Problem
Possible cause
Solution
Safety valve(SV) is dripping .
Water expands when heated . If there
is no consumption of hot water over
a period of time pressure builds up,
causing the safety valve to open .
If drip from the SV is severe, it might
need to be replaced . Some dripping
is normal . Alternatively an expansion
vessel can be fitted .
Leak warning outlet is dripping .
The heating element may not be
properly tightened .
Check the heating element o-ring seal
and all connections .
There may be a leak .
Other problems, or if none of the above
solves the problem .
-
Contact the installer/supplier regarding
any other failure .
Incorrect handling of thermostat, safety valve or other valves may lead to tank rupture . When servicing the unit
follow instructions carefully:
•
Always turn off main power supply when water supply is being shut off .
•
Test the free operation of the safety valve regularly by opening the valve ensuring the water flows freely .
•
Electrical connection and all servicing of the electrical components should only be carried out by an authorized
electrician .
•
Fitting and all servicing of plumbing fixtures should only be carried out by an authorized installer .
•
When replacing the thermostat, safety valve or any other valve or part supplied with this unit, use only approved
parts of the same specification .
WARNING
•
Before resetting the safety cut-off or altering the thermostat setting, always remember to isolate the electrical
supply to the unit . This must be done prior to removing the electrical box lid .
•
If the electric element or thermostat is defective, contact authorized electrician .
•
After adjustments are completed, ensure the lid to the electrical box is refitted correctly and that the retaining
screw is properly fitted .
CAUTION
DHW tank
20
EHS MONO Kit-EU_IM_05388A-00_EN.indd 20
2015-03-18 오전 11:53:41
