Originally Posted by
Jon Wehrenberg
Bruce....are you talking amps or volts. Nobody can help you if we are not on the same page.
Also, how do you know the blower is what is making the amp meter? flicker back and forth?
One alternator, with two equalizers tells me you may have a 24 volt coach. (I'm talking house here because all our coaches are 24 volt). So what you are calling an amp meter, could it be a volt meter? If so 29 volts is pushing the high side of the range. That suggests to me, if I am able to interpret what you are saying that your alternator could be a problem, but I would not rule out the regulator. In fact if it is voltage and not amps I would monitor voltage very closely. If the regulator or alternator should fail such that you have excess voltage it can have a serious damaging effect on a lot of your devices. An intermittant or occasional glitch is difficult if not impossible to trouble shoot. The pulsing you describe may be the voltage varying and the blower motor reacting to the change in input voltage.
If the voltage gets excessively high (29 volts is at the absolute upper limit from my perspective) I would recommend disabling the alternator. Either disconnect the field wire from the regulator or remove the belt if it does not drive something else.
You can easily check the equalizers and put your mind at ease.
Connect your voltmeter (multi-tester) black lead to a ground (on the equalizer is OK), and read the volts at the 24 volt post and the 12 volt post on the bottom of the equalizer. The equalizer is OK if the 12 volt post is 1/2 of the voltage at the 24 volt post, +/- 1/2 volt.