What is causing my contactors to break?

Spa: 1993? Great lakes spa 5 person
230v single 2 stage pump and blower
control: brett aqualine EM-100
Air push button
1 main pump 230v 2 speed
thermostate: knob on topside control, pushbuttons on topside control, knob on side of heater / controller
heater: 2" Stainless Flow Thru, 15" long

I have broken three contactors. The seem to shutter on and off while engaging. Then when i check them later the metal conductor on the contactor is broken off with the spring. Any ideas? What are some possibilities? Any info is very much appreciated. Thanks
Nick

Posted by on 2007-03-07 23:19:47. Grand Forks, ND (9243)

Low voltage or possibly some type of electrical interference. Putting a snubber across the coil may help.

Gary

Posted by on 2007-03-08 10:07:08. (9253)

Whats A snubber? Nick Posted by on 2007-03-08 12:10:38. Grand Forks, ND (9254)

Whats A snubber?
Nick

Posted by on 2007-03-08 12:10:38. Grand Forks, ND (9254)

R/C Network (combination of a resistor and a capacitor).

Posted by on 2007-03-08 12:27:36. (9255)

Thank you can you point me in the direction of where to find one and how/where to install it. Thanks
Nick

Posted by on 2007-03-08 12:43:18. Grand Forks, ND (9256)

Radio Shack is where I get mine, it does not come up much these days. There are several factors that will dictate what capacitor and resistor combination you need. I would search the net and see if any of spa sites sell them.

Posted by on 2007-03-08 18:22:13. (9261)