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Old 10-16-2020, 07:40 PM   #1
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Intellitec Electronic Climate Control Energy Management unit making clicking noise

We have a 2000 Bounder 39Z DP with the Intellitec Electronic Climate Control Energy Management Unit part # 00-00591-200 installed. The original unit lasted some 16 or 17 years. the second one only lasted a few years and now the current one is clicking after only 2 months. One of the heaters just comes on even when the controller is turned off, as I can tell this is a separate problem not related to this unit. The other heater works good as well as both of the A/Cs.

The unit doesn't click all the time or on any set pattern we can figure out, nor does it appear to affect anything else except us. The clicking is so loud it wakes the DW up out of a sound sleep (DH takes his hearing aids out at night). The only way to stop it is to remove the power plug from the unit and put it back some time later. Doing this gets us no clicking for sometimes only a few hours or upward for many days, again no apparent pattern. I guess if the A/Cs were needed it might get pretty warm after pulling the power plug and waiting before plugging the power back to the unit.

This has happened while plugged into "shore" power, haven't notice it while running the generator (we don't use it much) and don't recall if it clicks while on house batteries only. However, since this unit is a 12 volt system I would think that the clicking has or will happen when only on battery power.

Has anyone else had a clicking problem with their Intellitec Electronic Climate Control Unit. If so, what did you do and were you able to determine what caused the unit to fail. At close to $140 per unit one hates to just keep buying new units, even though I have read they can be rebuilt for less than new prices.

Thanking you in advance for any input you may have that will help us to understand what's going on.

Tom and Barb
2000 Bounder 39Z
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Old 10-17-2020, 10:50 AM   #2
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Sounds like your 12 vdc source is not providing enough power to the thermostat.
Good Luck
John
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Old 10-17-2020, 07:05 PM   #3
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John, thank you for your input about possible lack of 12 vdc. To my knowledge, our house batteries have never dipped below 12.5 vdc. However, since you mentioned it the next time it starts clicking I'll verify the voltage. This is so irritating because there is no set pattern as to when it starts. Today it hasn't made a single sound, go figure.
Thanks again.

Tom and Barb
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Old 10-18-2020, 08:47 AM   #4
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A number of things can cause your problem beside a defective unit. If the 12 vdc is too low, any relays relying on the 12 volts to operate the coil will chatter/click. Also, electrical interference like RFI will get into a circuit and cause strange things. One source of RFI is florescent lights. I had an issue with the switches on our thermostat. I sprayed switches and connectors with CRC contact cleaner and that solved the problem.

Good Luck
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Old 10-21-2020, 06:34 PM   #5
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This is a common problem with this intellitec system. It is the relay chattering. I have had good luck with turning off all 12 volt power and rapidly working the selector switch up and down several times. If this does not work, get in touch with waiter 21. He has a complete replacement system for this problem. It is all digital and up to date not twenty five year old technology.
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Old 10-28-2020, 12:13 PM   #6
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I am fairly new to this web, I am having trouble with my intellitec control also and would like to get ahold of waiter 21. How do you go about this?
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Old 10-29-2020, 09:02 AM   #7
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Get on irv2. Go to motor homes. Right at the top of the paGe is a small powered by google site. Put in waiter 21. Then hit search.
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Old 10-30-2020, 08:59 AM   #8
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Quote:
Originally Posted by tnrvers View Post
KF5UMC

John, thank you for your input about possible lack of 12 vdc. To my knowledge, our house batteries have never dipped below 12.5 vdc. However, since you mentioned it the next time it starts clicking I'll verify the voltage. This is so irritating because there is no set pattern as to when it starts. Today it hasn't made a single sound, go figure.
Thanks again.

Tom and Barb
2000 Bounder 39Z
When I had my 39Z I would notice the same if the charging/load etc was greater than what the input was set for or could handle. Are you setting your input current when plugged in? And it's also possible even though the house batteries are showing 12.5 that their life may be near an end.
Good luck.
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Old 11-05-2020, 10:33 PM   #9
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Our controller started dong that too (along with the mystery furnace starting). And we have recently had a low battery voltage situation (on 7 month old batteries no less). I found a temporary "cure" was to have either the heater or A/C turned on but the thermostat set so it would not run. Seemed the clicking only occurred when everything was turned 'off'.
Got the batteries good and charged (so far - we'll see if they hold it) so we'll see if it continues or not.
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