Climatemaster - Code 5 / LT2 Fault - Cooling

ClimateMaster Heat Pump: Cooling

Re: Code 5 / LT2 Fault

Code 5 = Low Air Coil Temperature (FP2)


Qty Possible Causes:
4 Low Refrigerant Charge
1 Expansion Valve Underfeeding
Bad FP2 Sensor
Low Air Flow (Filter or Coil)
Low Air Flow (Fan Speed)

CHECKOUT:

1. Check Operating Conditions

► Be sure to re-connect the HWG pump before closing the unit.


2. Compare to Unit Performance Chart


3. Check FP2 Sensor



Article ID: 270
Last updated: 08 Feb, 2023
Revision: 24
Equipment -> GeoThermal -> Climatemaster -> TS/TT -> Diagnostics -> Climatemaster - Code 5 / LT2 Fault - Cooling
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