coffee machine is a Miele CVA 4066. Sent from Jeremy's IPhone. Sorry for typos and shorthand!
On Apr 16, 2013, at 12:46 PM, boB <[email protected]> wrote: > > I believe these problems are mainly due to the high frequency switching > content of the typical sinewave inverter > these days. > > I (and other manufacturers I'm sure) would be very interested to know which > appliances are susceptible to > this noise so that we can try to reduce these incompatibilities. I'm sure > we can't take care of 100% of > the incompatibilities but we can try to get closer. > > For instance, what kind of coffee maker was that, Jeremy ? > > boB > > > > On 4/16/2013 11:36 AM, Bruce Erickson wrote: >> I'm having a similar issue with a GRID-TIE inverter just now. SMA 5000US >> which, when it wakes up every morning, removes the date and time from the >> programming in the customers' Monitor brand kerosene heater. They have to >> re-enter it daily, which is annoying enough, but when they go out of town, >> they have to leave the inverter off to avoid coming home to a cold house. >> >> So far SMA has had us move the breaker as far as possible from the heater >> breaker, to no avail. They had no other suggestions. I used a Panamax >> plug-in power conditioner with 50 dB of EMI filtering on the heater outlet, >> which has reduced the frequency of the problem to once a day, when it wakes >> up, from a few times a day. Trying a different heater is out of the question >> due to cost, so I'm stumped as how to avoid an unhappy customer, unless the >> answer is experimenting with more robust power conditioners. >> >> Bruce Erickson >> Mendocino Solar Service >> PO Box 1252 >> Mendocino, CA 95460 >> 707-937-1701 >> 707-937-1741 fax >> [email protected] >> >> >> >> >> On Apr 16, 2013, at 11:12 AM, Dave Palumbo wrote: >> >>> Jeremy, >>> >>> << What to look for? >> >>> >>> Unfortunately, probably a different coffee maker. >>> I've gone through this with several different appliances over the years on >>> sine wave inverter output. Washing machines, refrigerators, dishwashers it >>> could be anything with electronics. Specific manufacturers typically cannot >>> be avoided in order to solve this issue. Year to year manufacturers may >>> change the design of their appliances, so blanket statements on what works >>> and what doesn't are unreliable. All appliances (excepting a few) are >>> designed to operate on utility power, not inverter power. Inverter power >>> (excepting Exeltech and possibly others) typically has more distortion than >>> utility power. Some appliances cannot tolerate the simulated inverter sine >>> wave power. I always council my inverter customers that I cannot guarantee >>> that all appliances with work flawlessly and that some may not work at all. >>> I advise off-grid clients to buy appliances where there is a liberal return >>> policy. >>> >>> David Palumbo >>> Independent Power LLC >>> 462 Solar Way Drive >>> Hyde Park, VT 05655 >>> www.independentpowerllc.com >>> Vermont Solar Partner >>> 25 Years Experience, (802) 888-7194 >>> >>> >>> >>> >>> -----Original Message----- >>> From: [email protected] >>> [mailto:[email protected]] On Behalf Of All Solar >>> Sent: Tuesday, April 16, 2013 12:47 PM >>> To: [email protected] >>> Subject: [RE-wrenches] Outback wave form >>> >>> Have a client with a new coffee maker that will not run from their new dual >>> outback setup. Has anyone heard of this lately. We have had no problems with >>> appliances and sine wave inverters. What to look for? > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [email protected] > > Change email address & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: [email protected] Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
