Trail Running/Maintenance; Trail Running; Important Notices For Repair; Troubleshooting - HTW OBI Serie Manual De Usuario E Instalacion

Trial running
Trial running should be carried out by authorized professionals.
Please check the following items:
Is the heater connected and installed according to the specifi-

cations provided by the manufacturer?
Do indications of the power panel of the heater accord with the

actual installation conditions?
Are the air intake and the exhaust pipe correctly installed?

Does the heater accord with the relevant requirements of

ventilation? Is the channel of the air intake still not sealed?
Trial running
Open the battery compartment and put two batteries in (LR20, 1.5V).

Turn on the hot water faucet and wait for the water to flow out,

and then turn it off.
Turn on the gas switch.

Turn the energy rectifier to the maximum energy.

Turn on the hot water faucet.

Check the flame current
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Check the trial running of nozzle according to the nozzle table.

Please give instructions to users for the running and operation

of the heater.
Important notices for repair and maintenance
All the repair and maintenance must be carried out by authorized
technicians. The maintenance of the water heater must be fulfilled
at least once a year. It is recommended to carry out the mainten-
ance after a period of heating operation. The maintenance and repair
must be kept in record. Before cleaning or maintenance and repair,
please take off battery from the water heater and turn down the gas
switch. Only the original spare parts for maintenance can be used.
If the spare parts used for maintenance are not original, the man
ufacturer does not assume any quality guarantee. The connecting
pieces must be new.

Troubleshooting

No flame
Low water tempera ture
During the operation of the
wate r hea ter, flame goes out
If there is any failure, please make contact with the correspondin g technical service department or an installer!
Trial running / Repair and Maintenance
Different types of gases as fu el
Air in the gas feeding
The battery is null or placed in wrong
direction
No ho t water
The gas va lve is not completely on
The exhaust system is blocke d
When the water pressure is too low, the
rectifier of water pre ssure will be
discon nected from the water heater
Open the casing
Before maintenance and repair, please open the casing.
Screw off the two bolts on the casing (at the lower part/ back

of ca sing).
Take out the operation button.

Take off slipcover at th e lower part o f the casing g ently: press

it upwards and then tak e it off forwards.
Carrying out the following works of maintenan ce and re pair:
Check whether the op eration of exhaust system is in the

perfect state?
Demoun t the burner a nd close the gas outpu t in the case of

no operation of the wate r heater. Plea se c lean burner a nd the
gas nozzle with a brush and a vacuum cleaner.
Cle an heat exchanger with a brush and a vacuum cleaner.

Remoun t the burner.

Check whether the ignition electrode and the controller are

intact? If damaged, plea se replace them with the new ones.
Check whether the distance between the ign ition electrode

and surface of fuel is re ason able. This distance should be
between 3mm and 5 mm.
Check whether the ignition, operation and dis connection of

the heater are in perfect state.
Check whether the ga s connection and the n ozzle pre ssure

under rated lo ad are normal.
Check the tightne ss of the water an d gas.

Check whether operation o f the security device is normal.

Check whether all the operation performance is in normal

state.
Check whether there is an y gas leakage with a soapy solution

at gas joint.
Mou nt the casing and clean it with a wet rag and soapy water.

Maintenance and repair of butane facility
If a hosepipe is used to connect the gas, please replace
it with a n ew hose pipe once a year.
Open the gas valve
For connection with use of butan e:
Check the gas cylinder, if necessary, plea se replace
it with a new one.
Close and open the distributor for several times
Please ch eck the polarity of the batteries, if neces-
sary, please re place the m with new ones.
Open the distributor of hot water
Open the gas valve completely
Check wh ether the exhaust pipe is fluent or not
Reduce some energy and check the connecting sta te
of water
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