VESTEL WATER HEATER SERVICE MANUAL
VESTEL BEYAZ EŞYA A.Ş. (Air Conditioning Quality Assurance Department)
Page
24
SAFETY VALVE LEAKING WATER
LIMIT THERMOSTAT TRIPS FREQUENTLY
Connect a manometer to water
outlet pipe of the appliance and
measure drum pressure. Is the
pressure over 8 bar?
No
Yes
Replace the safety valve
Cut 5 cm of chrome hot water pipe
and reinstall. Does the problem
persist?
No
Yes
Fault is fixed. No need for
further actions.
Mains water system pressure is
too high. Recommend pressure
reduction regulators for the
safety of the customer and the
appliance.
Is the water drawn from the device
over 90°C ?
No
Yes
Remove heating coil
from drum. Does the
sensor slot that limit
thermostat bulb is
inserted contact the
end of heating coil?
Yes
Remove
heating coil
slot from
sensor slot and
reinstall.
No
Replace limit
thermostat.
Remove sensor from control card
and perform measurements. Is there
any deviation in sensor values?
Yes
Replace
Sensor.
Thermostat is faulty, replace it.
No