HB950/A
3-7
HINTS FOR REPAIRS
1. FLOOR PART (item 47)
- Remove the props (item 43) in the grip.
- Remove the covers (item 32 and 44).
The cover on the fl ex side can only be removed last.
2. REMOTE CONTROL (item 30)
- Detach the cord clamp at the back of the cord holder
and pull the connector loose.
3. WHEEL (item 35)
- Remove the covers (item 32,44).
- Remove the locking plate and the nearest frame screw.
- Push the shaft out of its clamping.
4. STAND LOWER PART (item 27)
- Put the appliance in the lowest operating position
(however, screw (A) must be visible) and tighten the
ornamental screw (item 26)
- Remove the covers from the fl oor part.
- Detach the 8-core cable so that the cable can easily
slide through the cable duct.
- Remove the shafts (B).
- Remove the 2 bearing bushes (item 28).
- Pull the 8-core cable out of the stand tube to the point
where the clamped joint between the cable bushing
and the protecting sleeve can be unlocked.
- Detach the 8-core cable by loosening the nut of the
bushing a quarter turn.
- Now turn the stand and the radiation units through so
far that the covers (item 14/16) rest on the fl oor.
- Remove screws (A) and separate the upper and lower
part of the stand.
5. STAND UPPER PART (item 22)
- Loosen the lower part of the stand as described
under .4.
- Hinge the radiation units outwards (the upper part of
the stand rests on the fl oor).
- Remove the housing parts and detach the wire
connections.
- The covers (item 14/16) can now be separated from
the hinge part.
WHEN A HOUSING AND COVER ARE
ASSEMBLED, SPECIAL ATTENTION SHOULD
BE PAID TO THE POSITIONING OF THE UPPER
BEARING BUSH (see exploded view).
6. HPA LAMP (item 6)
- Put the appliance in operating position.
- Remove the 6 screws from the lamp unit in question.
- Remove the cover (item 14 or 16).
- Remove 4 refl ector clamps.
- Remove the refl ector and take the lamp from the
holder.
NB: When checking or replacing HPA lamps, pay
attention to the following:
a. HPA lamps only start burning when they have cooled
down suffi ciently.
b. Never touch a lamp with your fi ngers. Clean the lamp
with a cloth moistened with alcohol, if necessary.
c. After assembly the glass fi lter should be free from
fi nger prints and dust. Clean the glass fi lter with a
cloth moistened with alcohol, if necessary.
d. New HPA lamps may show colour differences. This
is not a defect, but a characteristic phenomenon of
lamps of this type. The discolourations disappear
after a short period of use.
e. Always use protecting goggles when looking in the
direction of burning lamps.
7. GAS SPRING (item 17)
- Let the radiation part slowly rise from its transport
position.
- Hinge the radiation units outwards and remove a
decorative cap and spring fi x at C.
- Now push the radiation part back into transport
position.
- Use a plastic hammer to tap the pin at C outwards.
NB: CONTINUE TO EXERT PRESSURE ON THE
STAND.
- Hinge the radiation units inwards again and raise the
stand slowly by means of the handle.
- Now turn the stand and the radiation part through so
far that the radiation units rest on the fl oor.
- The gas spring is now unloaded so that pin (D) can
be easily removed.
- Assemble the new gas spring, the protecting bracket
and cover and press the pin (D) back in place again.
- Lift the radiation part by its handle and check whether
the gas spring with pin (E) is correctly supported in
the fork of the hinged part.
- Press the hinged part against the spring pressure,
moving the radiation part along at the same time until
the whole unit is in horizontal position again.
- Continue to exert pressure and hinge the radiation
units outwards.
- Assemble the pin at C.
- Put the appliance in operating position, and assemble
the remaining clamps.
8. POWER PCB (item 33)
- Pull the mains plug out of the wall socket.
- Remove the cover (item 32, see under .1).
- Replace the power PCB and connect all connectors.
- Place the cover on the base. The display of the
remote control will now show error code E06 or E05.
- This indicates that the power PCB still needs to
be programmed (code A00) for use in the HB950
according to the input in the table.
The following fault codes have been defi ned:
E01 - Safety circuit interrupted
This code will appear on the display for 5
seconds, while the beeper produces a loud beep.
Check whether all fans work or whether any UV
fi lter is missing, broken or damaged.
E02 - Safety relay does nor work according to
specifi cation
Replace the power module (item 33).
E03 / Fault in microprocessor
E04 - Replace the power module (item 33).
E05 / Application code not programmed
E06 - This only occurs in case of a new power
module supplied by Service.
Program the application code, beginning at
line 1, step 3.
