Why doesn't it get cooler ?

Lian LI PC-75 work log. {56k beware} ' Overclockers Forums

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Aug 18, 2007 - 13 posts - ‎9 authors I will be using the Lian Li PC-75 for the watercooling build. ... After about 1/2 hour with a jigsaw and dremel the finished product. ... Vapo sides for me so that they will be 4 inches longer and fit flush with the Lian Li PC-75 ... Will go higher now that I am runningcooler but for the purpose of the tests this works ...

if it is always set on high,it never gets a chance to cycle,it is too small for the area that you want cooled,turn the thermostat to 5 and see if it helps,it will get the room cooler,but,a little slower.

no it is not due to any thermostat issue, just set the temp 2 degree low.

your room temp will allways be cooler then thermostat.

Mine did the same thing:

• Try first replacing the temp sensor: $4.76 from Haier Part#RF-6250-01

• If that doesn't work replace the control board: $26.81 from Haier RF-0668-04

The refrigerant and compressor are related in cooling the room.As for heating problem the thermostat needs to be checked.
if you're used to a certain temperature of air and your heat pump is producing much cooler air, take the following steps. (Note that a heat pump may go into a defrost mode to prevent icing. When this happens, it can temporarily output cold air. Also be aware that the heat pump will have to work harder to produce heat.)

1) First be sure the thermostat is set properly. Try raising the set temperature 5 degrees F. and waiting a few minutes.

2) Be sure the room-heating registers are open.

3) Check the heat pump filter. If it's dirty, change it.

4) Be sure the auxiliary heating elements are working . 

5) Clean the coils of the outdoor condensing unit.
If still the same problem then thermostat needs to be checked and replaced.
Thanks.
 

60 IS A DREAM TEMP MOST UNITS WILL NEVER REACH THESE TEMPS. THERE NOT MADE TO. AT 60 YOU LOWER THE HEAT ABSORPTION INSIDE AND OUTSIDE AND WITHOUT HEAT IT BEGINS TO ICE UP WHEN IT IS 70 INSIDE AND 70 OUT SIDE YOU WILL ICE UP 75 IS GOOD SETTING. IF YOUR TSTAT HAS A HOLD BUTTON SET TEMP AND PRESS HOLD THAT MY HELP

personally i'd just replace the thermostat, but try pulling the front panel off and look on the circuit board and see if there is a jumper for F/C or any other settings. you may try changing its position. you can also remove the batteries for 15 minutes and see if it resets itself. the only other thing it could be is a wiring issue.

bad thermostat. the stat can be as must as 5 degrees off. try, if possible testing the unit in a differeent location