Recent content by rite_accord

As I've posted, I have an 850LM and 78LM on a single door, and it works fine. As for multiple doors, the instructions for the 850LM indicate that yes, the three channels of the 850LM can be programmed and operated independently (although in my application, I've never attempted to do this)...

On my LM8500 (not LM8500W) (red enclosure, installed in early 2014), the door does open and close by just momentarily shorting the control wires. After my 888LM panel failed, I operated my door with a simple pushbutton switch (Liftmaster 041A4166) and an 850LM universal controller for the car...

Not sure about the "kit" being referred to here, but I think most here will agree that only about four or more years' worth of time on one of the revised 888LM's will show whether or not they have been "properly revised". I'll keep my own solution that doesn't include an 888LM (as described...

I've just installed a 78LM wall control (using it in conjunction with an 850LM universal receiver) to control both the 8500 opener and the associated 380LM light. This set up seems to work well, and allows turning on and off of the 380LM light independently of opening the door (the light does...

Dave, Thanks for the tip about the 78LM wall mounted control; I've been using an LM850 with a lighted push button (LM #041A4166) for a wall mounted control for months because like you, I decided I couldn't risk another 888 failure. With the lighted push button, there is no independent control...

The wall controllers seem to fail after 3 or 4 years of service. Only time will tell if the 2016/2017 date coded units have actually addressed the issue or not. Until the issue's proven fixed, I'm sticking with a relay-based universal remote receiver and an (LED lighted) doorbell switch on the...

Wasn't suggesting using a doorbell switch forever, just until they got the new 888LM since it sounded as though delivery may take a few days or more. From your previous post, it sounded like you preferred just disconnecting the opener, bolting the door, and not using the garage at all.

The manual that came with my 8500 (not 8500W) says "You may program up to 12 Security+2.0 remote controls, 2 Security+2.0 keyless entries and a combination of 16 MyQ accessories to the MyQ control panel." Be aware that the MyQ control panel is the 888LM control panel that seems to fail after...

I was concerned about the range, due to where I had to mount it - since it is not powered from the 8500 opener itself like the 888LM, but rather from an 85LM "wall-wart" (sold separately), it had to be fairly close to an AC outlet. I put the receiver a little bit under the opener itself...

Although I had already replaced my 4-year old failed 888LM control that came with my 8500, I was deeply concerned about another 888LM failure down the road (I was lucky to be home when my last failure occurred, but I might not be so lucky next time). I decided to take Brian's suggestion and...

Some follow-up questions: 1) You said that you replaced the capacitors - was that all 7, or just the 2 big 1F capacitors? 2) Using an LM317, I gather that it's only 20V output without a control panel connected; does a control panel still work on the load side of the LM317? I'm wondering if...

I went back and measured the voltage between the red and white terminals with a working 888LM control panel connected. Measured at the opener, the voltage under those conditions measured about 5.5V, with a little bit (<0.1V) of variation. This interface may well be a current mode interface...

I too measured 33V between the red and white wires without a control panel attached (I was in the process of replacing my 4-year old 888LM as well). It may be lower with a control panel attached, although I didn't measure the voltage with the control panel connected. I was also wondering if...