Unique Gas Products Unique 8 UGP 7.8, Owner'S Manual

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6.5 The igniter
The igniter (B5) is the piezoelectric type, which causes a
high-voltage spark to jump between the electrode (G3)
and the burner (G2). If it fails to operate, the fault may
lay within the gamut of wellknown automotive spark plug
problems, i.e. from too great a distance between
electrode and burner, to creepage or poor electric
contact. If such problems can be ruled out, the igniter
should be exchanged.
Do not put the igniter in place (B5) before
checking for the existence of leakage.
6.6 The flue tube (Fig. H)
The burner is located beneath the flue tube (H4).
There is a baffle (H5) in the tube to improve heat transfer
of the combustion gases, and also a choke (H3) to limit
the excess air passing trough the flue tube.
The assembly (H2) is supported at the upper edge of the
flue tube. Fitting over it is the flue extension (H1),
fastened to the cooling unit.
7. Periodic maintenance and
trouble-shooting
To maintain your Refrigerator safe and efficient we
recommend you to carry out a simple program of
preventive maintenance. This routine should be
applied at least twice a year, preferably before a
season of continued use and specially if the
Refrigerator has been closed down for some time.
During and after the maintenance service keep
appliance area clear and free from combustible
materials, gasoline and other flammable vapors and
liquids. Also keep the flow of combustion and
ventilation air unobstructed.
Only allow qualified personnel to serve the
product. For assistance, consult your dealer.
7.1 Checking the doors
First check the doors for unobstructed opening and
closing, then check the magnetic seals. These should be
clean, free from cracks or distortion, and sealing all the
way round their contour. Otherwise, let your dealer
replace them or adjust the door hinges.
7.2 Cleaning the parts at the rear of the
Refrigerator
Move the Refrigerator away from its permanent position,
making sure the flexible connector does not kink.
Dust that gathers behind the Refrigerator may clog the
burner. Dust building up on the absorber (C10) and
condenser (C1) of the cooling unit can lessen the heat
transfer of these parts, impairing performance.
Therefore, as a first step, remove the dust from the
Refrigerator and the enclosure. Use a paintbrush to
clean the condenser.
Check the tube (C11) for wetness and/or rust.
This would be a sign that you are or have been
operating the Refrigerator, with the thermostat at an
excessively cold setting, which only increases gas
consumption but does not improve the performance.
7.3 Device for drying up defrost water
This device comprises the drip pan (D2) beneath the
evaporator, the drain to the rear of the refrigerator, and
the water channel (C4) between the drain and the
containers (C5). Clean the drain and the water channel
by using, for example, a thin rod with a wad of cotton
wool. If necessary, remove and clean the water
containers. When reinstalling, note they are offset 180
degrees to one another.
7.4 The burner
Disassemble the burner box (C8) and proceed as
follows:
•
Clean the port (G5) and the mesh (G2) of the burner
head with a suitable brush.
•
If might be necessary to disassemble (G5) from the
burner or even the burner from the cooling unit and
blow back lint with a jet of air through the wire mesh.
•
Clean and inspect the electrode (G3) and the
thermocouple (G1). Replace if corroded. Check the
attachment of these parts and tighten as required.
•
Check the spark of the piezo-igniter.
Also check the cable to the electrode (G6).
•
Clean the light conductor (E7) and the reflector in (C8)
with a soft cloth.
7.5. Cleaning the flue tube (Fig. H)
•
Cover the burner with a cloth. Loosen and remove the
flue extension (H1).
•
Remove the baffle assembly (H2).
Clean and inspect this assembly.
Manual 326061824 11/9/06 3:36 PM Page 18