Clean air exhaust fan and driver board Annual PR 50 A1-T
To maintain proper cooling of electronic components
Time of day
1 Perform all UHC daily maintenance procedures.
Do not attempt to clean a hot UHC.
2 Unplug UHC power cord.
Failure to unplug the power at the wall outlet could result in serious injury or death. The power switch on the UHC does not disconnect all incoming power to the cabinet.
3 Remove side panels.
4 Brush dust from circuit boards.
5 Access exhaust fan.
Tip: You do not need to disconnect the switch wiring when you pull the fascia out.
Disassembling and cleaning the UHC requires at least 2 people.
6 Clean air exhaust fan blades.
Sanitizer solution, McD APSC
7 Replace shelf, fascia, side panels, and top panels.