Progressive EMS-HW50C unit
We have Porgressive EMS-HW50C about 1.5 years old and hardwired at the dealership into our new camper. Yesterday about 1:00 a.m. we heard this loud tapping noise. We thought we had a large rat in ou...
Forum Discussion
ktmrfs wrote:
And you mentioned your experience with the honda generator. In my case my unit has the bypass switch. turning the switch to the bypass position with the generator has no effect on the chatter, it chatters in either case, so even if you had the switch it wouldn't have solved the problem.
Can't say as I never tried it ... with my EU2000i as source power the EMS began to chatter as soon as I dialed up the A/C thermostat to the point where it's compressor kicked on ... in fact the chattering was so dramatic I really wouldn't want to repeat this test just so I could prove your theory about the EMS bypass function. Voltage being outputted from the EMS dropped so badly as the EMS chattered that the lights dimmed and flickered so noticeably that I didn't have the presence of mind to note the EMS voltage reading but simply dialed the thermo back again as quickly as I could to stop what was obviously a "bad event". Running the A/C on fan only of course was fine so I disconnected, unplugged the EMS from the system entirely (which I could easily do because I had installed it using standard 30 amp RV connectors) then repeated the test and the A/C compressor ramped up to speed just fine with no dramatics. How one could allow an EMS to continue to chatter "on and off for a couple of hours" as the OP apparently did is beyond me as it's pretty obvious from the chattering that something just isn't right. :h
