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Hi Holo- MOV's and the like are worth considering, but they short when over volts, and even well fused I am reluctant to short out my V7-V8 winding! There are some commercial products for 35-100 dollars that have variable voltage and timing adjusts that throw a SPDT relay when sensing over...

Just an update on my experiences. Finally gave up trying to repair my rat urine damaged VR board. Did replace several relays and sockets on the seperate "buss" board with parts from Mouser. Found a helpful chap named Dennis at "ASAP" (www.partsfortechs.com) who supplied a simple but rugged...

Thanks for the info. In the Kohler Holo and I are working on, one of the relays is in fact set up to flash the coil with 12V, but perhaps more importantly, the others in the start up sequence are tied in with a "shut down relay" which will disable the Voltage regulator. Of course if the SDR...

Sure. Here's another lesson (for me), though odds are small it has anything to do with your "issues". When I initally checked the coils I measured inside the relay box, as I had the plastic covers off, to look for contact crud. The coils measured appropriately. BUT, when one (CC) still seemd...

I took apart each relay this weekend, carefully pulling the plastic covers (with board removed in shop)Several of the contacts had green copper oxidation which I sprayed with contact cleaner. Also, note the four are NOT identical. 3 are 12V D/C coils, but one "1CR" on my unit, is a high voltage...

Well, relays are pretty tough. I was talking about the stuff in the box with the meters and the reset switches. At one point, you mentioned "disconnecting" some of the "kill switches". Those might be part of the correct operating of the relays, i.e. the thermal time out switch for overcrank etc...

Holo, your set up is identical to mine except you have the seperate "SCR module" (The thing on the side with the red disc Varistor that looks like a capacitor.) So prob not worth the effort to upload the board pic. BTW the Electronics including the control mechanisms/overload resets are much...

Waross, you are correct, thanks for the clarification. The "book" has V9 disconnected from the VR board bus, presumably not needed for the Voltage reg function, but is in circuit as an armature. The "internal" wiring I mentioned really referred to the configuration of the 12 leads into that...

Hello from another new member prompted by this thread. I too am several weeks in to troubleshooting the exact same Kohler generator 15RMY62 prob from 70’s-early 80’s that came with the house I just moved into, worked OK for a year then started blowing reset switches, I have decent small...