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Is There a Problem with Your Progressive 50 Amp Surge Protector??

Posted 09-07-2011 at 07:45 PM by SUMDALUS

"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 defective I can send it back. Just curious as to what you all thoughts would be. Thanks,"

In response to the above post, I responded with:

I assume you have the EMS-PT50C model and not the SSP-50.

The portable EMS unit has a built-in 136 second (2 minutes, 16 seconds) time delay. This delay period starts when the unit is plugged into the pedestal and the pedestal's circuit breaker is turned "ON" (As soon as it receives power, it starts working.)

During the time delay period, you will also see a small blinking 'dot' in the lower right hand corner of the display window. This dot blinks once a second. When the time delay is done, it stops (disappears) and you will hear a "clunk" sound - the internal switch closing.

The unit will start displaying its read-out almost instantly. On the PT-50, there are 8 scrolling lines (each line is displayed for 2 seconds - that's so we can read it - actual monitoring occurs in terms of nanoseconds):

L-1 (Line One - usually the incoming Black Wire)
Voltage (Usually 3 digits - you'd like to see at least 112 volts - it opens the switch on low voltage at 104, and hi voltage at 132)
Amp Draw (During the time delay period you will see "0 A" - zero amps)
L-2 (Line Two - usually the incoming Red Wire)
Voltage (same as above)
Amp Draw (same as above)
Frequency (AKA Cycles. You will usually see "60 H" in the US - Hertz means cycles)
Error Code (You should see "E 0' - zero errors." If you do, the internal switch will close and allow power into the RV. If you see something else, you have an error and the switch will not close. Make note of the error code - it is important to know when you call Progressive Industries tech support (they WILL ask).

One thing in the EMS manual that is missed by most owners has to do with the unit's representation for an Open Neutral condition. You've done everything right, but the display does not light up. A blank display means that you have one of two problems - 1. No power at the post, or 2. An Open Neutral condition has been discovered. Trust the box and assume the worst - open neutral. Move to another site - preferably on another electrical "leg" in the park. (Note: There is no Error Code for Open Neutral. To display error codes, the unit needs power. An open neutral is bad enough that the unit shuts itself down to protect itself - hence no display.)

More information about Progressive Industries' Electrical Management System with Smart Surge (EMS) can be found HERE.

Hope this helps.
__________________
Dale Lee Sumner
RVIA Master Certified RV Service Technician
Mobile RV Medic, Inc.
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