GE Multilin MIF Relay Failure

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colintonybone Active Contributor Join Date: Jan 2010 Posts: 12	GE Multilin MIF Relay Failure 06/11/2014 5:53 PM
	MIF relays 10 years old. Multiple failures... 2 failure modes... 1 - all LEDs illuminated... 2 - ready led not illuminated Suspect power supply failure.. Does anyone have experience of these failures ? Thanks in advance... Colintonybone
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RAMConsult Guru Join Date: May 2007 Location: NYC metropolitan area. Posts: 3230 Good Answers: 444	#1 Re: GE Multilin MIF Relay Failure 06/11/2014 11:14 PM
	Can you reset the unit? Have you tried communicating with it via the serial port (this relay is showing its age) to check its configuration? If the microprocessor is still microprocessing then you might try flashing the memory. When all else fails then it's time to call GE (something that you should have tried before posting here). Let us know what you find out. __________________ “Tell me and I forget. Teach me and I remember. Involve me and I learn.” Ben Franklin.
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colintonybone Active Contributor Join Date: Jan 2010 Posts: 12	#3 In reply to #1 Re: GE Multilin MIF Relay Failure 06/20/2014 4:20 PM
	Appreciate your advice. Tried software communication before posting. No Coms. No local reset. Unit suicide seems to have been caused by power down power up during outage work. 4 units in total dead. Ordered new ones. Also had a couple of old ones repaired by Fletcher Moorland in Stoke on Trent. Reports sketchy, probably intentionally so I can't repair myself, but suggest change out of electrolytic capacitors on the power supply. Colintonybone.
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colintonybone Active Contributor Join Date: Jan 2010 Posts: 12	#4 In reply to #1 Re: GE Multilin MIF Relay Failure 06/20/2014 4:26 PM
	Another observation... I have been loaned a MIF II relay. ( my new ordered relays will all be this type ) Although I have original MIF Setpoint file, the MIF II will not accept it, so it had to be programmed manually. I'm not sure if EnterVista software offers a conversion function but will look at this further. Colintonybone
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engilis Power-User Join Date: Mar 2010 Posts: 105	#2 Re: GE Multilin MIF Relay Failure 06/13/2014 4:24 PM
	Change it with SEL. They are most reliable and user friend relays. __________________ Either exist as you are or be as you look. Rumi
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