McQuay MWM Service Manual Book page 51

Seven Segment Display
Model
WMX 10 – 25G/GR
CKX 20 – 25A/AR
CKX 10 – 20C/CR
CEX 15 – 25E/ER
CCX 10 – 25C/CR
Cooling / Heat pump Model
Seven Segments
E1 blinking
E2 blinking
E3 blinking
E4 blinking
E5 blinking
E6 blinking
E7 blinking
E8 blinking
E9 blinking
Board
VA3.0
VA3.0
VA3.0
VA3.0
VA3.0
Faulty Indication
Indoor temperature sensor loose / short
Outdoor temperature sensor loose / short
Communication error
Compressor overload protection
Pump fault
Compressor overheat / gas leak
IPM / PFC / Partial switching
Outdoor over current
Indoor fan feedback error
Handset
SLM3
SLM3
SLM3
SLM3
SLM3
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