Honeywell Home resideo EW701, Operating And Installation Instructions

Page: 60 / 223

V1.00 / 3.5.2018 MU2H-0501ge23 R1020 59 EN
Error messages
Error display Error description Measures/notes
• Hardware error or
damaged fi rmware
• Supply flow sensor
broken
• Supply flow sensor
short-circuit
• Return flow sensor
broken
• Return flow sensor
short-circuit
• Check flow sensor, connection
cable and calculator unit for external
damage
• Device must be replaced
• Check temperature sensor and pipes
for mechanical damage
• Device must be replaced
• Check temperature sensor and pipes
for mechanical damage
• Device must be replaced
• Check temperature sensor and pipes
for mechanical damage
• Device must be replaced
• Check temperature sensor and pipes
for mechanical damage
• Device must be replaced
Error messages with module in place
Error display Error description Measures/notes
• Add-on module has
been paired with
another metering
device before
• The module has the
measuring data of
another meter
• Low power
(radio add-on module)
• Radio add-on module
not initialised (clock
wrong)
• Save data, since these are overwrit-
ten after a short time
• Press any key to delete the display
• After deletion the new add-on mod-
ule will be accepted
• Maximum operating duration expired
• Add-on module must be replaced
• Add-on module must be replaced
Fault messages with the ultrasonic measurement system
Error display Error description Measures/notes
• Air in the measure-
ment section
• No correct ultrasonic
measurement signal
• Vent pipework