DeVilbiss DeVO/MC44-90 - Troubleshooting Guide

SECTION 6
TROUBLESHOOTING GUIDE
Symptom
o. 、 Possible Problems Suggested Remed
Visible | Audible | Compressor Other 99 y
Alarm Alarm On or Off Symptoms
1. OFF ON OFF On/Ott Line cord not properly installed | Insert plug in receptacle or replace
switch not [| or defective line cord
illuminated | yo power at receptacle Check building circuit breaker or
fuse, or have house wiring checked
by qualified electrician.
Circuit may be fully loaded with
other appliances and another
receptacle may be required.
Line cord disconnected at Reconnect line cord at terminal
termina! block block
Defective On/Off switch Replace switch
Blown fuse in power connector Replace fuse
2. ON ON OFF On/Off Defective MC board Replace MC board
İN ted Loose Compressor Wire Tighten or attach wire
utumına .
Defective compressor Replace compressor
Defective Capacitor Replace Capacitor
Upper and lower wiring harness | Reconnect wiring harness
disconnected
3. ON ON OFF Unit warm Compressor overheated due to:
o the a Occluded filters Replace filters
U an . . : :
cannot be Restricted input or output air Remove obstruction
restarted passage
for several | Low line voltage Check line voltage, use alternate
minutes circuit independent of other
appliances
Defective cooling fan Replace cooling fan
Defective compressor Replace compressor
4. OFF OFF ON Pulsating Felt and/or intake bacteria Check filters and replace if
air noise filters not in place or defective necessary
Compressor intake hose Reconnect hose
disconnected
5. OFF OFF ON Excessive Defective or loose motor Replace or tighten motor mounts
noise mounts
Defective compressor Replace compressor
Defective cooling fan Replace cooling fan
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