Glow-worm Clearly Heat Pumps 5kW - Manual (Page 25)

0020096879_01 - 06/10 - Glow-worm
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MAINTENANCE
Status Description
34 Degassing of pump (20s OFF).
35
Failure of current to the motor’s electronic expansion valve
(blocking failure).
36
The 4-way cycle inversion valve is in the cooling position for
5 seconds.
37
Failure of compressor output temperature: does not surpass
2K upon start-up of compressor (blocking failure after 3
attempts).
38 Fan failure, speed too low (blocking failure after 3 attempts).
i
The status’ described in the table below must
be dealt with by a qualified professional and, if
necessary, by the after-sales service.
Status Description Cause Solution
24
Poor flow in the brine circuit
following the pre-scan of
brine circuit pump
(D < 500 l/h).
The brine circuit flow is too low.
Force the pump and check the flow.
Adjust the water flow by changing the speed of the pump or
opening the hydraulic module control valve.
The brine circuit flow is too high or there
is a faulty indication of flow.
Check that there is no water flow by closing a valve in the brine
circuit. Force the pump and check the flow.
The water pump is defective.
Is the water pump hot? Measure the coil resistance. Replace the
pump motor.
Check the 230 V power supply to the pump.
Change the electrical panel.
Check the reading of the water flow when stopping the pump.
There is a lack of water.
Check the brine circuit. If the valve leaks, replace the valve, add
water and degas the circuit.
Anti-silt filter missing or clogged in the
brine water circuit’s backflow.
Install an anti-silt filter.
Clean the anti-silt filter.
The circuit was not properly bled
Activate the bleeding function and top up the glycol water if
necessary.
The expansion vessel is defective.
Check the pressure of the expansion vessel.
Reinflate the expansion vessel. Replace the expansion vessel.
26
Brine circuit return
temperature too high (>42°C
in heating and >34°C in
cooling).
La température du circuit pompe à
chaleur est trop élevée.
Vérifiez le circuit pompe à chaleur et le circuit chaudière.
Il y a une mauvaise lecture de la
température.
Vérifiez les connexions du capteur. Vérifiez que la position et le
fonctionnement du capteur sont corrects.
Vérifiez la résistance du capteur.
39
Waiting following pre-scan
of return temperature (<42°C
in heating and <34°C in
cooling).
Il y a une mauvaise indication du débit
d'eau.
Vérifiez qu'il n'y a pas de débit d'eau en fermant une vanne sur le
circuit pompe à chaleur. Forcez la pompe et vérifiez le débit.
32
Air temperature incompatible
with the start-up of heat
pump (between -7 and 25°C
in heating, and between 18
and 48°C in cooling).
The air temperature is too low or too
high.
Check the outside temperature.
Move the heat pump.
Incorrect temperature reading.
Check the sensor’s connections. Check that the position and the
operation of the sensor are correct.
Check the sensor’s resistance.
Status Description
39
Wait after pre-sweep of a return temperature (refer to the
following table for details of this status).
40 Flow rate fault (blocking fault after 3 attempts).
41
Compressor outlet temperature fault (> 105°C) (10min
temporary block).
42 De-icing request while reheating water tank.
43
In cooling mode, return temperature too high (> 47°C) (10
min temporary block)
16 Servicing
To ensure the continued efficient and safe operation of the
appliance it is recommended that it is checked and serviced as
necessary at regular intervals. The frequency of servicing will
depend upon the particular installation conditions and usage.
• Servicing/maintenance should be carried out by a competent
person approved at the time by the Health and Safety
Executive in accordance with the rules in force in the
countries of destination.
• To obtain service, please call your installer or Glow-worm’s
own service organisation.