Answer:
Holes and Tears
Check your inflatable for holes or tears. Even the slightest hole will release air and disallow inflation. Storing the inflatable for a long amount of time might create weak spots from being creased while folded.
Broken Nozzle
Inspect the inflation nozzle. While in storage for a long time, this device could seize shut and not allow air to pass through the hole. It could also have been damaged under heavy or falling objects while in storage.
Too Cold
Check the temperature of the air you're adding to the inflatable. This is especially important during winter months. The inflatable will not stay inflated in temperatures under 32 degrees.
Bad Wiring
Examine the wiring of the air compressor that comes with the inflatable. After a long time in storage, the wiring could become brittle. Also, mice or other vermin could have chewed the wiring. This prevents the device from working correctly.
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