What to do if the compressor of my Bosch LV015 Heat Pump doesn't work but the fan runs and there is a freeze fault caused by low refrigerant?
If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a freeze fault in the air coil caused by low refrigerant. Check the refrigerant pressure with a gauge set.
Why is my Bosch LV015 compressor not running, but the fan is, possibly due to condensate drainage issues?
If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a condensate fault caused by poor drainage. Check the condensate pan for a high water level. Check the drain line for blockages, double trapping, or inadequate trapping.
How to troubleshoot a Bosch Heat Pump with no compressor operation but running fan, possibly due to blocked return air?
If your Bosch Heat Pump's compressor isn't running but the fan is, it could be due to a condensate fault caused by blocked return air. Check the condensate pan for a high water level. Also, check the air filter and return air duct work for blockage, and ensure there is adequate space between the return air opening and any obstructions.
Why is my Bosch LV015 causing high humidity?
If your Bosch Heat Pump exhibits high humidity, several factors could be the cause. First, high air flow may be the problem; in this case, consult the blower performance table and reduce fan speed if possible. Second, there might be a loss of refrigeration capacity, so check refrigerant pressures with a gauge set. Third, short cycling could be the reason; check unit performance against building load calculations. Finally, a poorly located thermostat can contribute to high humidity; ensure that the thermostat is not located near a supply air duct.
What to do if the compressor is not working but the fan runs on my Bosch Heat Pump, and it might be related to low pressure?
If your Bosch Heat Pump compressor isn't working but the fan is running, a low-pressure fault may be the cause. Make sure that the fan motor is operating properly. Check the air filter, inspect the air coil for dirt/debris, and check the duct work to ensure dampers are not closed or blocked. Also, low refrigerant could be the cause, so check the refrigerant pressure with a gauge set.
What to do if the compressor is not working but the fan runs on my Bosch LV015 Heat Pump, and it might be related to a freeze fault?
If the compressor of your Bosch Heat Pump isn't working, but the fan is still running, it might be due to a freeze fault in the water coil. This could be caused by no or low water flow, so check the water valves and/or pumps for proper operation and inspect the water coil for blockages. Another cause might be low water temperature; check if the water temperature is below 40° entering. If the heat pump is connected to a closed loop with antifreeze, check that the 'FREEZE 1' resistor on the UPM board has been cut to set the unit to antifreeze mode. Also, low refrigerant may be the cause, so check refrigerant pressure with gauge set.
General| Refrigerant | R410A |
|---|---|
| Cooling Capacity | 5.0 kW |
| Sound Level | 45 dB |
| Heating Capacity | 16, 000 BTU/h |
| Noise Level (Outdoor Unit) | 45 dB |
| Weight (Indoor Unit) | 12 kg |
| Weight (Outdoor Unit) | 35 kg |
| Dimensions (Indoor Unit) | 700 x 250 x 190 mm |
| Dimensions (Outdoor Unit) | 780 x 290 x 540 mm |
Provides critical safety information before installation and servicing.
Details on how to mount vertical and horizontal units, including vibration pads and pitching.
Procedures for installing the condensate drain line, including slope and trap requirements.
Instructions for wiring the high voltage power supply to the unit according to codes.
Lists safety features and UPM board functions like anti-short cycle and freeze protection.
Checklist of essential system checks before initial unit startup.
Steps for starting the unit in cooling/heating modes and verifying performance.
Diagnosing and resolving issues when the compressor doesn't run but the fan does.
Diagnosing freeze faults related to water flow or low refrigerant.
Diagnosing issues with condensate, low voltage, brown outs, and air coil freeze faults.
Addressing thermostat connection problems and reversing valve operation.
Diagnosing compressor faults, power supply problems, and control transformer issues.
Diagnosing issues with PSC fan motors, including faulty motors or relays.
Diagnosing ECM motor faults and problems with the unit not shifting into cooling.
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