Community Forums

StuartCaw · 11-18-2013, 05:16 PM

This past weekend we were camping with the ac running. On Sunday morning the ac started to quick cycle the compressor several times so we shut it down. When we got home and plugged it in to our house power the ac ran fine. Would this problem been caused by low voltage at the camp site? We were at the end of the sites. I did go out later and checked the pedestal eith my digital volt meter and it was fine but because I did not want to cause any more problems we left it off until we got home.

awwall · 11-18-2013, 05:23 PM

Have you ever considered a Power Monitor? Was the first thing I installed after buying my coach. Never leave home without it....

EMS-PT50C

RoamingGnome · 11-18-2013, 05:47 PM

My AC units would pop the circuit breaker when shore voltage got too low, confirming what the AC unit tech manual states. I never noticed the compressor cycling excessively. I installed a hardwired Progressive Industries power monitoring system with remote display a few months ago and expect to improve the longevity of the various 120vac powered system in the coach by doing so. I mounted the display on the front of my circuit breaker panel and wired the PMS after the shore/gen transfer switch behind the circuit breaker panel to protect power from both sources. The circuit breaker panel has a wood cabinet door that I can close to cover the bright LED display when I am not interested in seeing it flash.

StuartCaw · 11-18-2013, 06:02 PM

This is what I have https://images3.campingworld.com/Cam...000/58465n.jpg

vsheetz · 11-18-2013, 07:13 PM

Protect your RV with an EMS such as from progressive industries. Well worth the investment.

ImagineIF · 11-18-2013, 07:32 PM

Quote:

Originally Posted by StuartCaw

This is what I have https://images3.campingworld.com/Cam...000/58465n.jpg

This is a power management device. It could well have been the voltage was dipping below the 102V threshold. When this occurs the coach power is interupted. This would explain your AC units cycling. As KIX pointed out, cycling would have to be no more frequent than every two minutes. You may not have realized you lost power, other than the AC units cycling, if you have inverters that took over for everything else that was on at the time. If this was the case, this is one of the values of having a power management device.

KIX · 11-18-2013, 07:43 PM

The Surge Guard 34750 that you have has a built in delay of 128 seconds according to the specs. What this means is that should you lose power there is a delay of 128 secs. before power is passed into the coach. The reason for this is to prevent what you are experiencing (short cycling A/C compressor). So.....if the Surge Guard is working properly then you problem is elsewhere in your system. I would look first look at all connections inside your electrical distribution box. Re-tighten EVERYTHING. If you don't find an issue there then check all connections at the A/C j-box. I'm betting you have a loose connection that is causing the issue. Also, continued compressor short cycling will negatively impact compressor life. Hope this helps

StuartCaw · 11-18-2013, 07:52 PM

Thanks for the info, looks like I have a project this weekend. Beats working on honey do projects ( DW is talking about painting the bathroom and it never stops at one room)

KIX · 11-18-2013, 08:08 PM

Quote:

Originally Posted by StuartCaw

Thanks for the info, looks like I have a project this weekend. Beats working on honey do projects ( DW is talking about painting the bathroom and it never stops at one room)

Run, my friend, run