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"Fan mode" in an old dehumidifier usually means that the refrigeration charge has been lost. They (almost universally) do not have service ports, but you can c

"Fan mode" in an old dehumidifier usually means that the refrigeration charge has been lost. They (almost universally) do not have service ports, but you can charge them using a bullet piercing valve (search for Supco BPV31) and restore functionality.

jandrese 3y ago
Of course if it is prone to catching fire randomly it would make more sense to take the rebate and buy a good one instead of trying to recharge the old leaky fire hazard.