From: ganthony@gmail.org   
      
   On 4/29/2024 9:19 AM, Ted Heise wrote:   
   > In the way of an update regarding the issues I posted about a   
   > month ago...   
   >   
   >   
   > On Wed, 27 Mar 2024 17:29:30 -0000 (UTC),   
   >    Ted Heise  wrote:   
   >   
   >>   1) The trailer has a Truma Combi Eco Plus furnace/water heater.   
   >>      It threw off error messages a couple of times.  First was   
   >>      said to be from blocked intake our outflow (found no   
   >>      blockage) and second suggested there was a fault with the   
   >>      combustion air motor.  On top of that, I noticed a   
   >>      hot/burning wire/electronics smell at one point.  After a   
   >>      lot of googling, I worked off the motor cover and gave it a   
   >>      spin with my fingers.  After replacing the cover, the unit   
   >>      seemed to work fine.   
   >>   
   >>      I'm a little leery about this one, not wanting to get stuck   
   >>      without heat when we're out some freezing night.  My plan is   
   >>      to call the dealer and discuss it with them.  I'm not sure   
   >>      it's worth dragging the trailer to them (almost 2 hours each   
   >>      way), unless they feel strongly they should look at it.  At   
   >>      the least, I'll get it on the record with them.   
   >   
   > After reporting an additional bout of errors (when trying to start   
   > it up on the 12 V battery while in storage) to the dealer, they   
   > told me I should bring it in.  They ended up replacing the   
   > combustion fan motor and the control board, all under warranty.   
   >   
   >   
   >>   2) I'm suspicious of the battery (Interstate SRM-24).  It was   
   >>      dead after just 5-6 weeks in storage (fully disconnected).   
   >>      After conditioning and charging, it seemed fine--but after   
   >>      just a day on electric heating it was dead again.  The   
   >>      refrigerator was on propane so there shouldn't have been a   
   >>      lot else drawing from the battery.  Am I expecting too much?   
   >   
   > I'm still not sold on this battery, but the dealer thought it was   
   > (and should be) okay.  On the other hand, it was at 84% when I   
   > picked up the trailer on Saturday, and down to 70% after a couple   
   > of hours towing--with the 7-pin connected.  I checked the output   
   > at the towing vehicle, and it read ~14 V.  Not sure what to think   
   > about this matter.   
   >   
      
   I may have missed it but did you check the specific gravity of each   
   cell? Check the voltage at the trailer battery (while connected to tow   
   vehicle with the engine running. Also, be sure you have good ground   
   connections.   
      
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