โJan-23-2021 03:15 PM
โFeb-10-2021 12:57 PM
โFeb-10-2021 12:40 PM
3 tons wrote:HadEnough wrote:
Problem came back.
Watched the external generator brown out to 90V. During a warm day yesterday after a couple hours running the air conditioning.
Was able to finally do a comprehensive test of everything since it stayed at 90 for a long time.
Confirmed the on board generator is functioning ok. Not perfect. Needs to be sped up. Itโs putting out 110/109 at 56hz. But the power is stable and working properly.
The wiring is not currently an issue from the external generator to the air conditioner.
The wiring inside the external generator isnโt an issue.
That leaves one and only one thing to be the problem.
The AVR inside the generator is misbehaving. Thatโs why itโs so intermittent. Itโs an electronics problem.
Replacing the AVR as soon as I can get one.
Not sure what a AVR is but Iโm glad youโre on top of it...However as I recall this malady occured when using either generator - is this not the case??
3 tons
โFeb-10-2021 12:37 PM
HadEnough wrote:
Problem came back.
Watched the external generator brown out to 90V. During a warm day yesterday after a couple hours running the air conditioning.
Was able to finally do a comprehensive test of everything since it stayed at 90 for a long time.
Confirmed the on board generator is functioning ok. Not perfect. Needs to be sped up. Itโs putting out 110/109 at 56hz. But the power is stable and working properly.
The wiring is not currently an issue from the external generator to the air conditioner.
The wiring inside the external generator isnโt an issue.
That leaves one and only one thing to be the problem.
The AVR inside the generator is misbehaving. Thatโs why itโs so intermittent. Itโs an electronics problem.
Replacing the AVR as soon as I can get one.
โFeb-10-2021 01:31 AM
โFeb-06-2021 02:11 PM
โFeb-04-2021 05:28 AM
HadEnough wrote:
Status report:
Since the problem is transitory, itโs going to take a long time to test. I got that plug in voltmeter from up thread. I also got a new multimeter for testing.
I tightened every single connection everywhere throughout the power system.
Immediately on startup of the generator for fine tuning, I saw 70 volts on the plug in meter as it cycled on and off about once a second.
No appliances at all were on except he battery charger, which is tiny and a default.
While it was cycling and not harming anything I checked some connections. Once the issue went away, I finally did what I had set out to do which was to adjust the generator speed to get perfect power. It was at 108 which is a little low. The frequency also was low. I moved it around but and ended up at 120v and 58.5Hz, under the load of the electric hot water heater. Good power. I couldnโt get exactly 60Hz without going above 120v so I stayed at those figures.
I havenโt seen the issue again yet, but have only used the microwave very briefly. It hasnโt been air conditioning weather in Florida lately. Ha ha.
Iโll update with new info in case anyone else has a problem like this.
โFeb-04-2021 04:47 AM
Bud
USAF Retired
Pace Arrow
โFeb-03-2021 11:57 PM
โFeb-03-2021 11:29 PM
โFeb-03-2021 11:20 PM
dougrainer wrote:time2roll wrote:
I find it odd to be the transfer switch since both the utility cord and on-board generator have the same issue.
Maybe start with isolating some circuits like setting the fridge and water heater to propane only.
You are not understanding a Transfer switch and also HOW the OP is doing his 120 power.
1. He states that his ONBOARD Gen is having the problem
2. He states his stand alone genset has the same problem
3. YES, his Stand alone uses the Shore power cord
4. BUT!!!!! His Stand Alone STILL uses the ATS relay with its contac points. The INPUT points are on BOTH sides of the relay. So, over the years he has probably pitted the points on Shore side and also on On Board Genset side. That is why I suggested he BYPASS the ATS and wire direct. That will determine very quickly what his problem is. Doug
โJan-26-2021 04:35 AM
time2roll wrote:
I find it odd to be the transfer switch since both the utility cord and on-board generator have the same issue.
Maybe start with isolating some circuits like setting the fridge and water heater to propane only.
โJan-25-2021 04:55 PM
โJan-25-2021 02:47 PM
enblethen wrote:
Most transfer switches only uses logic on the auxiliary power supply. The OP uses shore power to feed rig from portable gensets. Transfer switch logic would also not cause brown out type issue. only thing in transfer switch that could cause problem is contacts.
โJan-25-2021 02:46 PM
time2roll wrote:
I find it odd to be the transfer switch since both the utility cord and on-board generator have the same issue.
Maybe start with isolating some circuits like setting the fridge and water heater to propane only.