What to do if my Heat Controller HBH/V Compact Heat Pump shows No Fault Code Shown?
If no fault code is displayed, but the compressor isn't operating, refer to the 'Only fan operates' information. If there is a compressor overload, check it and replace if necessary. For a control board issue, reset the power and check operation.
General| Category | Heat Pump |
|---|---|
| Refrigerant | R32 |
| Noise Level (Indoor Unit) | 45 dB |
| Operating Temperature Range (Heating) | 24°C |
| Dimensions (Indoor Unit) | 300mm |
CXM Controller, safety switches, LED fault indication, anti-short cycle, random start.
DANGER, WARNING, CAUTION, NOTICE statements for safe installation and operation.
Indoor installation required, space for service, avoid freezing/humidity.
Indoor installation, space for service, avoid freezing/humidity.
Use 30°F [-1.1°C] setting for open loop; avoid freeze damage.
Connect incoming line voltage to L side of contactor, consult tables for fuse size.
Wire thermostat directly to CXM board using 18 AWG wire.
Locate on interior wall, away from drafts, secure back plate, wire thermostat to CXM.
Protects compressor, heat exchangers from damage due to operation outside design conditions.
Verify valves, wiring, transformer, temps, fan rotation, condensate line, air coil, controls.
Check voltage, disconnects, transformer, pump/valve operation.
Check water flow, temperature, charge, air filter, fan operation, external static.
Check charge, start-up water flow, filter, return air, thermostat.
Check water flow, antifreeze level, temperature limits, thermistor.
Check air filter, fan operation, external static, thermostat, thermistor.
Check drain, trap, drainage, moisture on sensor.
Check voltage, transformer tap, power supply.
Check air flow, water flow, compressor operation.
Check filter, airflow, static, water flow, charge, scaling, temperature.
Check water flow, temperature, charge, scaling.
Check water flow, air flow, charge, temperature.
Check airflow, water flow, temperature, charge.
Analyze refrigerant pressures and temperatures for heating operation.
Analyze refrigerant pressures and temperatures for cooling operation.
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