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Armstrong International
221 Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Ph. (269) 279-3602 Toll Free (888) 468-4673 Fax (269) 279-3130
Troubleshooting
Contents
DRV80 Display Errors ................................................................................56
Common Faults
“Blend temperature rises when system is in zero demand”... ........... 59
“Outlet temperature uctuates more than ± 5°F”... .............................60
“LCD Display shows any of the following” ..........................................61
“Blend circuit does not fully return to normal within the
Disinfection Timeout period” ..............................................................62
“Constant dierence between blend circuit temperature reading
and DRV80 temperature display” ....................................................... 63
“Unable to adjust outlet temperature” ................................................. 64
“No display” ............................................................................................65
“No display or no control” ....................................................................65
“Cannot read the LCD display” .............................................................66
“High pitched noise from DRV80” ........................................................67
“Water leaking from DRV80” .................................................................68