60000 BTU mitsubishi air.con is showing P8 error code and is blowing only hot air even temperature is set at 16 degrees. What might be the cause and how to rectify it.

SOURCE: Remington PTAC Heater/Cooler

you may have a bad heat sequencer

SOURCE: Mitsubishi Mr Slim air conditioner

get model and serial #s and look up unit for diagnostic codes

SOURCE: Soleus MA-9000AH blows hot air

Sounds like the compressor is not running. This model had lots of problems with over heating. It also will never really blow more than a moderate cooling through it. Since you have cleaned all the filters and is still 100 deg, I believe the failure will be the compressor itself or the capacitor.

If you find an oily residue in the drain or on the pipes, it may have simply leaked the refrigerant out. Good Luck!

SOURCE: mitsubishi heatpump not blowing out heat.

One reason could be a shortage of refrigerant. Another could be incorrect mode selection? Or the reverse valve which changes the unit from cooling to heating is either not being energised or may be blocked and would have to be replaced.

SOURCE: I have a Danby DPAC10030

Clean you filter and clean the area under the intake duck it will solve your problem