Low
High
Pump
Motor
Excess
Reason and remedy
Pressure Pressure Overheat Overload Noise
for problem.
•
Filter dirty.
Clean or replace.
•
Valves dirty or valves bent.
Clean or replace.
•
•
•
Worn or torn diaphragm.
Repair or replace.
•
Relief valve set too high.
Inspect and adjust.
•
Relief valve set too low.
Inspect and adjust.
•
Plugged pressure line.
Inspect and repair.
•
Low voltage, won’t start.
Check power source.
•
•
•
•
Voltage wrong.
Check power source.
•
•
Rod magnet misalignment.
Realign.
•
Leaky hose or check valve.
Replace.
•
•
•
•
Dirt or liquid in compressor.
Inspect and clean.
•
•
Blown or leaking head gasket
or tubes. Replace.
TROUBLESHOOTING CHART
www.gastmfg.com
ISO 9001 & 14001 CERTIFIED
8
PART NO. 70 - 1570 F1-210 (REV-C)
We have Gast Authorized Repair Facilities throughout the world. For the most
up-to-date listing, contact one of our sales offices below:
World Headquarters
P.O. Box 97
2550 Meadowbrook Rd.
Benton Harbor, MI
49023-0097
Ph: 269/926-6171
FAX: 269/925-8288
www.gastmfg.com
Gast Hong Kong
Unit 12, 21/F, Block B
New Trade Plaza
6, On Ping Street, Shatin
N. T. Hong Kong
Ph: (852) 2690 1008
Fax: (852) 2690 1012
www.gasthk.com
