38MGR Error Code Retrieval
• Push SW1 (ODU PCB) to check the unit’s status while
running. The digital display displays codes each time the
SW1 is pressed.
• For the last error code, press 45 times.
• Error code will display on the digital display.
• For information on what the other codes can tell you see
next page.
Continued on next page
MGR30K PCB, SW1 button/display under top cover of control box
MGR36 & 48K PCB’s
SW1 Button
MGR18 & 24K PCB’s
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