vne147
Member
Hello everyone. I was hoping I could solicit some help in fixing a vacuum sealer I have which recently crapped out. The vacuum sealer is the Tilia Foodsaver professional II pictured here:
View attachment 66564 View attachment 66565
When the vacuum sealer is working properly, the user presses the vacuum button which kicks off the following sequence. First, an electric motor drives a set of latches closed which hold down the lid. Next, an electrically driven vacuum pump sucks out the air. Then, a heat sealer strip melts the end of the bag to create the seal. Last, the same electric motor re-opens the latches.
When the vacuum sealer failed, the latches were stuck closed. It is because of that I believe the problem has to do with the electric motor that drives the latches.
I took apart the vacuum sealer and located the motor which drives the latches. It is a single phase (I assume because there were only 2 wires going to it) 115 VAC synchronous motor. When the vacuum sealer first gets powered on, it attempts to drive the latches. I can tell because the motor vibrates and hums indicating that it’s receiving power. However, it does not turn. After about 5 seconds or so the command times out and the vacuum sealer stops trying to drive the motor.
I removed and disassembled the motor. All the gears inside looked good, I measured about 500 ohm across the windings, and when I applied 115 VAC to it, it would spin as long as I started it moving by hand first. Since the motor did run when I started it spinning by hand first, I’m thinking that the problem has to do with the start circuitry.
Looking at the control board there is a large capacitor wired is series with the motor windings. It is shown here:
View attachment 66566
I looked it up and it is an interference suppression film type capacitor. Here is the data sheet:
View attachment 66567
So my questions:
1. Is that capacitor the start capacitor?
2. Does anyone think that’s the most likely culprit based on my description?
3. Is there anything else I should check or test?
Thanks in advance for any help you might be able to provide and please let me know if I can provide anymore info.
View attachment 66564 View attachment 66565
When the vacuum sealer is working properly, the user presses the vacuum button which kicks off the following sequence. First, an electric motor drives a set of latches closed which hold down the lid. Next, an electrically driven vacuum pump sucks out the air. Then, a heat sealer strip melts the end of the bag to create the seal. Last, the same electric motor re-opens the latches.
When the vacuum sealer failed, the latches were stuck closed. It is because of that I believe the problem has to do with the electric motor that drives the latches.
I took apart the vacuum sealer and located the motor which drives the latches. It is a single phase (I assume because there were only 2 wires going to it) 115 VAC synchronous motor. When the vacuum sealer first gets powered on, it attempts to drive the latches. I can tell because the motor vibrates and hums indicating that it’s receiving power. However, it does not turn. After about 5 seconds or so the command times out and the vacuum sealer stops trying to drive the motor.
I removed and disassembled the motor. All the gears inside looked good, I measured about 500 ohm across the windings, and when I applied 115 VAC to it, it would spin as long as I started it moving by hand first. Since the motor did run when I started it spinning by hand first, I’m thinking that the problem has to do with the start circuitry.
Looking at the control board there is a large capacitor wired is series with the motor windings. It is shown here:
View attachment 66566
I looked it up and it is an interference suppression film type capacitor. Here is the data sheet:
View attachment 66567
So my questions:
1. Is that capacitor the start capacitor?
2. Does anyone think that’s the most likely culprit based on my description?
3. Is there anything else I should check or test?
Thanks in advance for any help you might be able to provide and please let me know if I can provide anymore info.