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Restrict ed
Air
circulation
Cl ean t he c oil
Cl ean t he fil ter
Ch ange o r repa ir t he motor
Remo ve the o bst ructi on
Hi gh heating
load
W indows / doors wi de
ope n
Cl ose the w indow s / doo rs
Refrigerant
circuit
Refrigerant sho rt c harge
or refrigerant leakage
Ad d refri gera nt. Repa ir l eak age if detected
Repa ir c logging or replace faulty c om ponents
Rep lace c omp ress or
Satisfactor y op eration with temp eratur e differenc e of air
intake & disch arge of indoor un it 14°C to 20°C . *
( * value is for referenc e on ly )
Restriction e.g. at strainer,
capillary, filter dryer, etc.
Obstruction at air inlet / outlet
of indoor / outdoor unit
Fan motor malfunction
Indoor air filter dirty
Indoor / outdoor coil
dirty (clogged)
Insufficient heating
Compressor
Less or no compression
(Low running current)
Summary of Contents for A4MC 100ER
Page 1: ...Ceiling Concealed D Series ACC D2 2007 ACC 75 D DR ACC100 D DR Models ...
Page 50: ...48 Model AMC A4MC 75 100D ER Note All Dimension are in mm Outdoor Unit ...
Page 53: ...51 Model ACC 75 100D vs AMC A4MC 75 100D Cooling Only 10 WIRING DIAGRAMS ...
Page 54: ...52 Heat Pump Model ACC 75 100DR vs Model AMC A4MC 75 100ER ...