Question about Haier Heating & Cooling

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Haier hsu 18 heat pumps . I have 6 of them , all intermittently come up with e17. otherwise sometimes they will just blow fanned air ( compressor not running ) all day . The power source is fed to the indoor unit first, with the main power and data then fed along the same standard 4 core cable to the outdoor unit. I have fitted one of these units which had this problem to another site , and instead of wiring it as per the above way (as per instructions) I put the data cable seperate to the other mains supply cable. This machine has since operated faultlessly. I have also installed HSU 22 units which use the same SPDU (i think) where the main power supply goes directly into the outside unit first. They have operated faultlessly. Would I be correct in coming to a conclusion that the data cable is being corrupted by inducted spikes from the main power feed cable, and that if I reinstalled these "faulty" units, but have the main power source to the outside unit first , then they would run OK ??. Have you struck this before , do you have another solution or do I have a bunch of lemons ??? I do know of many other of these units elsewhere with the same problem. many thanks jason

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  • Haier Master
  • 2,410 Answers

I think you are on the right track. Possibly read some specs on what wire you should be using. I've never had to remove or reinsulate data wire but am well aware of how sensitive "data" wires can be.

If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

Posted on Mar 03, 2017

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Posted on Jan 02, 2017

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SOURCE: carrier split 42G250HF-1(indoor unit

I'm not sure exactly what unit you have and what controls you have installed on the unit. But....there usually is a flash code schematic on the unit. Usually on the inside of the blower compartment cover. This should tell you what is wrong with the unit. It could have a low voltage short somewhere and is loosing the call for cool. So the answer can be a possible yes to your question but without knowing the flash code, it's hard to tell from my point of view. You might end up calling a service professional out to check it.

Posted on Mar 30, 2009

  • 16 Answers

SOURCE: Goodman forced air gas furnace not firing

if your power vent moter is not running you should not have have glowing ignitor.Frist the vent moter must close an air prove switch in series with the idnitor .seems you have a stuck air prove switch.Its the one with a hose attached

Posted on Apr 07, 2009

  • 1 Answer

SOURCE: DeLonghi Planus quick connect split heat pump.

I was told by a delonghi technician that it does this to defrost the unit.
Hope this helps.

Posted on Apr 22, 2009

  • 1 Answer

SOURCE: indoor unit runs ok outdoor unit compressor and fan do not start

Hello rfrizzell,

My unit is giving me the same alarm. If you have found the solution, please email me at [email protected]

Thank you very much.

Posted on May 10, 2009

  • 1300 Answers

SOURCE: Airforce 12000BTU Air Conditioner wiring problem

The outdoor unit should have 2 small wires connected to the contactor coil. This delivers the 24v "Signal" to energize the coil. The wire from the t'stat for cooling are usually yellow, in almost every case. When you put the t'stat in the cooling mode and set the temp lower than the room temp, the indoor and outdoor unit should come on. Check for voltage on the terminal block for 24 volts accross the yellow and common wire. Common could be ground on some handlers. If you have the 24 volts, then check for 24v on the 2 small wires (usually 18 to 22 gage wire) on the contactor coil. If no voltage, trace the 2 wires back to the indoor unit and see where they go. If they are the ones that are not attached, put one on the yellow wire terminal and the other on the common terminal. This will send power to the indoor unit and then piggyback to the outdoor unit. Do not remove the yellow and common from the terminal block. Don't be too concerned about the colors from the outdoor coil wires. Just make sure they are hooked up right. Good Luck and hope this gets it going.

Posted on Jun 07, 2009

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I was leaning towards a bad contactor. Either sticking sometimes or not making good contact. I would inspect the contactor for pits or burn marks near the contacts. DO SO WITH POWER OFF of course...but, what's the reset button you are referring to?? I'm assuming this is a heat pump, please send model number!!

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