No heat from Fedders split type ac

[mbenjami]

Hi everybody. Am new in here and I hope I can get some help with my feeders split type ac. In auto, ac and fan mode the fan in the indoor unit run, but when i switch to heat mode the fan stops. After 20-30 mins, still no fan running a clicking noise from the circuit board and red light starts blink continously. Looking in the manual its an indecating light for filter cleaning (that is of course done). The manual says to push the reset button (look on pictures) before closing the lid and the light should disappear. But it doesn`t happen. The fan never starts running until i change mode again to ac, fan or auto.

The Fan in the outdoor unit runs and it touched the compressor and some of the pipes and they are warm. the 4-way valve feels like it warmer on the one side of it. the pipes that goes outside the outdoor unit thru the wall feels cold. I also have looked for a reset button of some kind in the outdoor unit but its no button there.

Please help. I live in norway and there are no repair man here that ever worked on feeders and no spare parts here either so i have to order parts from abroad if you dont think I can repair it here without any special parts for the fedders. The model is EHFE1126B. Attach some pictures of the circuit boards, board with reset switch and the board with the led lights (green is for on/off mode, yellow is for timer and red for filter.

[beenthere]

The original installing contractor should be able to get parts if needed.
You will need to call him.
You have more then trouble then we can help you with over the internet.

Call teh installer.

[mbenjami]

The original installing contractor should be able to get parts if needed.
You will need to call him.
You have more then trouble then we can help you with over the internet.

Call teh installer.

the original inst. contractor can find out whats wrong. Neither can he get parts. i bought it in sweden my neighbour country and they dont have parts for it anymore. its approx 5 yrs. old. there are no parts for feeders in europe. so i have to order it abroad. But i need to find out the problem first. If its the controller board in the indoor unit or the valves or something else

[beenthere]

While. Strange since that unit is made for European countries.

You may want to call Fedders tech support, and see if they will help you.
over the internet, we can't tel for sure.

It could be the board, or a sensor in the OD unit, telling it, its in defrost.

[bzzline]

If there is a radio shack there they might be able to check the indoor coil sensor

[mbenjami]

If there is a radio shack there they might be able to check the indoor coil sensor

hi i did a quick test. i disconnected the indoor coil sensor from the controller board. and no the indoor unit won´t start up. and the red light starts blinking right away. when i turn it on the vane motor starts and stops again and it just blinking red..could this be the problem with my unit ? when i plug the sensor back in its the same problem as before

[mbenjami]

how can i check the indoor coil sensor myself ? also have a friend that has some experience with electronics..can he just use a volt meter or something ?

[mbenjami]

can I try changing the indoor air sensor with the indoor coil sensor. or will that destroy the air sensor ? or are the to different to work ?

[beenthere]

Sorry. We're not allowed to give that type of DIY instruction on this forum.
Its in the rules.

If the 2 sensors are not the same type. Then just swapping them wouldn't tell you anything, because they would be inconpatiable.

Anybody that works on mini splits can work on that Fedders.


Some contractors won't work on equipment that was DIY installed.
So if other contractors in your area think it was a DIY install. Just give them the name of the contractor that installed it.

[bzzline]

I am sorry I don't work on mini splits yet.
I do not know the ohms values for tempature sensor unit On a kitchen stove its around 1000 ohms May be sence I don't know anything this will not count as DYI advise
I think that the indoor sensor would be at fault if the indoor coils were getting warm an the indoor fan motor was not called on.
Could also be a loss of refrigerent locking out indoor fan motor till tempature rise if the indoor coils are not getting warm the sensor would be doing its job not letting cold air blow around (just guessing). On your picture it looked like a oil spot near the indoor temp sensor.
This is just a start of things that can be wrong

[dan sw fl]

http://www.fedders.com/service.htm

European Region/Russia
Customer Service: 49-40-521-400
Fax: 49-40-525-4194

Email: serviceEurope AT fedders DOT com

[mbenjami]

http://www.fedders.com/service.htm

European Region/Russia
Customer Service: 49-40-521-400
Fax: 49-40-525-4194

Email: serviceEurope AT fedders DOT com

thanks alot . will try that :)

[mbenjami]

I am sorry I don't work on mini splits yet.
I do not know the ohms values for tempature sensor unit On a kitchen stove its around 1000 ohms May be sence I don't know anything this will not count as DYI advise
I think that the indoor sensor would be at fault if the indoor coils were getting warm an the indoor fan motor was not called on.
Could also be a loss of refrigerent locking out indoor fan motor till tempature rise if the indoor coils are not getting warm the sensor would be doing its job not letting cold air blow around (just guessing). On your picture it looked like a oil spot near the indoor temp sensor.
This is just a start of things that can be wrong


my friend tried to ohm the sensor and it was connection between the 2 wires. Its not oil spot. its something sticky that are supposed to be there :) the indoor coils are cold but the pipes in the outdoor unit is warm. But the warm is not outside of the outdoor unit..there the pipes are cold. last night the temperatur was around 23 celsius in my living room. warmed up the air with other electric ovens/heaters. Turned everything off and put only the hvac on auto last night and thru the whole night and the temp was 15 celsius degres in my livingroom this morning when i woke up. Auto mode is supposed to be 22 celsius . so its not letting in anykind of heat from the outdoor unit.

[bzzline]

I guess you now have the indoor fan running. Great
you cannot get enough heat from your unit when its -1 outside at least not as much as you can when its 5.5
Have you checked the tempature difference across the indoor coil (with system on and fan running inside and out) at different outdoor ambents?
When it was 15 degrees inside what was the temapure difference of output air temp and the 15 degree indoor temp.

[mbenjami]

I guess you now have the indoor fan running. Great
you cannot get enough heat from your unit when its -1 outside at least not as much as you can when its 5.5
Have you checked the tempature difference across the indoor coil (with system on and fan running inside and out) at different outdoor ambents?
When it was 15 degrees inside what was the temapure difference of output air temp and the 15 degree indoor temp.

i cant feel any temperature difference across the indoor coil. it doesnt feel warm at all. its not that cold outside here now. its approx -1 celsius. the only place i can feel some warmth in my system is inside the outside unit. the compressor is warm and so are some of the pipes running inside the outdoor unit. Also the 4way valve feels hot. can it just be the valve that could be broken ?? And maybe thats why the red lights comes on after a while. as some kind of error message cause the indoor coil doesnt sense any heat after so long as 20-30 min. cause when i disconnected the indoor coil sensor then the same light start blinking. there no error diagnose with leds in this feeder as you for instance have on panasonic hvacs. at least i cant find anything about it in the manual neither on the internet concering this subject. am no expert in this field. just want to find the fault before i order some parts. as i told earlier seems like half of the 4way valve in the outdoor unit feels slightly warm on the opposite side where its warmer. and if its the valve is this a special part for my feeder or could i use a valve from other models that they sell here. here around they have many brands like panasonic, toshiba, foma and other kinds i dont remember :) i can try take some pictures inside the outside unit today after work.

I really appreciate that youre trying to help me with my problem :)

[bzzline]

No problm you can thank HAVC Talk IP I don't know if I am helping you if you buy something you don't need.
If your problem is in the 4-way valve if its not switching over may be because of low pressure , or restrcition.
I would first try to find someone with some gauges an experence. Is there a trade school in your area you could call ?
The unit could have a compressor with a internal valve problem not letting enough pressure get to the 4 way valve to allow it to go from heat to cool. There will have to be a way you can say the compressor is good before changing the 4 way valve.
To keep from buying parts you may not or don't need or getting hurt you will have to find a service Tec.

[mbenjami]

No problm you can thank HAVC Talk IP I don't know if I am helping you if you buy something you don't need.
If your problem is in the 4-way valve if its not switching over may be because of low pressure , or restrcition.
I would first try to find someone with some gauges an experence. Is there a trade school in your area you could call ?
The unit could have a compressor with a internal valve problem not letting enough pressure get to the 4 way valve to allow it to go from heat to cool. There will have to be a way you can say the compressor is good before changing the 4 way valve.
To keep from buying parts you may not or don't need or getting hurt you will have to find a service Tec.

I talked to a experience hvac guy today and he mentioned a electronic device (dont know the english word for it..it may be typed as electronic coil ?) that sits on the 4way valve . Its two wires connecting to it. He told me to disconnect one of the wires to see if something changed. It could be that one that where broken also. But he also mentioned the compressor. I will try disconnect one of the wires and see if something happen and then call him tomorrow again.

[bzzline]

In the link for fedders from dan sw fl there was a reference that the 'red light would blink while the unit was in defrost and no heat would be avilable' Your unit was not on the list but it is a fedders may be the unit will not cycle till that outdoor defrost curcuit it satisfied by outdoor coil sensor or control.
I

[bzzline]

If the coil voltage is the same and pipe size is right another 4 way valve should work the same as the fedders. Finding Refrigerent R -407 for that unit in your area may be another story

[mbenjami]

If the coil voltage is the same and pipe size is right another 4 way valve should work the same as the fedders. Finding Refrigerent R -407 for that unit in your area may be another story

i have a old friend thats has been mounting hvacs for a couple years now. he dont have any deep knowledge in fixing and diagnosing. but he has r407 refrigent available. :)

[bzzline]

In the link for fedders from dan sw fl there was a reference that the 'red light would blink while the unit was in defrost and no heat would be avilable' Your unit was not on the list but it is a fedders may be the unit will not cycle till that outdoor defrost curcuit it satisfied by outdoor coil sensor or control.
I

Did the red light stop blinking?

[bzzline]

In the heating mode and the red light is off - pipes are warm to the outdoor coil it's in defrost mode or there is a problem with the 4 way valve. (just a guess)
at -1 it may go into a defrost every 20 min
was there any frost on the outdoor coil and if so did it cover the complete coil or just part way not all the way to the sensor

[bzzline]

Forget the sensor on the outdoor coil your unit may not have one. I was looking at some other fedder drawings that do not have a outdoor sensor. Everything was controled by the inside circuit board and its sensors.
Sorry I have not worked on these.

[mbenjami]

Forget the sensor on the outdoor coil your unit may not have one. I was looking at some other fedder drawings that do not have a outdoor sensor. Everything was controled by the inside circuit board and its sensors.
Sorry I have not worked on these.

am about to go out and try disconnecting the cable. just got home. well there is an outdoor sensor also in the back of the outdoor unit by the coil..thats what it says on the indoor circuit board ID-SENSOR and OD-sensor and AIR-sensor if i dont remember wrong.

there is no frost at all in the outdoor unit. .

[mbenjami]

when i disconnected one of the two cable from the condensator i heard a clicking noise from the black "thingy" i mentioned earler sitting on top of the 4-way valve. each time i connect and disconnect it clicked...so now took of the cable and started the heat mode to see if it works now. the black "thingy" u can see on the first pictures in this post. also took some other pics from the inside of the outdoor unit.

[jrbenny]

What the hay?

No DIY here, boys. Time to shut 'er down.