and running smoothly.

I would suggest that in order to determine if everything is OK, you start the generator and turn off all electric devices you have, and try to run the A/C all by itself. If the A/C runs OK, then you can slowly start to add back other electrical devices until you have things running smoothly.

If this is not in an RV and is a portable generator, you will be hard pressed to continually run an A/C unit, as the wattage draw for A/C units are continuous and normally not suited for running off such a small sized generator effectively.

If this doens't help, please comment back with more info about the exact application and situation so I can provide you with more detailed troubleshooting.

Hope you find this Very Helpful and best regards!

You probably need to do a tune up. Change the spark plug, oil, air filter, and you may also need to add new fuel.

All generators need to be run once a month. All things from the tank to the and including the carb will get gummed up with dried out fuel. I have a whole house generator and a 5500 watt gen set on my motor home. I keep fresh fuel in the stand alone house generator in California in case of a bad earthquake. I drain the gas after every run and keep all vehicles full of fuel just in case. Run gen sets at least once a month or pay pay pay!!