AUX air conditioner service manual
5. The Step Motor Does Not Work
Items⑴
Check if ① the input voltage is correct?
Check if the step② motor controlling the up-down movement firmly connected to Cn2?
⑵Trouble shooting procedure
6. Heating Mode Can Work, But No Hot Air Blow
Check if the set temperature is lower than the indoor temperature?⑴
Check if the indoor PCB is connected to the ⑵ terminal correctly?
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