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8. TROUBLESHOOTING
Fault
Pressure drop in the tank.
Pressure switch valve leaks when compressor is idle.
Compressor stops and does not restart.
Overload switch activated (Fig.6).
Compressor does not stop at max. pressure.
Compressor noisy with metallic knock.
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Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500
© Jack Sealey Limited
Cause
Air leaks at connections.
Non-return valve seal defective.
Motor failure.
Occasionally the start up load may activate switch.
Extension lead too long.
Head unloader not operating (Section 4.3.5).
Pressure switch fault.
Filter clogged.
Head gasket or valve fault.
Bearing or piston damage.
01284 703534
sales@sealey.co.uk
Original Language Version
Remedy
Run compressor to max. pressure, switch off unit.
Brush soap solution over connections and look for
bubbles. Tighten connections showing leaks.
If problem persists contact Authorised Service Agent.
Empty the air tank, remove the non-return valve cap
(fig.5.3) and clean, or if necessary, replace
the seal (fig.5.1).
Contact Authorised Service Agent.
Leave for a few minutes then press the reset button.
Remove extension lead and test the compressor by
connecting as near to the main fuse box as possible.
Contact Authorised Service Agent.
Contact Authorised Service Agent.
Clean or replace filter element.
Contact Authorised Service Agent.
Contact Authorised Service Agent.
www.sealey.co.uk
SAC05030.V2, SAC10030.V2 Issue: 2 (L) -15/08/18
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