How to fix air leaks in my Bosch CET4-20?
If you notice air leaks in your Bosch Air Compressor, the tube fittings may not be tight enough. Tighten the fittings where you hear air escaping, and check them with a soapy water solution. Be careful not to overtighten them.
What to do if my Bosch CET4-20 Air Compressor regulator knob has a continuous air leak?
If the regulator is damaged, it should be replaced.
What to do if my Bosch CET4-20 regulator will not shut off air outlet?
If the regulator is damaged, it should be replaced.
What to do if my Bosch Air Compressor has air leaks from the safety valve?
If your Bosch Air Compressor has air leaks coming from the safety valve, it may be defective. Try operating the safety valve manually by pulling on the ring. If the valve continues to leak, it needs to be replaced.
What to do if my Bosch CET4-20 has air leaks between the head and valve plate?
If there are air leaks between the head and valve plate of your Bosch Air Compressor, it is likely due to leaking seals. Contact a Bosch factory service center or a Bosch authorized service center for assistance.
What to do if my Bosch CET4-20 has air leaks in the air tank or at air tank welds?
If your Bosch Air Compressor has air leaks in the air tank or at the air tank welds, the air tank is defective and must be replaced. Do not attempt to repair the leak.
Why is my Bosch Air Compressor not supplying enough air?
Your Bosch Air Compressor might not be supplying enough air due to several reasons: * Prolonged excessive use of air: Decrease the amount of air usage. * The compressor is not large enough for the accessory: Check the accessory air requirement. If it is higher than the SCFM or pressure supplied by your air compressor, a larger compressor is needed. * Hole in the air hose: Replace the air hose. * Check valve restricted: Remove, clean or replace it. * Air leaks: Tighten the fittings. * Restricted air intake filter: Clean or replace the air intake filter.
What to do if my Bosch Air Compressor has excessive air tank pressure and the safety valve pops off?
If the safety valve on your Bosch Air Compressor pops off due to excessive air tank pressure, it could be due to the following causes: * The pressure switch does not shut off the motor when the compressor reaches cut-out pressure: Set the On/Off switch to Off, if the unit does not shut off, contact a Bosch factory service center or a Bosch authorized service center. * The pressure switch cut-out is too high: Contact a Bosch factory service center or a Bosch authorized service center.
Why does my Bosch CET4-20 Air Compressor have a knocking noise?
A knocking noise in your Bosch Air Compressor could be due to several reasons: * Defective safety valve: Operate the safety valve manually by pulling on the ring. If the valve still leaks, it must be replaced. * Pump oil is low: Add no-detergent oil to the pump. * Carbon build-up in pump: Contact a Bosch factory service center or a Bosch authorized service center.
What causes moisture in the pump crankcase of my Bosch CET4-20 Air Compressor?
Moisture in the pump crankcase of your Bosch Air Compressor can be caused by: * Operating the unit in damp or humid conditions: Move the unit to a dry, well-ventilated area. * Using detergent-type oil in the pump: Drain the oil and refill with non-detergent oil.
General| Brand | Bosch |
|---|---|
| Model | CET4-20 |
| Category | Air Compressor |
| Language | English |
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