5 MAINTENANCE AND TROUBLESHOOTING
Invacare® MA50 Series
32
Part No 1148136
5.2
Troubleshooting
PROBLEM
CAUSE
SOLUTION
Mattress not inflating
Not alternating properly
Mattress hose disconnected
Connect hose connectors and lock them in
place
Air hose kinked or split
Unkink hose or replace split hose
Major leak in the air cushions or overlay pad
Replace leaking air cushions or overlay pad
Kinked or split manifold
Unkink manifold or replace split manifold
Has power and fuse is good, control unit does not
come on
Send control unit back to factory for repair
Not alternating, solenoid malfunction
Send control unit back to factory for repair
No air, pump malfunction
Send unit for repair
No power
Control unit off
Check power source and turn on unit
Power cord disconnected
Connect power cord to the power source
No power in the power source
Check power source has power and turn it
On
Power outage
Wait till the power source has power
Blown fuse
Replace blown fuse with an equivalent fuse
