Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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HVAC System Symptom Diagnosis

HVAC System Symptom Diagnosis

HVAC System Symptom Diagnosis 1:

HVAC System Symptom Diagnosis 2:

Abnormal Noise from A/C Compressor

Abnormal Noise From A/C Compressor:

Abnormal Noise from Magnetic Clutch

Abnormal Noise From Magnetic Clutch:

Abnormal Noise from Tubing

Abnormal Noise From Tubing:

Abnormal Noise from Condenser Assembly

Abnormal Noise From Condenser Assembly:

Abnormal Noise from Evaporator

Abnormal Noise From Evaporator:

Abnormal Noise from Blower Motor

Abnormal Noise From Blower Motor: