Vaillant geoTHERM VWS, Operating Manual

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Operating Manual geoTHERM VWS/VWW 0020051578_01
Fault
code
Error text/description
Emergency
mode
63
only
VWW No ground water flow
Error 23 has occurred three times in a
row
possible
72 Flow temperature too high for under-
floor heating
Flow temperature is for 15 min. higher
than a set value (max. HK temp. +
compr. hyst 2 K).
_
81 Coolant pressure too high
Error 27 has occurred three times in a
row
possible
83 Coolant pressure too low. Check heat
source
Error 28 has occurred three times in a
row
possible
84 Coolant pressure outside the range
Error 29 has occurred three times in a
row
possible
90 Heating system pressure too low
Pressure <0.5 bar
Heat pump shuts down and goes into
operation automatically when the pres-
sure rises above 0.7 bar
_
Table 5.7 Fault-induced shutdown (contd.)
• Consult your expert technician about doing this.
h Note!
Only an expert technician can remedy
the fault and reset the error code.
Once the expert technician has remedied the error and
reset the error he can restart the heat pump.
6 Warranty and customer service
6.1 Vaillant warranty
Vaillant provide a full parts and labour warranty for this
appliance.
The appliance must be installed by a suitably competent
person in accordance with the Gas Safety
(Installation and Use) Regulations 1998, and the manu-
facturer’s instructions. In the UK ‘CORGI’ registered in-
stallers undertake the work in compliance with safe and
satisfactory standards.
All unvented domestic hot water cylinders must be in-
stalled by a competent person to the prevailing building
regulations at the time of installation (G3).
Terms and conditions apply to the warranty, details of
which can be found on the warranty registration card in-
cluded with this appliance.
Failure to install and commission this appliance in com-
pliance with the manufacturer’s instructions may invali-
date the warranty (this does not affect the customer’s
statutory rights).
6.3 Vaillant Service
To ensure regular servicing, it is strongly recommended
that arrangements are made for a Maintenance
Agreement. Please contact Vaillant Service Solutions
(0870 6060 777) for further details.
Operation 5
Warranty and customer service 6
GB