House battery voltages not getting to generator?

[Cannon]

I just recently purchased a 2005 Winnebago Aspect 26A with only 6,800 miles. I went to start the the generator and it would not crank. A quick check of the battery voltage at the positive terminal at the generator showed only 2 volts. Thinking that the house batteries had been drained, I hooked up a battery charger to them, only to discover that they both had a full charge. All the cables and connections were in perfect shape. I then operated the house battery switch near the door and got no change. Does anyone know if there is a relay that might be the culprit? I would like to know where to start looking for the problem, especially if this is a weak spot on this particular RV.

Thanks,
Cannon
Holzworth55@gmail.com

[Libero]

Under what condition did you measure 2V at the gen starter cct? I.e.: did you have the start button depressed? You need the nominal 12v at the gen for it to engage the starter solonoid.

Did you hear the starter relay/solonoid click when the starter switch was activated?

What did you measure across the batteries? You noted they were charged, but what was the measured voltage?

You said you checked ALL connections. Does include the connections on relays and solonoids?

Do you have a house shematic diagram? If yes, trace the wire from the batteries to the starter circuit.

Is your salesman switch in the circuit that shuts off voltage to the starter?

Good luck

[tompen]

If you have an emergency start button on the dash (usually used to supply house power to the chassis battery) you could hold the button in and try the generator. The relay controlled by the emergency switch will combine the batteries. If it starts, than the problem is between the generator and the house batteries.