Maintenance - Hyundai H-SWE1-30V-UI065 Instruction Manual

12.
Placement of the thermostatic controller knob to the ECO position selects the mode, which cor-
responds to the most comfortable water heating temperature in the water heater (+58°C (±2°C))
and most efficient electrical energy consumption. To switch off the water heater, place the ther-
mostat knob to the leftmost position and disconnect the water heater from the electrical mains.

MAINTENANCE

Check the electrical plug and socket as often as possible. Secure electrical contact and proper
EN
grounding shall be assured. The plug and socket shall not heat up abnormally.
If the water heater is not used for a long period, especially in regions with low ambient tempera-
tures (below 0°C), water shall be drained from the water heater in order to prevent its damage
(due to water freezing in the internal tank).
To ensure reliable operation of the water heater for a long time, periodically clean the internal
tank and remove deposits from the electrical heating elements of the water heater. In addition,
periodically check condition of the magnesium anode (whether it is fully dissolved or not) for
its timely replacement with a new one in case of full dissolution. The tank cleaning frequency
depends on local water hardness.
Cleaning shall be carried out by specialized service departments. The address of the nearest
service center can be obtained from the vendor or at www.hyundai-hvac.com. Preventive mainte-
nance operations shall be carried out with strict observation of the instruction manual and safety
rules.
The water heater is equipped with a thermal switch, which will cut off supply of electrical energy
to the electrical heating element in the event of water overheating/absence in the water heater.
If the water heater is switched on, but water is not heated, this means tripping or need for
reset of the thermal switch. To return the water heater to the operational condition, proceed as
follows:
- disconnect the water heater from power supply and remove the molding of the bottom cover;
- press the button at the center of the thermal switch until the button clicks;
- if the button is not pressed and there is no click, wait until the thermal switch cools down to the
initial temperature.
CAUTION!
During heating, water may begin to drip from the port of the pressure
safety valve. Water leakage cannot be avoided and shall not be prevented,
since blocking of the valve may result in rupture of the internal tank (in
case of equipment breakdown).
CAUTION!
Refer to «Water heater safe operation and installation rules»
CAUTION!
The manufacturer provides an extended warranty, when preventive main-
tenance operations are carried out (refer to the warranty card).
Electrical instant water heater