Question about Mitsubishi Heating & Cooling

1 Answer

Have a Mitsubishi Heavy Industries Split system AC Model SRK80ZEA where the indoor unit operates as normal but outdoor unit does not start, so no cooling. Power ok to both units, no error indications.

Posted by Allan Williams on

Ad

1 Answer

Tom Chichester

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Mitsubishi Master
  • 61,088 Answers

Could be a defective relay in the outside unit

Posted on Nov 08, 2020

Ad

5 Related Answers

Anonymous

  • 182 Answers

SOURCE: Fujitsu Split System AST24RGA-W + AOT24RZAL

with the remote.....turn the fan only on.if the fan does not run its either the board or wiring.

Posted on Aug 23, 2008

Ad
Speed boy

Wouter Frylinck

  • 76 Answers

SOURCE: York Mini-Split Not Cooling? : (

This can only be a gas problem.
the split units goes on on and off if a shortage of gas is involved, the chances that you would here it wont be that big for the fans would make too much noise.
get a repair man for a re gas and all is well.

Good luck.

Wouter.

Posted on Oct 22, 2008

Anonymous

  • 400 Answers

SOURCE: GE mini-Split Error code

Replace the indoor pc board and thermistor.

Posted on Mar 20, 2009

Anonymous

  • 1 Answer

SOURCE: ac split unit indoor an ouydoor unit electrical wiring diagram

machine off

Posted on Apr 25, 2009

jgwhomeequip

Jeremy Reddick

  • 1902 Answers

SOURCE: Fujitsu mini split outdoor unit not running, but indoor unit is running after turnning on

Check the disconnect switch and make sure that both the fuses are good and not shot. If one is shot then the system wont work. There are two fuse. Also be careful due to you will be working around 210 volts

Posted on Jun 01, 2009

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My hitachi inveter split ac green light 9 times blinking and ac not working


Get the model number of your mini split unit (on tag on indoor unit and outdoor unit) Google hitachi error codes. You should be able to pull up a code list for that unit. I believe it may be a communication problem between the indoor and outdoor unit. Possible bad connection of wire going from outdoor to indoor unit

Sep 14, 2018 | Hitachi Heating & Cooling

1 Answer

Mitsubishi Heavy Industries - FDC180HA outdoor, FDT180HA Indoor- The inside unit is installed on the ceiling. The unit is working great. However, water is leaking from the inside of the ceiling unit.


Sounds like the filter or coil is dirty, therefore fan amount up and hindering drainage. Vacuum drain, clean coil, change filter.

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

Jun 20, 2017 | Mitsubishi Heating & Cooling

2 Answers

Mitsubishi ac indoor green light continues blinking indoor fan not working and outdoor also not working


Most likely, there has been an operational fault that has triggered a "lock out". This happens when either a mechanical or electrical component has failed, misreading, or if the system has lost refrigerant. You can try to reset the system (both indoor and outdoor units). That might restart it, but a repairman should be called to pinpoint the issue that caused the fault. There is a diagnostic procedure that can help with the diagnosis, but it involves opening the outdoor unit to read the LED's on the control board.

Jul 25, 2016 | Mitsubishi Heating & Cooling

1 Answer

WHAT IS REFRIGERANT SUCTION PRESSURE OF MY 1 TON SPLIT AC?


R22= 70-80psig
R410a=120-130psig
Depending on many variables such as blower speed, coils clean, indoor/outdoor temps.

Aug 05, 2015 | AMVENT 18000 Btu 1.5 Ton Ductless Mini...

2 Answers

I have a Mitsubishi heat pump that runs well but the outdoor unit does not defrost what could be the problem.


Why does my heat pump ice up in Winter?
Heat pumps naturally ice-up in the winter. It is normal for the entire coil to be covered in a white frost and even light ice, during cold weather conditions. However, it is bad for the entire unit to be encased in ice. This indicates ductless heat pump problems which should be addressed quickly to save energy and avoid serious damage to your ductless unit. These systems should periodically go into a defrost cycle. This keeps the unit running efficiently. If the coils are blocked by ice, proper heat transfer between the coil and the outside air will not occur.
How does the defrost mode work?
When the mini split heat pump goes into defrost, the reversing valve inside of the outdoor unit is energized, switching the system from heat to the air conditioning mode. The outdoor coil becomes the hot, the indoor coil becomes cold, and both - the outdoor and indoor fans shut off. This allows the outdoor coil to melt accumulated ice. When the built-in micro-computer analyzes that all ice have been melted, the heat pump heating system goes back to heating mode.
sanyo-mini-split-defrost.pngA cloud of water vapor may be seen rising over the outdoor unit and a "whoosh" sound can be heard as the refrigerant reverses direction. The entire process usually takes up to 10 minutes (depending on conditions).
How often does the system goes into defrost mode?
Ductless mini-split heat pumps have different ways of determining when to go into defrost. The built-in microcomputer determines outdoor temperature, refrigerant pressures, and several other factors. In colder temperatures the system will go into defrost more often than in warmer.
If a ductless mini split heat pump is severely iced-up in the winter it is possible that it isn't defrosting (though there could be many other causes). Let the manufacturer certified technician check your system

Oct 29, 2011 | Mitsubishi Mr. Slim MXZ30TN Air...

3 Answers

Misubishi split a c 2 tons green light blinking problems


Please write how many times blinking and with an interval. Depends upon it, we can give solution.

Normally, blinking 5 times means for drain motor malfunctioning. Check drainline, oif blocked clean it. If drain motor not working, replace it.
If blinking 2 times, Indoor room air thermistor defective replace.

Thanks.

Feb 18, 2011 | Mitsubishi MSZ-A15NA Split System Air...

1 Answer

I have an LG split system air conditioner model number LSZ244VN-4 it is coming up with a fault code of CS after it has been running for approx 5 minutes


There is no CS code. Please read as C5.
Fault Code 05 and 53 (CH05 is displayed at indoor unit, 53 is displayed at outdoor unit)
This fault code indicates a communication error between the indoor and outdoor units; this is usually caused
by wiring errors or condensate pumps connected to the inter-connecting cable.
The communication between the units is a fluctuating DC voltage commonly called a serial signal, it can be
easily lost if the wiring is not done correctly. If there is a communication error fault CH05 will appear within 5
mins of powering up the system.
Testing
• Check Outdoor and Indoor Power Supply Voltages ( 230V ±10% ) and correct as necessary.
• Check for any mis-wiring or loose connections and correct as required.
• Check the resistance between communication line and GND. (Normal: Over 2M).
• If one Indoor unit operates normally Outdoor PCB is generally normal.
Turn on the power and start the indoor unit in cooling, set the temperature to 18ºC; the serial communication
signal will only be present for the first 3 mins of operation.
Set your meter to DC Volts, Test between terminals 5 (Red probe) and 2 or Earth (Black probe) of the outdoor
unit, you should see a fluctuating 0-72 Vdc.
If the Voltage is not present disconnect the terminal 5 cable, test the Voltage between this wire (Red probe)
and 2 or Earth (Black probe), you should see a steady voltage in the range of -0.1 to -10.0 Vdc. If No Voltage
is present either the cable or Indoor PCB must be faulty. This can be determined by checking the voltage
output on the Comms terminal of the Indoor unit, with the Comms wire disconnected. If No Voltage is present
the Indoor PCB must be faulty, if present, cable must be at fault.

Jan 19, 2011 | Heating & Cooling

1 Answer

Indoor unit freezing up


THE OUTDOOR UNIT HAS A CONTACTOR WITH THE CONTACTS WELDED TOGETHER THE CONTACTOR CONNECTS TO THE COMPRESSOR AS IT TYPICALLY PULLS A SURGE OF 20 -30 AMPS OR MORE..WITH THE INDOOR UNIT IN FAN ONLY THE COMPRESSOR SHOULD NOT BE RUNNING. THE CONTROL WIRES GOING TO THE UNIT HAVE 24 VOLTS TO THE CONTACTOR TO PULL IN THE CONTACTS TO SUPPLY 220 TO COMPRESSOR.

Mar 09, 2010 | Heating & Cooling

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

60 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Heating & Cooling Experts

Marvin
Marvin

Level 3 Expert

85239 Answers

NOEL
NOEL

Level 3 Expert

8549 Answers

Vernon Taylor

Level 3 Expert

7415 Answers

Are you a Mitsubishi Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...