LeonardBez
- Oct 30, 2025
- 1
- Joined
- Oct 30, 2025
- Messages
- 1
Good Afternoon All,
I am assisting a client with a gemstone analyzer , unit was imported to South Africa. As we have a 220v electrical grid a stepdown is used to convert 220v to 110v. The unit consist of very few components , dimmer switch (125v/6a) , 110v transformer , fuse , led lamp (110v) , cooling fan (115v) and green 3v led to indicate power on unit.
The unit was mistakenly plugged into 220v directly , burned the transformer and dimmer switch.
Both damaged units was replaced.
Current Situation:
The dimmer switch only controls the fan speed of the cooling fan , while the 110V lamp turns on as soon as the unit is plugged in, and its brightness cannot be adjusted.
Thank you in advance for your help!
I am assisting a client with a gemstone analyzer , unit was imported to South Africa. As we have a 220v electrical grid a stepdown is used to convert 220v to 110v. The unit consist of very few components , dimmer switch (125v/6a) , 110v transformer , fuse , led lamp (110v) , cooling fan (115v) and green 3v led to indicate power on unit.
The unit was mistakenly plugged into 220v directly , burned the transformer and dimmer switch.
Both damaged units was replaced.
Current Situation:
The dimmer switch only controls the fan speed of the cooling fan , while the 110V lamp turns on as soon as the unit is plugged in, and its brightness cannot be adjusted.
- I've attached images of the unit for reference.
- Wires was marked beforehand and connected as marked (by 3rd party)
- Questions:
- Could the issue be related to how the dimmer switch is wired? At no stage is the lamp connected to switch , only to transformer.
- Is it possible that the new dimmer switch is incompatible with the lamp? All specs match 100%
- Are there any specific troubleshooting steps I should follow to diagnose the issue further?
Thank you in advance for your help!
