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Daikin RHSXB04P30D — инструкции по установке и обслуживанию тепловых насосов [45/68]

8 Faults and malfunctions

Installation and maintenance instructions

ROTEX HPSU compact Ultra RHSX(B)-D

Heat pump (indoor unit) with integrated heat accumulator

008.1444444_01 – 11/2018 – EN

Code Component/Designation Error Possible fault rectification

E9004 FLS flow sensor Flow rate error Water flow is too low or non-existent.

Required minimum flow rate: see Chap. 5

Check the following items:

▪ All stop valves of the water circuit must be com-

pletely open.

▪ Optional water filters must not be contaminated.

▪ Heating system must run within its operating

range.

▪ Heating system and internal circulation pump

must be completely vented.

▪ On the controller, check that sufficient water pres-

sure (>0.5bar) is available. [→Main menu →In-

formation → Overview →Psyst]

▪ Check the function of the 3-way switching valve

3UVB1: Compare the actual position of 3UVB1

with the indicated position [→Main menu →In-

formation → Overview →BPV].

▪ Does this fault occur during defrosting in room

heating or domestic hot water preparation operat-

ing mode? With optional backup heater: check its

power supply and fuses.

▪ Check the fuses (pump fuse (FU1) on the A1P

printed circuit board and PCB fuse(F1) on the

RoCon BM2C printed circuit board).

▪ Check the FLS flow sensor for soiling and func-

tion; clean, replace if necessary.

▪ Frost damage on the plate heat exchanger (out-

door unit)

E9005 Inflow temperature sensor

V, BH

Inflow temperature t

V, BH

>75°C Feed temperature of backup heater (t

V, BH

) is too

high.

▪ Inflow temperature sensor providing incorrect val-

ues. Temperature sensor or connecting cable de-

fective.

▪ Check, replace.

▪ Contact problem, A1P jumper on X3A.

E9006 Inflow temperature sensor

V, BH

Inflow temperature t

V, BH

>65°C

E9007 Circuit board A1P IG circuit board defective Communication between the heat pump outdoor

unit and heat pump indoor unit lost.

▪ Electromagnetic influences.

▪ Perform reset.

▪ Printed circuit board A1P defective.

▪ Replace A1P printed circuit board.

E9008 Temperature sensor (refri-

gerant fluid side) t

Refrigerant temperature outside the valid range No heat consumption at the plate heat exchanger.

▪ Check the flow rate.

▪ If the flow rate is OK, replace the refrigerant tem-

perature sensor.

E9009 Optional: STB backup

heater (BUxx)

STB fault Thermal contactor (STB) in the backup heater

(BUxx) has triggered.

▪ Check and unlock the position of the STB.

E9010 Jumper on A1P circuit

board

Jumper missing on the "X21A" connection socket of

the A1P circuit board.

▪ Install the jumper.

E9011 FLS flow sensor Flow sensor error FLS flow sensor defective.

▪ Replace the FLS flow sensor.

E9012 Refrigerant temperature

sensor

Refrigerant temperature sensor error Measured value outside the permissible value

range. Sensor or connecting cable defective.

▪ Check, replace.

E9013 Heat pump outdoor unit

main circuit board

AG circuit board defective

▪ Main circuit board in the heat pump outdoor unit

defective.

▪ Fan motor defective.

▪ Check, replace.

Daikin RHSXB04P30D — инструкции по установке и обслуживанию тепловых насосов [45/68]

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