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hottub.pool_boy
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Post subject:  Posted: Mon Nov 26, 2007 9:34 pm |
Joined: Thu Oct 06, 2005 7:52 pm
Posts: 272
Location: connecticut
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You've done most all the troubleshooting I can think of. Sounds like a new IQ2020 box is needed. Sure there is no "SUN" icon on the upper right side where the temperature reads?
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Genuine HotSpring parts and Spaguard chemicals online
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Swine
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Post subject: Posted: Mon Nov 26, 2007 10:16 pm |
Joined: Sun Apr 03, 2005 12:50 am
Posts: 937
Location: SW Florida
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This is going to sound weird, but if the spa is equipped with an auxiliary control, unplug it.
It looks like a phone cord, and plugs into the IQ2020. One of the symptoms of failure will cause the spa not to heat.
If that doesn't fix it, flip a coin, could either be the IQ2020 or control head.
If it gets to that point, personally, I'd try plugging a new control head before replacing the IQ2020. Just much quicker, and no time loss if it's not the problem. You'll only burn a few minutes replacing the IQ2020, but if it turn out to be the control head, well, those are lost minutes.
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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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gwb72tii
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Post subject: might have found a solution Posted: Wed Dec 05, 2007 8:58 pm |
Joined: Wed Dec 05, 2007 8:41 pm
Posts: 1
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i own a 1999 landmark w/the iq2000 board
my hottub started tripping off after attaining the target temp (104*) for about 2 days, starting last year. We had the HotSprings tech guy come out late Sept this year to trouble shoot it, along with reading up on it on this board. He determined the control head board was defective, along with the ozinator being dead. He replaced both and left.
The problem I now had was the tub would not heat for more than 10 minutes without the heater tripping off. The problem was worse!
Well the next step was replacing the thermosisters, which did not work. The next step was to replace the circulation pump, which also did not cure the problem.
We then (we thought) isolated it to the thermodisc high temp limit switch that sits on top of the nofault heater, which is reset manually with the little red button. We replaced it, which again did not solve the problem. We even removed the thermodisc switch and shorted the connection, but the heater kept tripping off.
pretty frustrating.
I finally got ahold of a "senior" tech man, who said that some of the new style ozinators are emitting a RF signal that interferes with the main circuit board and causes the heater to trip offline!
I unplugged the ozinator, and viola!, the tub heated for a few hours and now is at 104* and operating normally.
The tech said to wrap the ozinator in aluminum foil to kill the RF signal, but I think I'll have them replace the one in the tub under warranty.
hope this helps.
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gwb
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