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CAP-215
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Instruction Manual Oil-Less Compressors
12. TROUBLE-SHOOTING
TROUBLE CAUSE REMEDY
Compresso
r
Compressor does not reach Condensate drain valve(s) and/ Tighten and reseal
final pressure or fittings leaking
Premature opening of final safety Clean final safety valve and re-
valve adjust
Piston rings worn Replace
Excessive piston clearance Replace
Compressor output insufficient Pipes leaking Re-tighten
Safety valves between individual Intermediate pressure too high Check valves - see chapter 4 -
stages releasing pressure Valves not closing properly service and clean valves
Compressor running too hot Insufficient supply of fresh Check location max. ambient
cooling air temperature + 40º C (105º F)
Intake or outlet valves not closing Check and clean valves, replace
properly as necessary
Wrong direction of rotation See arrow on compressor and
remedy accordingly
Control does not switch off, Final pressure switch set too high Correct setting
final pressure safety valve relieving Final pressure safety valve defective Replace safety valve
Automatic: Condensate Drain (optional)
Drain valves do not close No control air Check control air line
Drain valves leaking Dismantle drain valve and clean
Drain valves do not open Condensate drain valve piston seize
d
Dismantle drain valve, clean or
replace valve
Solenoid valve does not close Solenoid valve faulty Check solenoid valve and replace
if necessary
No electrical signal Check for voltage from timer
Solenoid valve does not open Solenoid valve faulty Check solenoid valve and replace
if necessary
Continuous electrical signal Check electrical control circuit and
timer