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Smoke unit stopped working. Attached Multi meter to the JST connection on the MB. Reads 7.9 when unit is turned off, and 6.63 when the unit is turned on. Confirmed this twice. I find this Odd. Also, the polarity is reversed....as defined by all JST color orientation. I find this extremely odd.. Has anyone else taken readings? The motor works fine when hooked straight to a battery, going through the tiny circuit board. All other tank functions work on the V3 Motherboard. No burnt traces on the motherboard. The heater coil which bypasses the tiny circuit board, doesn't work either.
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What cell was used with those reading? I am not sure about the polarity, but I attached a pix when I still had the smoker in my Taigen. The truth is Taigen powers the smoker port once the tank is started, they simply hard-coded some mixes to use the toggle for ON/OFF, that was so annoying for me when I switched to a hobby-grade Tx, the smoker was constantly running and I had to put in a separate ON/OFF before removing the units finally.
Is the non-op smoker a modded one? Did you check if the coil side didn't have a short since unlike the current HL, Taigen splices both motor + element and uses a single port. -
2 cell LiPo was used to power tank. Your comments concur with what I saw. Indeed, your correct: Tigen splices both the heating coil and pump motor into one connection. As I pointed out in another thread, the Taigen smoke unit employs a tiny chip board that takes the voltage directly from the single MFU port, and splits it. The heating coil gets the full voltage from the MFU, very close to the Batt voltage that my multi meter was telling me. The chip somehow controls the pump motor....not the coil. The picture below illustrates. If what I saw is true, then the heating coil would always be on as soon as you turned the power switch on the tank... I wish someone who had a stock Taigen setup would confirm my readings. or better yet, disprove them. Logic would AND should suggest, the Smoke port on the motherboard SHOULD NOT BE HOT until the switch is flipped on the transmitter. My guess is the coil should get full batt voltage, and for some reason the chip board is nothing more than a resistor to limit the voltage to the pump motor. I wish I knew more about electronics, but I don't. Obviously I FUBAR'd it, but I am trying to figure out if I need to buy a simple smoke pump, or a new V3 mother board...or both. The Taigen "Help desk" is as useless as tits on a bore hog, who won't return an email if their life depended on it. I will never buy another Taigen tank from them again. I get 150% better customer service from China, in China for God's sake. Anyway, I ripped out the pump assembly, and the pump motor works flawless. I took a JST plug and soldered it to the motor, plugged it in to the MFU by itself, nothing...not with the smoke switch turned on, or off......yet my multi meter tells me I have voltage coming from it...albiet reversed polarity. I sent Torro an email describing the problem, hope they can help. I love a smoking tank..when the need arises...I'm major bumed out. With nothing to lose, I am going to try and take a Henglong smoke unit, and add the tiny resistor chip board to it, and see what happens...probably nothing as I suspect something wonky is going on with the MFU, even though EVERYTHING else works flawless.
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Zipper, just give Taigen (Erik and his team) a bit of time, I notice they are rather backed up on Mon due to the weekend, but they do catch up with emails. What you described is certainly weird, I can't speak to the voltage differential between on/off for the smoke toggle and that's not something I can easily meter cause I don't readily have the stock Tx, but you indicated that you see voltage from the smoke port off the MFU, did you also meter at the input of the mini voltage regulator atop the smoker assembly?Comment
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The input voltage to the "mini regulator" would be the same as it comes straight from the smoke port-7.9 when the unit is turned off, and 6.63 when the unit is turned on. I did not however measure the voltage AFTER it passes through the regulator to the pump motor. Good call, I need to do that. I wish Eric was the one who does the Tech help. He is not. I was told that. Here was my "conversation" today....notice the time stamp:- Smoke unit stopped working, Order # TG16390
12:21 PM - One minute it was working fine, next minute, nothing
12:21 PM - No oil added, not flooded.
12:22 PM - How do I tell if its the Smoke unit, or the MFU?
12:22 PM · Viewed 
Hi Kenneth,
Did it physically stop working or did the smoke output stop working and the motor is physically still moving? It is hard to diagnose anything with a "it doesn't work" sent to us first. Anything you can provide to help us help you is much appreciated.
Taigen · 12:37 PM · Appreciate- Please forgive. The motot "Pump" does not work
12:37 PM - *motor
12:38 PM - the heating coil does not get hot/warm either
12:38 PM - everything else on the tank seems to be working fine
12:38 PM - Voltage at the smoke unit JST reads 7.9 when unit is turned off, and 6.63 when unit is turned on. Also, the polarity is reversed. I find this odd.
1:13 PM - I appreciate the help. Thanx
2:53 PM · Sent
This is why I'll never do business with them again.
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- Smoke unit stopped working, Order # TG16390
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