I have a wireless Mitsubishi Electric MCCH1 Central Controller ( https://shop.rfwel.com/mitsubishi-mc...al-controller/) and wireless receiver MIFH1 ( https://shop.rfwel.com/redlink-mifh1...terface-cable/) for AC. It will only allow AC for 2 plus hours. I tried still doing setting but it is still 2 hours. Could be clock setting that needs to be set each time but it is not working out. Please help!
06-30-2021, 03:36 PM
First, you need to make sure that MCCH1's clock is set correctly to your current time. Confirm if there is a timer set or any programming start/stop time.
To remove the schedule proceed as follows:
1\. Press fan and up button at the same time for 5 seconds. You will now be able to go to the settings to make the changes
2\. Change setting 138 to 1 to make the control non-programmable
3\. Also, make sure you change setting 136 to 0
Once you make these changes via the thermostat, it will not be on the program/schedule.
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