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If you encounter a problem that cannot be solved with this troubleshooting guide, please contact an authorized
Brownie’s Third Lung Service Center. In the case of problems with the electrical system, consult a qualified electri-
cian for repairs.
When you call for service or technical advice, please have the following information:
a) unit serial number and/or model number
b) hours of operation
PROBLEM
CAUSE
ACTION
Intermediate pressure safety
valve blows
a) Intermediate pressure too high
due to defective inlet or pressure
valve of the next stage
b) Safety valve leaking
a) Check / replace inlet or pressure
valve
b) Replace safety valve
Any taste in air
a) Filter cartridge saturated
b) Unqualified lubricant being
a) Replace cartridge
b) Replace oil with an approved brand
used
c) Air Test (contact our Service
Dept for kit)
Compressor overheats
a) Insufficient cooling air
b) Ambient temp. too high
c) Direction of rotation wrong
d) Inlet/pressure valves on one
a) Inlet and pressure valve of one
stage incorrect leaking: direction of
rotation
b) Check location, ventilation for max
+100º F (+38º C)
c) Check / correct rotation
d) Check valves, clean or replace
stage leak
Unit cannot be switched off
a) Turn breaker off
b) Call Brownie’s for technical advice
Unit runs rough and/or
vibrates
a) Drive belt worn out
b) Drive belt loose
a) Replace drive belt
b) Tighten drive belt
