www.timberk.com • electrical instant water heater
16
not enabled. To return the water heater to operating mode, the button at
temperature switch shall be pressed. Proceed as follows:
- Switch off the power supply to water heater, remove the front panel, press
the black button located in the central part of temperature switch till it clicks;
the temperature switch is located at water heater flask.
- Unscrew the cold water feed hose from the water heater, remove the
coarse strainer and flush it under a jet of flowing water.
- Restore the inlet connections in the reverse sequence.
IMPORTANT!
If these activities have not resulted in any positive
outcome or temperature switch trips out repeatedly
within a short period of time, switch off power
supply to water heater, close water supply to water
heater and address the Authorized Timberk Service
Center located at your region to receive any advice
or maintenance. For the address of the Authorized
Service Center, please, consult with the seller or visit
our web-site at www.timberk.com.
9. MAINTENANCE
During use of the water heater, scale may appear in nozzle openings of
the shower spout. This reduces efficiency of heating, deteriorates water
spraying, and increases water pressure in the heating vessel. For prevention
of such phenomena, it is necessary to periodically clean the nozzle using
household chemical agents and soft brushes. Do not use abrasive cleaning
substances and inappropriate chemical agents.
a) Outer care:
- Switch off the appliance and allow it to fully cool down.
- Clean the outer surface of the appliance enclosure using a slightly
moistened soft cloth and then wipe it dry. Do not use abrasive cleaning
substances.
b) Filter cleaning:
If water flow rate from the heater decreases, it is necessary to clean the
coarse filter installed at the cold water inlet to the water heater. Use the
following procedure:
- Switch off the appliance and allow it to fully cool down.
- Shut off cold water feeding.
10. TROUBLESHOOTING
Table 4
Possible malfunctions and methods of their elimination
Problem
Possible causes
Troubleshooting method
Power supply indicator does not light
up when power is switched on
1. No power
1. Check that electric power supply
is connected
2. Temperature limiting device –
temperature switch has tripped out or
was not enabled
2. Enable temperature switch
3. Defective printed circuit board
3. Address the maintenance expert of
Timberk Service Center
4. Current leakage
Indicating heating lamp does not light
up, water is not heated
1. Insufficient water flow
1. Insufficient water flow
2. Temperature limiting device actuated
2. Wait till the temperature limiting
device cools down and operates (for
Watermaster I Series)
3. Too low pressure at water supply
system
3. Switch on the temperature switch
(for Watermaster II Series)
4. Wait till normal water pressure
builds up in the system
Water is not running from hot water
outlet tap
1. Water temperature control system
is damaged
1. Wait till water supply in the water
supply system is restored
2. Cold water inlet tap is closed
2. Open the cold water inlet tap
Water leakage
Problem with leak tightness of
connections
Restore leak tightness of connections
Water at the outlet from water heater is
sometimes hot, sometimes cold
1. Unstable water pressure
1. Use water heater as soon as water
pressure stabilizes
2. Temperature of water at the
outlet from water heater is too high,
overheating protection trips repeatedly
2. Reduce heating capacity, increase
water flow
The heating indicator «Power»
continues glowing, while the water inlet
valve is closed
Malfunction of water flow sensor
Address the maintenance expert of
Timberk Service Center
Summary of Contents for WHE 12
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