Invacare IRC5P Manuale Utente

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SECTION 4—TROUBLESHOOTING
18
LOW PRESSURE: 
Internal Status Indicators: 
RED: One Flash
GREEN: One Flash
Or
RED: One Flash
GREEN: Three Flashes
Control Panel Indicators: 
RED: On 
YELLOW: Off
GREEN: Off
Unit plugged in, power switch 
on, continuous audible alarm. 
Compressor shut down 
(Failure to cycle due to low 
pressure).
Compressor:
a.  Leaks at fittings or tubing
b.  Leaking or defective relief valve.
c.  Insufficient voltage at outlet.
d.  Worn cup seals or gaskets.
a.  Replace or repair.
b.  Repair leak or replace.
c.  DO NOT use extension cords. Use 
another outlet.
d.  Rebuild top end of compressor. Refer 
Heat exchanger:
a.  Leak at tubing or body chamber.
b.  Inspect tubing and heat 
exchanger.
a.  Replace or retighten.
b.  Replace or retighten tubing. Replace 
Regulator cracked or leaking.
P.E. valve leaking.
Replace P.E. Valve. Check voltage at P.E. 
valve connector on 24 volt D.C. scale. The 
P.E. Valve activates or energizes 
approximately one second prior to the 
activation of the 4 way valve with 
approximately 24 volts. If voltage is in 
excess of 24 volts consistently, replace the 
P.C. board. Refer to Replacing P.C. Board 
on page 58. 
If the P.C. board voltage acts 
normally, replace the P.E. valve. Refer to 
Replacing P.E. Valve on page 42
.
NOTE: Check for leaks starting at 
the compressor output through all 
the pneumatic connections. Major 
leaks will cause system pressures to 
remain below adequate shift 
(exhaust) pressures and will cause 
compressor shutdown.
Defective Parts:
Internal Status Indicators: 
RED: One Flash GREEN: Five 
Flashes
Or
RED: Two Flashes
GREEN: Three Flashes
Control Panel Indicators:
RED: On 
YELLOW: Off
GREEN: Off
Unit plugged in, power switch 
on, continuous audible alarm. 
Compressor shut down. 
Defective main valve coil.
a.  Replace main valve.
b.  Replace main valve coil.
Connector loose.
Reattach connector.
Defective P.E. valve coil. (Resistance 
80 ohm’s ± 10.)
Replace P.E. coil if shorted or open on 
resistance check. Refer to Replacing P.E. 
Valve on page 42.
Defective P.E. valve.
Connector loose.
Reattach connector.
Defective P.C. board.
SYMPTOM
PROBABLE CAUSE
SOLUTION