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RHSXB04P30D
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Daikin RHSXB04P30D — инструкции по установке и обслуживанию тепловых насосов [44/68]

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

E198 FLS flow sensor,

3-way switch valve 3UVB1

Flow measurement not plausible Error occurs when 3UVB1 3-way switch valve is in

the bypass position, the internal circulation pump is

running but too low a volumetric flow is measured.

Required minimum water flow rate:

▪ "Heating" operating mode: 600l/h

▪ "Cooling" operating mode: 840l/h

▪ Automatic thawing function active: 1020l/h

▪ Air in heating system.

▪ Vent.

▪ Internal circulation pump is not running.

▪ Check electrical connection and controller set-

tings. If the circulation pump is defective, re-

place it.

▪ FLS flow sensor dirty, clogged.

▪ Check, clean.

▪ FLS flow sensor defective.

▪ 3UVB1 3-way switch valve drive defective.

▪ Check, replace.

E200 Electrical components Communication fault Communication between the RoCon BM2C and

A1P printed circuit board lost.

▪ Wiring or connections, poor contact.

▪ Check, replace

E8005 Pressure sensor DS Water pressure in heating system too low Water pressure has fallen below permissible min-

imum value.

▪ Insufficient water in the heating system.

▪ Check the heating system for leaks, top up wa-

ter.

▪ Pressure sensor DS defective.

▪ Check, replace.

E8006 Pressure sensor DS Pressure drop in heating system too high Pressure drop too fast.

▪ Check the heating system for leaks.

▪ Pressure sensor DS defective.

▪ Check, replace.

E8007 Pressure sensor DS Water pressure in heating system too high Water pressure has exceeded the permissible max-

imum value.

▪ Too much water in the heating system.

▪ Drain water.

▪ Pressure sensor DS defective.

▪ Check, replace.

E8100 Electrical components Communication Initialisation after heat pump start failed.

Printed circuit board A1P defective.

▪ Check, replace.

E9000 Temporary internal message Not relevant for proper system operation.

E9001 Return flow temperature

sensor t

Return flow temperature sensor error Sensor or connecting cable defective.

▪ Check, replace.

E9002 Feed temperature sensor

or t

V, BH

Inflow temperature sensor error Sensor or connecting cable defective.

▪ Check, replace.

E9003 Frost protection function

fault

Plate heat exchanger (PWT) Measured value t

<0°C

▪ Failure of the frost protection function for the plate

heat exchanger because the water flow is too low.

See fault code E9004 / 7H.

▪ Failure of the frost protection function for the plate

heat exchanger because there is a lack of refri-

gerant in the system. See fault code E9015 / E4.

Daikin RHSXB04P30D — инструкции по установке и обслуживанию тепловых насосов [44/68]

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