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Armstrong International
Parc Industriel Des Hants-Sarts, 2ème Avenue No. 4, Haerstal, B-4040, Belgium
armstronginternational.com/brain
Troubleshooting
Contents
DRV80 Display Errors ................................................................................59
Common Faults
“Blend temperature rises when system is in zero demand”
.............. 62
“Outlet temperature uctuates more than ± 2°C”.
.............................. 63
“LCD Display shows any of the following” ..........................................64
“Blend circuit does not fully return to normal within the
Disinfection Timeout period”
..............................................................65
“Constant difference between blend circuit temperature reading
and DRV80 temperature display” .......................................................66
“Unable to adjust outlet temperature” ................................................. 67
“No display” ............................................................................................68
“No display or no control” ....................................................................68
“Cannot read the LCD display” .............................................................69
“High pitched noise from DRV80” ........................................................70
“Water leaking from DRV80” .................................................................71