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need advice with FDECU 5
- Thread starter Lmtv772
- Start date
- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
What lights? Post some pictures. Data plates as there was several different models.
FloridaAKM
Well-known member
- 2,699
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- Location
- Gainesville, Florida
I'll guess that your not talking about the genset you picked up out of Lake Butler this past week. Post up some pictures of the unit you are talking about & let the experts here help you thru the problem!
So far nothing but showing blinking lightsopcorn: What does it do?
- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
You have the manuals for it?
I just bought the TM 9-4120-411-14 through barnes and noble
but i don't have any TM's for it apart from that one
- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
There should be a troubleshooting section to explain what the lights mean. That's what you need to start with. Could be as simple as you not having a vent open, or a door closed. The interlock system will stop you from doing anything with the package util its parameters are met.
- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
Did a rempte come with the unit? If so, try it. Or if you are using the remote, try it without it.
Yes, sir there is a remote I tried both ways. It doesn't go into 'fail safe mode' so I guess it's something simple.
I have two units that both seem to do the same thing.
on one unit the bolts of the electronic unit were lose, so I assume the issue is not with my generator.
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- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
When you hooked it up, did you hook it up in a 3 phase hookup? Is your gen set turned to 3 phase, 208/230 volt output?
yes sir ... on both. The wire to the FDECU has bare ends so I connected them to the connectors .
- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
I am trying to get manuals for the the FDECU. I tossed mine when I stopped contracting for the army. Its been 8 years since I even looked at one, so I am shooting from memory. You said you bought one, so I assume you have read the operating instructions? This sounds like a problem I saw a long time ago, and it was something very simple.
Also, when you hooked up your wires, you have to keep phasing in consideration. By that, I mean if the phasing is wrong, the motors will not turn in the right direction, and a relay, will not let you start the unit. If i remember correctly, there should be a light to indicate if the phasing is correct.
Also, when you hooked up your wires, you have to keep phasing in consideration. By that, I mean if the phasing is wrong, the motors will not turn in the right direction, and a relay, will not let you start the unit. If i remember correctly, there should be a light to indicate if the phasing is correct.
Correct , sir
phasing is hooked up right . I found a problem was with the generator. a clip on wire on L2 cane off.
with that fixed the unit will power up and blow air , as the fan is working. Heat works fine , too.
Now when I try and turn son the ac , it will turn the fan ...and after a while the generator will shut off power , and short circuit protection will kick in.
If I take that maintenance panel off and switch the fan, inside fan on. the unit works fine. Heart works , too. But if I turn on the compressor, it will shut off.
Running just the fan will settle at 20% capacity of the generator
phasing is hooked up right . I found a problem was with the generator. a clip on wire on L2 cane off.
with that fixed the unit will power up and blow air , as the fan is working. Heat works fine , too.
Now when I try and turn son the ac , it will turn the fan ...and after a while the generator will shut off power , and short circuit protection will kick in.
If I take that maintenance panel off and switch the fan, inside fan on. the unit works fine. Heart works , too. But if I turn on the compressor, it will shut off.
Running just the fan will settle at 20% capacity of the generator
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- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
When you say "short circuit protection will kick in", just what do you mean? Does the short circuit light come on on the generator, and the circuit breaker pop? Or do you mean something happens on the FDECU?
Keep in mind, phasing means nothing to a heater. And when it blows air, if the motor is three phase, it will turn/blow. Just not in the right direction. So sometimes, a ventilator seems to be blowing, but if you feel it, look at the motor and notice which way it turning, the phasing is wrong. So, are sure the phasing is right? Because if the compressor is three phase, when you try and turn it on, it will pop the circuit breaker. Overload light should come on, on the generator, and it pops the circuit breaker. Or, you have a bad compressor. Or, the three phase relay, (circuit breaker) that turns on the power to the compressor, might have only two of the three contacts feeding power through to the compressor.
Keep in mind, phasing means nothing to a heater. And when it blows air, if the motor is three phase, it will turn/blow. Just not in the right direction. So sometimes, a ventilator seems to be blowing, but if you feel it, look at the motor and notice which way it turning, the phasing is wrong. So, are sure the phasing is right? Because if the compressor is three phase, when you try and turn it on, it will pop the circuit breaker. Overload light should come on, on the generator, and it pops the circuit breaker. Or, you have a bad compressor. Or, the three phase relay, (circuit breaker) that turns on the power to the compressor, might have only two of the three contacts feeding power through to the compressor.
- 15,881
- 22,122
- 113
- Location
- Burgkunstadt, Germany
Is the cable good from the generator to air con? No possibilities it might be the problem? Can you hook up another 3 phase load to your generator and see if it kicks off?
Oh, and you got to stop this sir stuff. I stopped being a sir when I retired!! My name is Guy wiltfang. Guy is good enough!
Oh, and you got to stop this sir stuff. I stopped being a sir when I retired!! My name is Guy wiltfang. Guy is good enough!