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PostPosted: Wed Aug 12, 2009 5:51 pm
by cfvabch
ENMON II - H1 not showing any reading
> Is my ENMOM kaput ?
> QUESTION 1. My ENMON II - H1 digital readout went blank. In Jan ?97 I
> installed the ENMON II, Next Step Regulator, an Eliminator, shunt and
> Alternator Ammeter and Trace 1.5 KW Charger/Inverter (although I never
> hooked up the Inverter) on my Catalina 30 Sailboat. Everything has
> worked really well since then until last week when the ENMON went blank.
> The Trace Charger seems to be working fine, because the House and Starter
> AGM Batteries measured 12.83v and 12.84v with my Fluke 83 Digital
> Voltmeter. The Installation and Operating Manual General Troubleshooting
> Steps (pg. 31, Para 8.2) requires measuring all the voltages between GND
> (TB1-10) and all the other pins on TB1. I miss read the instructions and
> below are the pin voltage measurements between TB1-16 and all the
> remaining pins. Since both TB1-10 and TB1-16 are wired separately and
> directly to the 3/8? NEG distribution post, I expect the pin readings are
> still valid. Is that correct??
> PIN voltages between TB1-16 and remaining PINS:
> TB1-15 0
> TB1-14 0
> TB1-13 12.78v
> TB1-12 0
> TB1-11 12.78v
> TB1-10 3.5mv
> TB1-9 3.6mv
> TB1-8 0
> TB1-7 12.84v
> TB1-6 1.318v
> TB1-5 .459v
> TB1-4 .401v
> TB1-3 12.84v
> TB1-2 299.7mv
> TB1-1 350.1mv
> We have had a lot of severe electrical storms lately here in Virginia
> Beach, VA. But, all the electronics in the boat, VHF radio,
> Chartplotter, Steering Auto Pilot and even the solid state controls for
> the Cruisaire Heat Pump are all working fine. Do I need to replace the
> ENMON???


PostPosted: Fri Aug 14, 2009 2:56 pm
by Coulomb
It looks like it will need to be repaired.

Some products can be repaired, but that can only be determined after inspect and test. Inspection costs $75.00. Repair is billed at time and material. Time to repair is billed at $125.00 per hour.

Send products for repair to:

Ample Power Company, LLC.
6315 Seaview Avenue, NW
Seattle, WA 98107

Include name, address, purchase information and contact phone or email.


PostPosted: Fri Aug 14, 2009 6:00 pm
by cfvabch
I will remove it soon and ship it to you. I read in this section or somewhere else that I should leave the ENMON connected to the TB1-10 when shipped to you. I will do that. Thanks, Charlie


PostPosted: Tue Aug 18, 2009 7:42 am
by cfvabch
Not sure what happened, especially since I was getting voltage readings at the TB1. However before disconnecting it to send it in, I pulled the TB1-11 fuse and decided to check it one more time. I took it out into bright sunlight and very very closely inspected the very thin wire in that 3A fuse --- it had a very tiny discontinuity. I snapped in a new fuse -having days ago polished the fuse holder--- and WALLAH---digits popped up and my ENMON WORKS FINE. Thanks for the help.


PostPosted: Thu Aug 20, 2009 7:58 pm
by Coulomb
That's a good lesson. Many issues are caused by faulty connections. Mechanical stuff is a lot less reliable than electronic circuits.