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HDBiker Dave · 10-17-2012, 07:03 PM

I started having issues when plugging in my electrical cable to an outside power supply at my house (The power supply from the house is fine), I heard a clicking sound coming from the gray box in the MH power supply cord compartment when I wiggled the power cord connection between the MH power cord, adapter and the extension cord from the house, I believe the 50 amp to 15 amp adapter had a loose connection so I replaced it with my 50 amp to 30 amp to 15 amp adapters but things still don't seem right. When plugged into the house power supply the 120 volt microwave and coffee maker both work fine. One thing I now notice that just started happening is that the control panel up front isn't working correctly, it will not allow me to change the incoming power supply ampage setting and it shows a low battery which I don't believe is the case because the 4 house batteries are new, any suggestions would be helpful.

Shadowcatche · 10-17-2012, 08:11 PM

What is the voltage and what is the resistance/continuity?

A VOM is your friend, and you can diagnose a great number of electrical problems in both the 120V AC and 12V DC systems. Using a clamp meter you can measure amps as well as voltage. A clamp meter that will also read DC is of particular valu to RV's.

"007" · 10-18-2012, 04:12 AM

If you plug in a different lower power source don't the settings change on the control of your inverter.
Here is a thread that may help.

HDBiker Dave · 10-18-2012, 06:17 PM

I don't think so, it is plugged into a 15 amp supply and the control is reading 30.

desertranger · 10-18-2012, 06:43 PM

Quote:

Originally Posted by Shadowcatche

What is the voltage and what is the resistance/continuity?

A VOM is your friend, and you can diagnose a great number of electrical problems in both the 120V AC and 12V DC systems. Using a clamp meter you can measure amps as well as voltage. A clamp meter that will also read DC is of particular valu to RV's.

A VOM? Is it a Simpson 260. I still have one of those.

Shadow's been in electricity for a long time.

I would check for loose connections. From what you say it sounds like you have an intermittent problem. Those can be very difficult to find. The first step is to disconnect from all AC electrical or zero volts are in the system. Opewn up the shore power cdanle and make sure every screw in that compartment is tight.

wonderer1 · 10-18-2012, 08:33 PM

as a side note. every line voltage (120/240) panel (including your home) needs to be serviced from time to time. the wires heat up and cool down backing off the screws. and can cause problems. it's no big problem if you don't like electricity turn off the breaker when you tighten the screws.

GaryKD · 10-19-2012, 04:45 PM

Hi HDBiker Dave,
If the coach works fine on 50 AMP shore power and does work quite right on 15 AMP shore power, do nothing. My coach does not like 20 AMP or below shore power. If 15 AMP is all you have, be careful what you turn on and and understand the coach may do some weird things.

chuckinthebus · 10-19-2012, 05:05 PM

Help me out if my math doesn't sound right.

You are trying to power your 50amp 2pole motor home going through a 30amp adapter to a 15amp adapter and supplying your coach with 7.5 amps +/- to each 50amp pole and are experiencing strange happenings? Not sure your panel will recognize anything that low, but I am probably wrong.Is this something you have done before without issue?

HDBiker Dave · 10-19-2012, 06:27 PM

Quote:

Originally Posted by cnkinthebus

Help me out if my math doesn't sound right.

You are trying to power your 50amp 2pole motor home going through a 30amp adapter to a 15amp adapter and supplying your coach with 7.5 amps +/- to each 50amp pole and are experiencing strange happenings? Not sure your panel will recognize anything that low, but I am probably wrong.Is this something you have done before without issue?

I think you misunderstood, I am simply plugging the MH cable into a standard 15 amp power outlet at my home, the MH cable has a 50 amp cable end so in order to plug it into the outlet you need to use an adapter from 50 amps to 15 amps or from 50 amps to 30 amps to 15 amps. The panel has settings from 15 amps and up.

HDBiker Dave · 10-19-2012, 06:40 PM

Quote:

Originally Posted by GaryKD

Hi HDBiker Dave,
If the coach works fine on 50 AMP shore power and does work quite right on 15 AMP shore power, do nothing. My coach does not like 20 AMP or below shore power. If 15 AMP is all you have, be careful what you turn on and and understand the coach may do some weird things.

I don't have a 50 amp power supply to try at my home, I have always plugged into a 15 amp outlet at home and never had a problem. For the last little while when I plugged into the power supply at home I've noticed a sound coming from the electric storage cord compartment, I notice there is a gray electrical box in that compartment so I'll take the cover off and see how things look. BTW when the MH is plugged in everything seems to be working ok but the control panel is not workng correctly.

"007" · 10-19-2012, 08:21 PM

Dave the noise you hear is coming from the relays in your transfer switch.
You may have some dirty contacts on one of them trying to close the contact.
There may also be metal filings on magnetic pole of relay that needs to be cleaned out.
With the power off you can run a dollar bill paper through contacts to clean and use a thin firmer cardboard to clean out filings or if you have a high pressure air hose blow them out by operating the relay with fingers.
Be careful of the circuit board and not cross anything across board which may have a charge internally.
Check all wiring connections in box for tight screws and good contact especially stranded wires.

HDBiker Dave · 10-20-2012, 03:05 PM

Well I finally got the time to investigate my electrical problem, turns out my problem is the Heart Remote unit that is mounted in the upper cabinet when you enter the MH. When I removed it from the console all of the lights went off, I unplugged it and had a look inside but everything looked fine, I plugged it back in and shutdown the power and turned it back on, all of the light on the remote came on and stayed on. When I finish with this mesage I'll go online and see where I can get a new or reconditioned one. If you have any comments or suggestions please let me know what they are. Thanks for messages received up to this point.