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Below is a link to an interesting article in P.S. magazine about the K-1 relay. https://halfmastpsmag.wordpress.com/2012/12/03/5-10-15-kw-tqg-contactor/...

No power. Mep-802a. Bad relay k1 After trying to find the reasons I wasn't able to get one of my MEP-802As to produce power reliably (other than from the 120V outlet) I finally traced it to a bad K1 power relay. None of the fault lights would come on, yet I could not get the actuator switch...

Amazon still lists this sender, but the arm on this fuel level sensor seems to be longer than what I have (MEP-802A, Libby, year 1994). Is this a good replacement or does the arm have to be modified? One of the two senders I have (I have two MEPs) seems to stay in the high resistance range when...

For those of you that need a quick replacement for a defective S1 switch, you may want to consider trying a similar one but not an exact version. Presently on ebay, there is a NOS switch for the MEP-805B that is listed which has 4 of the 5 functions of the MEP-802A S1 switch. A push button...

Source for Cannon Diagnostic connector Does anybody know a source for the Cannon Diagnostic connector?

i like the idea of the magnetic bowl to store the parts. I will tape a magnet to my plastic parts bin for the S1 switch.

Now I can wait for an S1 replacement to show up, as the need to have two working main switches if gone for now.

finding S1 screws when they fly away. Here is a suggestion (below) when looking for S1 AWOL springs. You may want to tape some powerful magnets to IROBOT's (as known as the Roomba) circumference and set it loose hunting.

Repairing the Wafers The top and bottom wafers are different in two ways. The bottom wafer is symmetrical (it does not matter how it is assembled), the top is not, and the parts are different, mainly the gears and the plastic shorting bar holders. When I opened the top wafer for the first...

refurbishing S1 A word of caution: reassembling these switches for the first time can be a nightmare without proper documentation and sufficient spare parts. It was very useful to have two S1 switches and use one for comparison. Later I will summarise some of the potential pitfalls I...

I have refurbished both MEP S1 switches so I can now proceed and wrap up the remaining work needed. Since at some later point in time I would like to add a remote start circuit for one of the MEPs, I began thinking of an alternative circuit that could integrate the S1 functions, without...

I know your pain. It took me forever to realize I was testing the wafer backwards until I saw the coupler for the shaft gear. I spent more time looking for flying springs than doing anything else. I am thinking of putting my refurbished S1 aside and proceed with the mods for a new remote...

No question the MEP community could benefit from another source of parts like S1, S6 etc, but you are dealing with sporadic market conditions. What is the surplus amount of switches that show up on flea-bay? Right now there are none, but there could be a bunch of them showing up when the MEP is...

........................................................................................................................................................................... I was thinking of your plum schnapps which I love very much. However while staying at the Air Hotel in Landstuhl during the...

refurbishing S1 Guyfang, you would have laughed your-know-what off had you seen me flinging springs all over the place trying to keep them in their slots. I spent more time on my knees looking for the buggers than assembling wafers. Boy are they fast. That was until I realized that the...

....there are a few obnoxious squirrels (that keep trying to get into the house) that I would like to get rid off..... ;) Turns out I could not use it. The resistive elements were too brittle and broke in pieces. I will use a pair of space heaters instead, and that will be around 3KW only...

Hi KLOPPK, thanks for the CR4 explanation. That makes sense. I am not surprised there are issues with the older MEP switches as the hardware used has the wrong mix of metals causing corrosion and the switches are not sealed from the environment. It would have been better if everything had...

The schematic has CR4 on pins 7, 1 (diode anode on 1) of S1. What is the function of this diode? CR4 routes the B+ to the Pre-Heat Relay in the START position, but why? Cold weather reasons?

I second what Guyfang just said in the previous posting. I took S6 apart and found many of the contacts to be very dirty. I am going to take S1 also apart and see if I can clean it, add some WD40, and use it until I get the upgraded switch. At least I have a replacement for the older version...

Getting the MEP ready for a 100% load test. I replaced S6 and added an MOV to pins 7,8 of the AC Voltage regulator to suppress any transients that may be generated during hard starts. The AC clamping voltage is about +,- 250V peak to peak. The fuse mod has already been done. So far the...