What’s Going On?

Just completed an investigation into why the mast of a rock drilling machine came crashing down on the machine with no warning.  If you’ve ever seen a rock drilling machine, they are equipped with a mast that rests in a horizontal position and can be raised into a vertical position for drilling.  In this particular case, the mast was in the process of being lowered when four bolts failed at the pivot points where the mast rotates from the vertical to horizontal.  Looks like it was just one of those unfortunate things that happens.  Currently conducting an investigation into why the electrical system in a cement mixing truck appears to have short circuited and burned some of the wiring.

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Buyer Beware!

Recently, we were called to investigate damage to a residential air conditioning unit. The allegation was that the unit was destroyed by fire.  Upon examining the unit, no evidence of fire was found.  That is, there was no evidence that any wiring or controls were burned and the compressor and condenser were both undamaged (as far as fire was concerned). However, during the examination of the unit, the compressor was found to have blown a terminal and caused its destruction. Most HVAC technicians will recognize this scenario. The possibility of lightning causing the damage was also explored and eliminated because there was no lightning in the area at the time of the compressor failure.  Instead of replacing the compressor, the homeowner had the entire unit replaced with a unit of greater capacity.  In doing so, the homeowner assumed that the insurance company would pay for the new installation which amounted to more than $8000.00.  Without a covered loss, the insurance company denied the homeowner’s claim leaving the homeowner to  absorb the entire cost of the new installation.   The lesson to be learned here is that you do not want to commit to a major purchase unless you can handle the expenditure if your insurer denies your claim. In this case, the cost to replace the compressor and recharge the unit would have been in the neighborhood of $1200.00 to $1500.00, which is significant lower than the new unit.

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