Enviro PILATUS PC12 User Manual

Component Maintenance Manual
12037 N Highway 99
Seminole, OK 74868
Phone (405) 382-0731
Fax (405) 382-0737
http://www.enviro-ok.com
Copyright © 2017
ATA 21-00-23
Page | 22
Revision 10
June 1, 2017
NOTE: Refer to Refrigerant Flow (Figure 1), Section 4.
INDICATION
PROBABLE CAUSE
POSSIBLE SOLUTION
A. No System Power
1. Ground power not connected
1. Plug in ground power cart
2. Aircraft power switch off
2. Energize power switch
B. Power On But System Will
Not Operate
1. Air conditioner breaker off
1. Turn on
2. Air conditioner breaker failed
2. Replace
3. Air conditioner mode switch
failed
3. Replace
4. Relay(s) failed
4. Replace
5. Failed pressure switch
5. Replace
6. Failed drive motor
6. Replace
7. Vented system
7. Pressure check, evacuate and
charge
8. Low ambient temperature
8. Normal cut out function
9. Drive motor fuse blown
9. Replace
10 Drive motor temp switch failed
10 Replace motor
Table 3 Trouble Shooting List

Enviro PILATUS PC12 Specifications

General

Brand	Enviro
Model	PILATUS PC12
Category	Ventilation Hood
Language	English