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04 Troubleshooting

Error

Slow inflation speed

Inflation failure after 

power-on

The display shows E01

1. Check whether the air compressor's battery level is 

sufficient.

2. Check whether the air hose is leaking.

3. Check whether both ends of the air hose are securely 

connected.

4. Check whether the item that is being inflated is leaking.
1. Check whether the air compressor's battery level is 

sufficient.

2. Check whether the current tire pressure exceeds the 

preset one.

Solution

Failure to increase or 

decrease the preset 

pressure

Make sure the air compressor is set to the correct mode. 

Select the free mode with no icon ON to adjust the 

preset value within a range of 3 - 150 psi.

Normal inflation but 

the pressure displays zero

The pressure of low-pressure inflatables including 

balloons is too low to be measured.

Air compressor power-off 

after connecting the air 

hose to a valve

Press and hold the “Power/start-stop key” button to 

power on the air compressor again.

Make sure the air hose is securely connected.

Air leakage when 

connecting the air hose

The voltage from USB connector is abnormal. Please use a 

5V charger.

Different color of the 

battery level indicator when 

inflating and on standby

The lithium battery's voltage level significantly drops when 

discharging power, causing the battery level indicator to 

have a different color when inflating compared with 

standby state. This is normal.

29

Summary of Contents for QWCQB001

Page 1: ...User Manual for HOTO Portable Electric Air Compressor 16 Scan the WeChat code and pay 1 cent to extend the product warranty...

Page 2: ...to protect your hearing The air compressor and air hose will get very hot after running for a long time Please cool it before use again This appliance can be used by children aged from 8 years and ab...

Page 3: ...17 Battery indicator Accessories Schraderairhose 1 Prestavalve 1 Schradervalve Adaptingvalve 1 Needlevalveadapter 1 Type Cchargingcable 1 Storagepouch 1 psi bar psi bar 9 Airhose...

Page 4: ...USB charger sold separately to charge the HOTO Portable Electric Air Compressor Press the Power button for two seconds and the air compressor will start in ating automatically Short press again and th...

Page 5: ...ic bicycles motorcycles and cars will be equipped with a Schrader valve Prestavalveadapter In ate Unscrew the Presta valve connect the Presta valve for in ation After in ation screw on the valve De at...

Page 6: ...apter onto the Schrader valve and insert the needle into the air hole for in ation De ate Insert the needle valve adapter into the valve of the ball for de ation The needle valve adapter should be use...

Page 7: ...commended air pressure of tires for cars bicycles and motorcycles is indicated on the sidewall of the tire The recommended tire pressure for cars is also indicated on the driver s side door jamb For d...

Page 8: ...12 14 and 16 inch bicycle tires 20 22 and 24 inch bicycle tires 26 27 5 and 29 inch mountain bicycle tires 700c road bicycle clincher tires 700c road bicycle tubular tires Motorcycle and electric mot...

Page 9: ...i and bar No mode indicator ON User speci ed pressure presetting pressure value and unit will be saved Adjustable range 3 150psi Indicator ON in ball mode default 8psi Adjustable range 4 16psi Indicat...

Page 10: ...can also be stopped at any time while in ating by short pressing the Power key Stop In ating After selecting the scenario mode turn the Numeric Knob clockwise to and counterclockwise to to adjust the...

Page 11: ...not used for 3 minutes it will automatically power o Items such as balloons beach balls and swim rings cannot be automatically in ated because they have an air pressure requirement below the air compr...

Page 12: ...10 C or over 45 C Exposure to extreme heat or cold will shorten the air compressor s service life and damage the built in battery Leaving the air compressor unused for a long time may harm the battery...

Page 13: ...consequences to the environment and human health Please contact the installer or local authorities for more information about the location as well as terms and conditions of such collection points We...

Page 14: ...mits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipm...

Page 15: ...ctthefreemodewithnoiconONtoadjustthe presetvaluewithinarangeof3 150psi Normal in ation but the pressure displays zero Thepressureoflow pressurein atablesincluding balloonsistoolowtobemeasured Air comp...

Page 16: ...rage temperature 10 45 Dimensions of air hose air hose length including its valve adapter is 200 mm excluding thread 7 2 V Battery capacity 2500 mAh Operating noise level Less than 80dB at a distance...

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