Daikin DZ17VSA481AA - Heating Analysis Chart

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heatIng analySIS chart
POSSIBLE CAUSE
X IN ANALYSIS GUIDE INDICATE
“POSSIBLE CAUSE”
Comp discharge temp > 200F Comp discharge temp < 105F Comp discharge SH > 72F Comp discharge SH < 20F High pressure > 490psi High pressure SSV < 270psi High pressure LSV < 270psi LSV SC > 12F LSV SC < 4F Low pressure < 40psi Requested % demand < Actual % Requested % demand > Actual % Repeated stop/start Weak heating No switch heating Noise Incomplete defrost operation Stop operation Sweating liquid line
Liquid stop valve does not fully open
X X X X X X X X X X
Gas stop valve does not fully open
X X X X X X X X X
Line set restriction
X X X X X X X X X X
Line set length is too long
X X X
Blocked lter-dryer
X X X X X X X X X X
OD EEV coil failure
X X X X X X X X X X X X X X X X
OD EEV failure
X X X X X X X X X X X X X X X X
ID EEV coil failure
X X X X X X X X X X X X X
ID EEV failure
X X X X X X X X X X X X X
Check valve failure – Leakage
X X X X X X X
High Pressure switch failure
X
Pressure sensor failure
X X X X X X X X X X X X
Suction temp sensor failure
X X X X X X X X X X X X
Discharge temp sensor failure
X X X X X X X X X
Coil temp sensor failure
X X X X X X
Defrost sensor failure
X X X X X X
Liquid temp sensor failure
X X X X
Ambient temp sensor failure
X X X X X X X
OD recirculation
X X X X X X X X
ID recirculation
X X X X X X
Dirty OD Heat-exchanger
X X X X X X X X
Dirty ID Heat-exchanger
X X X X X X
Outdoor Ambient temp is too high
X X X X X X
Outdoor Ambient temp is too low
X X X X X X X X X X
ID suction temp is too high
X X X X X
ID suction temp is too low
X X X
Mixture of non-condensible gas
X X X X X X X X
OD fan motor failure
X X X X X X X
RV failure
X X X X X X X X X
RV coil failure
X X X X X X
Over charge
X X X X X X X X X
Under charge
X X X X X X X X X X
Leak
X X X X X X X X X X
ID failure
X X X X X X X X X X X X X X X X X X
OD Control Board failure
X
Compressor failure
X X X X X X X X X X X X
Cooling loop is not attached
X X X
Cooling loop grease is not enough
X X X
Low ID CFM
X X X X X X X
Outdoor Normal Temperature Operating Range for Heating Analysis: 17 - 62°F / Indoor Normal Temperature Operating Range: 65 - 85°F