Brandon Erke has been certified as a Preventative Maintenance Technician by Mainstream Engineering Corporation. The certificate warrants that Brandon has shown competency in utilizing anticipatory maintenance techniques for refrigeration, heat pump, and air conditioning systems, including problem diagnosis, system optimization, and preventative servicing. Brandon was issued certification number 72EEF068D0B95D490 after successfully completing an examination in compliance with Mainstream Engineering Corporation's requirements.

1. Mainstream Engineering Corporation
By this Certificate Warrants that
BRANDON ERKE
has shown competency and fitness to utilize anticipatory Preventative Maintenance Service Techniques including problem diagnosis,
system optimization and preventative servicing of vapor compression refrigeration, heat pump, and air conditioning systems and has
complied with all of the requirements, as demonstrated by successful completion of a written examination; therefore by virtue of the
powers vested in Mainstream Engineering Corporation by the Board of Directors, Mainstream Engineering Corporation hereby issues
this
Preventative Maintenance Technician Certification
Certification Number:
72EEF068D0B95D490
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