Im trying to find out how to get fault codes up on our mitsubishi remote control. the unit is 4 years old

Hi Tania,
Have you gone through this checking sequence.? it's from a Panasonic a/c manual. It could be something as simple as a clogged filter. Once you have rectified the fault, you will probably have to clear the fault code as described at bottom below, before it will condescend to work again.
David

• Once error occurred during operation, the unit will stop its operation, and Timer LED blinks.
• Although Timer LED goes off when power supply is turned off, if the unit is operated under a breakdown condition, the LED will ON again.
• In operation after breakdown repair, the Timer LED will not blink. The last error code (abnormality) will be stored
  in IC memory.

14.2.2 To Make a Diagnosis

1. 1 Timer LED starts to blink and the unit automatically stops the operation.
2. 2 Press the CHECK button on the remote control continuously for 5 seconds.
3. 3 "- -" will be displayed on the remote control display.
   Note: Display only for "- -" (No signal transmission, no receiving sound and no Power LED blinking)
4. 4 Press the TIMER ? or ? button on the remote control. The code "H00" (no abnormality) will be displayed and signal will be transmit to the main unit.
5. 5 Each press of the button (? or ?) will increase error code number and transmit error code signal to the main unit.
6. 6 When the latest abnormality code on the main unit and code
   transmitted from the remote control are matched, Power LED will
   light up for 30 seconds and a "beep" sound (continuously for 4
   seconds) will be heard. If no codes are matched, Power LED will light up for 0.5 seconds and no sound will be heard.
7. 7 The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5 seconds or operating the unit for 30 seconds.
8. 8 The LED will be off if the unit is turned off or the RESET button on the main unit is pressed.

14.2.3 To Display Memorized Error Code (Protective Operation)

1. 1 Turn power on.
2. 2 Press the CHECK button on the remote control
3. 3 "- -" will be displayed on the remote control display. Note: Display only for "- -" (No signal transmission, no receiving sound and no Power LED blinking)
4. 4 Press the TIMER ? or ? button on the remote control. The code "H00" (no abnormality) will be displayed
   and signal will be transmit to the main unit.
5. 5 Each press of the button (? or ?) will increase error code number and transmit error code signal to the main
   unit.
6. 6 When the latest abnormality code on the main unit and code transmitted from the remote control are matched,
   Power LED will light up for 30 seconds and a "beep" sound (continuously for 4 seconds) will be heard. If no
   codes are matched, Power LED will light up for 0.5 seconds and no sound will be heard.
7. 7 The breakdown diagnosis mode will be canceled unless pressing the CHECK button continuously for 5
   seconds or operating the unit for 30 seconds.
8. 8 The same diagnosis can be repeated by turning power on again.

14.2.4 To Clear Memorized Error Code after Repair (Protective Operation)

1. 1 Turn power on (in standby condition).
2. 2 Press the AUTO button for 5 seconds (a "beep" sound is heard) on the main unit to operate the unit at Forced Cooling Operation Mode.
3. 3 Press the CHECK button on the remote control for about 1 second with a pointed object to transmit signal to
   main unit. A "beep" sound is heard, and the Error Code is cleared

Not sure about E4 , but 4 blinks or flashes usually means the compressor isn't starting properly. It could be a faulty start capacitor or wiring or faulty indoor PCB (Board)

Codes to Mitsubishi are: 0005 0151 0051 0004 0009 0254 0022 0141 0180

Universal remotes have 3, 4, and 5 digit codes depending on the age of the devices to be controlled. 3 digit codes can only control devices made before year 2000. 4 digit codes can do upto 2007, 6 digit codes can do upto the date of the remote manufacture date. Your universal remote is too old for your TV.

the 76 code is a code for the remote control. if you have a remote installed check for loose wiring or it could be a fried remote disconnect it and see if it runs then

mitsubishi 45605 . I bought a universal remote and it wont respond anymore. I tryied reprogram and it wont take the old code or any code. I bought a new remote and it wont respond

E39 Fault is thermister, Mitsubishi way of saying im not going to start because there is something wrong. Generlly it is compressor fault or short of gas. Im guessing if you turned the power out. Waited twenty seconds, turn it back on. Now if you go to the outdoor part. Wait exactly 3 mins. If you hear the compressor try to start and fail then it would more then likely be your compressor if you dont hear anything and the unit faults out it will either be a board or short of gas.

Either way If the unit is under five years old get a warrenty agent out to look at it.

Sorry I couldnt tell you for sure but MHI are very vague when it comes to fault codes

Can the remote do a code search? I had to do that with my Tivo remote to control my new Polaroid.

Go buy another one at Bestbuy. They give you the book on codes too!

this is from your producer: Product Description ? BASIC OPERATION OK ? everyone knows what a handheld remote control unit does for your home electronics. You can control your basic four (4) components: TV, DVD player, VHS player, Cable or Satellite tuner. Setup is simple for these basic 4? put in the batteries, look up the manufacturer of your component (Mitsubishi TV) and note the possible 3-digit ?program codes?? turn on the component, press the remote control?s PROGRAM button until the light stays red, press the component button (i.e., TV), enter in the ?program code?, and press the ?power off button? ? if the component (i.e., TV) turns off: you are programmed! If the component (i.e., TV) doesn?t turn off, then repeat the sequence using another of the manufacturer?s program codes until it does. Easy ? took me about 3 minutes to program my old Zenith TV (in the bedroom), my SONY DVD player, and my Mitsubishi S-VHS player. No problems at all. HOWEVER, in case you do run into a component for which the ?program codes? don?t work? you can go through a sequence to self-identify the coding. While I won?t go into it here, it is only slightly more time consuming than the other method. As my codes worked fine, I can not address this aspect, so I won?t make a claim we didn?t test.