"I have the portable Progressive 50 amp surge protector. The first time I used it three weeks ago it worked fine. We were just in MI and when I plugged it in I waited for it to read the circuit to give me the all clear. I then plugged in the coach and nothing. I unpluged the SP and just plugged in the coach to the shore power and I had full power. I chalked it up to where we were staying. On the way home we stayed at an RV park in WV and the same thing happened. It is brand new so if it is...

The RV refrigerator does not work like a house refrigerator. Yes, they both cool and freeze food, but their methods of operation are not the same. Here's one good example:

I had a customer call me one afternoon, insisting that his refrigerator was defrosting and wanted me to fix it. When I arrived at his RV, he showed me the water dripping from the fins. I proceeded to carefully make all of my usual checks on the refrigerator. Afterwards, I explained that his refrigerator was within...

© “Why is having a standard for upper and lower voltage levels so important?”

Let’s look at Minimum Voltage.

Explaining this requires a little different analogy than the one we used for Maximum Voltage. For this example, we will again equate it to something we all understand -- a temperate zone. Most of us like to live in a temperate zone -- a comfortable climate of 60 to 80 degrees Fahrenheit. When the outside temperature is above 80 degrees, many of us will start looking...

© “Why is having a standard for upper and lower voltage levels so important?”

Let’s look at Maximum Voltage.

To do so we’re going to equate it to something we all understand -- blood pressure. Looking at just the upper number, normal blood pressure is considered to be between 90 and 120. If the upper number is a little higher than normal (120-139), we can usually control it with diet (i.e. less salt). If the upper number is much higher than normal (140-159), we get a...

© Are you checking your currently available voltage level before turning on additional equipment? Do you need to???? YES!!!!

Here’s WHY:

The National Electrical Manufacturer’s Association (NEMA) has established the voltage Design Spec for electronic/electrical equipment sold in this country to be:

Maximum voltage - - 132 volts
Minimum voltage - - 104 volts

Here’s how they came up with those numbers:

Our optimal voltage standard...

© Open any textbook about electricity and you’ll find some rather daunting, traditional abbreviations and definitions similar to the following:

A – Amp. (Short for the word ampere.) A unit of electrical current.

AC – Alternating Current. An electric current that reverses direction in a circuit at regular intervals/cycles. (Electrical power produced by the power company, your generator, or your inverter is referred to as alternating current.)

DC – Direct...

© Whether your RV is wired for 30 or 50 amp service, the most dangerous thing you do while RVing is “Plug into the pedestal/post.” When it comes to wiring faults, the pedestal/post is the most susceptible location for unintended wiring errors to occur!

If an electrical problem exists at your “point of connection” to the electrical grid, this chart approximates the probability of occurrence (out of 100%):

.................................................. .......................Rally...

While some people consider error codes to be cryptic, they are really quite simple and you really don't need an expensive decoder ring. In fact, in the case of Progressive Industries, the codes have been silk-screened right on the lid of the unit for quite some time now.

Progressive Industries EMS Error Codes ©

E-0 -- Condition Normal (Zero Errors. This Is What You Want To See! And probably will most of the time)

For those occasions when something "strange"...

Electrical Protection for Your RV???

© YES, it is necessary and it does “exist”!! – And NO, RV OEMs typically don’t install it when the RV is built. (No “WOW” factor for the customer and no $$ profit for the RV manufacturer.) Third party, aftermarket sales and installation are your best bet for proper protection of your RV investment.

Listed below are the features of the “Electrical Management System with Smart Surge” (EMS for short). It is manufactured by Progressive...

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