Troubleshooting; General Guidelines; General Symptoms; Error Codes - Rotex RKBUHAA6V3 Manual De Instalación Y Funcionamiento

T
ROUBLESHOOTING
This section provides useful information for diagnosing and
correcting certain troubles which may occur in the heater kit.
This troubleshooting and related corrective actions may only be
carried out by your local Rotex technician.

General guidelines

Before starting the troubleshooting procedure, carry out a thorough
visual inspection of the heater kit and look for obvious defects such
as loose connections or defective wiring.
WARNING
Before carrying out any maintenace or repair activity,
always switch off the circuit breaker on the supply
panel or remove the fuses.
Do not touch water pipes during and immediately after
operation as the pipes may be hot. Your hands may
suffer burns. To avoid injury, give the piping time to
return to normal temperature or be sure to wear
proper gloves.
Do not touch internal parts during and immediately
after operation. Your hands may suffer burns. To avoid
injury, give the piping time to return to normal
temperature or be sure to wear proper gloves.
When a safety device was activated, stop the heater kit and find out
why the safety device was activated before resetting it. Under no
circumstances safety devices may be bridged or changed to a value
other than the factory setting. If the cause of the problem can not be
found, call your local dealer
.

General symptoms

Symptom 1: Space heating capacity shortage at low outdoor
temperatures
P
OSSIBLE CAUSES
The heater kit is not activated.
The over current fuse has operated.
The thermal protector has operated.
The thermal fuse has operated.
There is air in the system.
Broken contactor.
RKBUHAA6V3+W1
Heater kit for air to water heat pump system
4PW58904-1
C
ORRECTIVE ACTION
Check that the "heater kit operation
status" field setting [6-02] is turned
on, see "Field settings" in the
operation manual of the indoor unit.
Check and switch over current fuse
back on.
Check and reset the thermal
protector by pushing the button.
Check if the thermal fuse is open.
Purge air.
Check contactors and relays by use
of an ohmmeter.

Error codes

When a safety device is activated, the user interface LED will be
flashing, and an error code will be displayed.
A list of all errors and corrective actions can be found in the table
below.
For more details regarding error codes, refer to chapter "Error codes"
in the installation manual of the indoor unit.
Error
code Failure cause
Heater kit thermal protector or
AA
thermal fuse error
Heater kit connected to the
benefit kWh rate power supply
T
ECHNICAL SPECIFICATIONS
Heater capacity
• step 1
• step 2
Dimensions H x W x D
Weight
Connections
• water inlet
• water outlet
Maximum water pressure
Power supply
• Phase
• Frequency
• Voltage range
Minimum
Maximum
• Voltage tolerance
• Maximum running current
• Recommended field fuse
D
ISPOSAL REQUIREMENTS
Dismantling of the unit, treatment of the refrigerant, of oil and of other
parts must be done in accordance with the applicable legislation.
Your product is marked with this symbol. This means that
electrical and electronic products shall not be mixed with
unsorted household waste.
Do not try to dismantle the system yourself: the dismantling of the
system, treatment of the refrigerant, of oil and other parts must be
done by a qualified installer in accordance with the applicable
legislation.
Units must be treated at a specialized treatment facility for re-use,
recycling and recovery. By ensuring this product is disposed off
correctly, you will help to prevent potential negative consequences for
the environment and human health. Please contact the installer or
local authority for more information.
Corrective action
• Make sure the circuit is filled
with water (no air inside).
• Make sure waterflow is
possible (open all valves in the
circuit).
Make sure the heater kit is
connected to a normal power
supply.
V3 W1
3 2
(kW)
(kW) 6 6
(mm) 575 x 415 x 170
(kg) 12
G 1"1/4 (male)
G 1"1/4 (female)
(bar) 3
1~ 3N~
(Hz) 50
220 380
(V)
(V)
240 415
–10%/+6%
(A) 26.1 8.7
(A) 32 16
Installation and operation manual
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