Tilia Termoventiler ThermOmatic ERA 10, Installation And User Instructions Manual

Page: 7 / 8

Termoventiler AB
7
Fault
Motor is in open or closed
end position but the mixing
valve spindle is not turning.
Dial for mixing valve is in
depressed position. Turn the large dial until the dial pops out to
operating position.
Motor makes a noise in end
position.
See above See above
Network light blinks
every two seconds.
Fault in flowpipe sensor or
wiring to it.
Check that wiring is not damaged or poor
contact at connection.
Measure the resistance at the free end of
Thermomatic ERA. It should be 48 kOhm at
20°C room temperature when room sensor dial is
at 5°C and 38 kOhm when sensor dial is set at
15°C.
Network light
blinks every four
seconds. Fault in room sensor, wiring
or the connection.
Check wiring is not broken and connected
correctly.
Measure resistance with separate sensor.
At +25°C it should be 50 kOhm and at 50°C it
should be 20 kOhm.
Mixing valve gives out heat
even though Thermomatic
ERA is in fully closed
position. Motor closed position and
mixing valve 0 position
not synchronised. Remove motor from mixing valve. Set mixing
valve to 0. Re-attach motor fully closed.
Motor will only open or
close.
Wrong direction of
movement. Change motor’s direction of movement.
See page 4 for instructions.
Motor is not opening far
enough even though
house is not warm.
Max setting set too low. Increase max setting.
Mixing valve does not
open even though house
is cold. Flow pipe sensor mounted
on hot water pipe. Move sensor to flow pipe.
Motor shunts between
open and closed. Sensor is located too far from
bypass valve or contact with
pipe is poor. Move sensor closer to bypass valve. Tighten
sensor so contact is better.
Network light blinks
rapidly 3 times followed
by a longer blink
Fault in both flow and room
sensors. Fault trace as per two points above.
Action Probable Cause
Mixing valve is closing flow
port instead of hot water
port. Position the mixing valve spindle such that
it closes the hot water port when motor is
in closed position. The house does not get
warm.