geoffey
Well-Known Member
Need a little help here... I recently finished building a small control panel for a 240v 5500w heating element, and I keep blowing the SSR. It seems pretty clear that I have a short somewhere on the system, but I'm not exactly sure where to start with solving this problem.
So, as mentioned I have the control panel and it is pretty simple: a 40amp SSR with heat sink, Auber SYL-2352 PID, and the required 120v and 240v power for each. The power is switched at a separate contactor. Everything tested out ok when I ran a water only test. Then on brew day at one point during the boil my GFCI breaker tripped. When I restored power I discovered my SSR wouldn't work, I could only get full power out of it. So I ordered a couple replacements and put one in, again ran a water test and things worked fine. Then, again during my boil last night the same thing happens. This time I did notice that it was when I went to shift the kettle an inch or two to one side that the GFCI tripped and the SSR blew. So I shut everything down, and as quick as possible replaced the SSR AGAIN, but this third one never worked (I assume the short was there still and it just blew right out of the gate, but the GFCI didn't trip this third time so that's something to consider perhaps).
Clearly there is a problem somewhere, but it is a problem that only kills the SSR and the allows the 240v element to keep plugging away once I restore the GFCI. I'm not sure what causes this. I'm tempted to open up my element connection on the pot to check that, but it just seems that if there was a wiring problem there it would constantly cause my GFCI to trip.
Can anyone walk me through some troubleshooting here? I have a multi-meter, but I'm not sure exactly what to be looking for to find the cause of this.
So, as mentioned I have the control panel and it is pretty simple: a 40amp SSR with heat sink, Auber SYL-2352 PID, and the required 120v and 240v power for each. The power is switched at a separate contactor. Everything tested out ok when I ran a water only test. Then on brew day at one point during the boil my GFCI breaker tripped. When I restored power I discovered my SSR wouldn't work, I could only get full power out of it. So I ordered a couple replacements and put one in, again ran a water test and things worked fine. Then, again during my boil last night the same thing happens. This time I did notice that it was when I went to shift the kettle an inch or two to one side that the GFCI tripped and the SSR blew. So I shut everything down, and as quick as possible replaced the SSR AGAIN, but this third one never worked (I assume the short was there still and it just blew right out of the gate, but the GFCI didn't trip this third time so that's something to consider perhaps).
Clearly there is a problem somewhere, but it is a problem that only kills the SSR and the allows the 240v element to keep plugging away once I restore the GFCI. I'm not sure what causes this. I'm tempted to open up my element connection on the pot to check that, but it just seems that if there was a wiring problem there it would constantly cause my GFCI to trip.
Can anyone walk me through some troubleshooting here? I have a multi-meter, but I'm not sure exactly what to be looking for to find the cause of this.