<p>Following a recent call out where A.C units were reported as not working following a power cut, it was discovered that one of the phase connection on the main inverter board was burnt out. We tested tested compressor resistance and it appears ok, however until the external inverter PCB &amp; ancillary power boards etc are replaced we cannot carry out a full system test. It was reported that the issue was a result of a power cut in the street, it is likely a phase was &quot;spiked&quot; or &quot;dropped&quot; which resulted in the issue.&nbsp;</p><ul><li>Operatives to apply protective sheeting to work routes and working areas.</li><li>To supply &amp; install external inverter PCB &amp; ancillary Power PCBs including Noise filter and wiring harnesses (13 components total). No other parts are covered within this quotation.&nbsp;</li><li>On completion carry out system operational tests.&nbsp;</li><li>Site to be left clean and tidy.</li></ul><p>Our total cost to carry out the above works in normal working hours shall be &pound;3,006.92</p>