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the_hawk_ca
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Post subject: Blown Relays--Tiger River Bengal  Posted: Thu Dec 20, 2007 2:22 am |
Joined: Thu Dec 20, 2007 1:53 am
Posts: 5
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Hi,
I need some advice on what may be causing blown relays on my heater control board. Some quick background--I purchased the spa new in October 2002. It has always been wired and jumped for 240V off of a subpanel with a 30A & 20A breaker.
Recently, I moved to a new home, hooked it up the same way and it worked for about a month, then relay #1 blew. (See picture, relay #1.) I replaced the relay, then relay #3 blew.
Is the board just old and need to be replaced? Should I just keep replacing the relays? I think it is the IQ2020 board.
OR, is there something else that could be causing the problem?
I've read some posts that infer this is a common problem and all I need is to replace the board. I'd hate to replace the board and have the relays blow again...
Thank you for your help!
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File comment: Spa Heater Control Board
Spa 1.JPG [ 104.23 KB | Viewed 216 times ]
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Swine
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Post subject: Posted: Thu Dec 20, 2007 9:06 am |
Joined: Sun Apr 03, 2005 12:50 am
Posts: 935
Location: SW Florida
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There wasn't enough solder on the traces. A New heater PCB uses more, and fixed the issue
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t'was a woman that drove me to drink, and I've never had the courtesy to thank her
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the_hawk_ca
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Post subject: Posted: Thu Dec 20, 2007 7:49 pm |
Joined: Thu Dec 20, 2007 1:53 am
Posts: 5
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Swine--Thanks for your help. I'll order a new one.
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charger_1
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Post subject: Posted: Mon Dec 24, 2007 5:37 am |
Joined: Fri Sep 03, 2004 12:27 am
Posts: 1153
Location: Albert Lea, MN
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...Or you can go the poor man's route... Replace the relays, and then solder heavy gauge wire pigtails from the relay posts to the terminals. Prolly last longer than even a new board.
Sad fact is none of today's on board relays are strong enough to handle the high inductive resistance from a heater, long term. The ideal solution is to add a mercury wetted contactor in place of the onboard relays....but that costs money.
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Please be patient for replies
ATTENTION! USE THE ADVISE ON THIS FORUM WISELY! WE ARE NOT LIABLE FOR INJURIES, DEATH, DAMAGE, ETC. ARISING FROM THE USE OF THE INFORMATION IN THIS FORUM!
NOTE: I can't guarentee knowledge of all spas.
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Swine
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Post subject: Posted: Mon Dec 24, 2007 7:20 am |
Joined: Sun Apr 03, 2005 12:50 am
Posts: 935
Location: SW Florida
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charger_1 wrote: ...Or you can go the poor man's route... Replace the relays, and then solder heavy gauge wire pigtails from the relay posts to the terminals. Prolly last longer than even a new board.
Sad fact is none of today's on board relays are strong enough to handle the high inductive resistance from a heater, long term. The ideal solution is to add a mercury wetted contactor in place of the onboard relays....but that costs money.
crude, but effective 
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t'was a woman that drove me to drink, and I've never had the courtesy to thank her
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the_hawk_ca
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Post subject: Posted: Sat Dec 29, 2007 12:20 am |
Joined: Thu Dec 20, 2007 1:53 am
Posts: 5
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Since I haven't had a chance to order the new board, I'll try the pigtail route to see if this works...
Any idea on where I can buy 1 relay? Omron #G8P-1C4P-V-DC18
Thanks guys.
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tedp
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Post subject: Posted: Tue Jan 08, 2008 6:12 pm |
Joined: Tue Jan 08, 2008 6:01 pm
Posts: 1
Location: Vanouver,Washington
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I'm having the same problems on my Caldera Spa I've had for four years. Last year K-1 blew and I was able to find the 12 volt replacement, but this year K-3 blew and I can't find the 18 volt coil voltage version of this relay anywhere. HAWK_ have you been able to find this part?
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triplx
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the_hawk_ca
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Post subject: Posted: Tue Jan 08, 2008 8:39 pm |
Joined: Thu Dec 20, 2007 1:53 am
Posts: 5
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Ted,
I've found them, had to buy a few--I do have one or two extra. If you get me you info, I'll send you one. The part # is Omron #G8P-1C4P-V-DC18
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opie167
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Post subject: Posted: Thu Jan 10, 2008 9:51 am |
Joined: Thu Jan 10, 2008 9:36 am
Posts: 1
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Posted: Tue Jan 08, 2008 8:39 pm Post subject:
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Hawk,
I am also in need of these relays (Omron #G8P-1C4P-V-DC18) , one for sure, possibly two. Still have any available? or at least where else I can find them.
My Hot Springs Spa heated up traces also. (Darn INVENSYS CONTROL product)
Thanks
" I've found them, had to buy a few--I do have one or two extra. If you get me you info, I'll send you one. The part # is Omron #G8P-1C4P-V-DC18 "
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OP
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Mattack
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Post subject: Posted: Sun Jan 13, 2008 6:04 pm |
Joined: Sun Jan 13, 2008 6:01 pm
Posts: 8
Location: Rochester Hills
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Looks like I am having the SAME problem.
My black and white wires were getting really hot and the casing on the wire actually cracked.
I checked volts from the leads to the ground and I have 115v on the white side and I have 0v on the black side.
I would love to just replace the relay rather than the whole board if thats possible. Thanks in advance!
Matt
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