<ul>
	<li>To attend site to carry out further investigation works to AC Unit.</li>
</ul>

<p>Upon survey&nbsp;attendance somebody on site had requested ourselves&nbsp;to look at all the units on the 1st floor to check they were working, and we discovered a unit in the board room (Unit 22) was tripped on its MCB, engineers reset this and after 10-15mins it tripped again, but was heating and cooling satisfactorily before it trips.We reset it twice total, between both modes (heating/cooling), this kind of fault is normally related to a &ldquo;compressor&rdquo; fault which is the main expensive component in the outdoor unit (Condenser), however there are a number of reasons:-</p>

<ol>
	<li>System has lack of refrigerant and compressor is getting hot, unlikely as both heating and cooling worked well which indicates good amount of refrigerant.</li>
	<li>Compressor has a electrical winding fault &ndash; needs testing with a Meggar (600v).</li>
	<li>Compressor has a mechanical fault, no real test, but on exhausting the above it is the final option.</li>
</ol>

<p>Please note : The problem was it was raining heavily so we could not risk taking the outdoor unit apart to test.</p>

<p>&nbsp;</p>
