View Full Version : parma economy controlers

04-28-2006, 04:59 PM
hi all, i have 4 parma econo controllers and 2 of them stick on, i took them apart and it seams that the mechanism that slides along the resister is hanging on the resister its self, if you loosen the resister and turn it a little each way it gets write, but as soon as i tighten it up, : snug " it out of alines its self again.
any sudjestions ?
thanks all.

04-30-2006, 09:58 PM
I have seen many wiper buttons that have sharp edges on them....maybe a mfr defect, but not worth blaming Parma for.

Use a nail file or piece of sandpaper to round the edges of the button so that a ramp is created at the leading/trailing edge of button as it wipes the resistor. No sharp edge/no hang-up.