When the error code 'P7' appears you can do the following to fix the problem:
- Check whether the supply voltage is out of range, from 150V to 270V
- Check the voltage detection circuit of the IPM base board is abnormal, if it is abnormal the IPM base board or the electric control board should be replaced.
For any further help or any spare parts needed, contact us via email at info@airconditioningcentre.com or call us at 0370 3344 556.