Connections on creda 31378, machine to AC CCT on display panel.
Some one has removed the wiring on the AC power Circuit located in the display panel. I don't know for sure which is which. There are 4 wires that attach to the board, and 2 that attach to an options switch ( due to location of wires that's easy to work out ). I've mocked up a CCT diagram andbelieve the connections are as follows (numbers on the board). '2' is live brown+white (relay switches power to 3), '1' is neutral blue (circuit from '2' through r1 r9 d1 to neutral), 3 is black since power needs to be switched in that direction, the last on fartherest away, is an led indicator which to be honest confuses me. I won't power up until I'm sure (POW!) Help please!
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Re: Connections on creda 31378, machine to AC CCT on...
As far as I know with this model you should have one BLUE wire and a 'double' RED wire, that should go to the 'left
hand thermostat'(THE ONE WITH THE RED DOT ON IT) And a single ORANGE
and a single BROWN that should go to the 'right hand thermostat
The single orange and the single brown go to the right hand thermostat.
The double black/orange and the single blue go to the left hand thermal cut out (that has a painted red dot on it *)
The thermal cut out device is there to protect the element so by it
blowing last time should mean the element is OK. It most likely went
due to someone turning the dryer off without allowing it to complete
the last 10 minutes of the cycle (cool down period)
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You need to trace out the circuit. Find out which receptacles, and switches are not working. Starting at the panel, following the branch circuit that doesn't work and check all the wiring connections. Make sure the power is off before you check these connections for safety sake. NO SHORTCUTS!
If this is a Zanussi washer then
E90 indicates a communication error between the interface board (control panel) and the main circuit board. Unplug the machine from the power! and take the top off the machine, if you stand in front of the machine on the left side you should see the main circuit board along with a blue multi-wire cable going from it to the control panel (interface board). There is most likely a poor connection at one end or the other or maybe even both. This will generate an E90 error code. You need to remove the control panel by removing the screws located behind the soap drawer and also the plastic clips located along the top rail, disconnect the blue cable from each board one at a time and then plug back in making sure to firmly seat the connectors. These can become loose from miniscule vibrations from the machine operating. Put everything back together plug back in and it should work.
You can put the unit into diagnostics (press the following keys in order within 6 seconds HEATED DRY, NORMAL, HEATED DRY, NORMAL all the lights will come on and it will start a diag cycle) and see if it recovers. If not, you are looking at a electronic control, and yes you CAN change the part yourself.
TURN OFF THE POWER TO THE RANGE THEN LOCATE THE SCREWS AROUND THE DISPLAY PANEL REMOVE ALL SCREWS AND OPEN UP THE PANEL CHECK WIRES FOR ANY WARE OR TARE ALSO CHECK THE ELECTRICAL CONNECTIONS ARE GOOD .
Inside silly. ;) (sorry couldn't resist) Unplug, Remove the right hand plastic side panel. Ground yourself to discharge possible static electricity, Remove the 5 screws holding the cct board. Battery is on the cct board. Be careful of damaging wires when reassembling.
to fix the key you need a screw driver to pry the to halves of the key casing apart (make sure you have a spare set) taking care not to damage the internal electronic component board, because this electronic circuit board (cct bd) is powered by a 3 volt battery (which is also used to run the bios on computers) can be purchased for about 3 dollars from **** smiths, you need a small pair of side cutters to cut the metal tag connections between the battery and the cct bd taking care to note which is the positive and negative tracks on the cct bd, then using a soldering iron desolder the metal tag connections from the cct bd take care not to damage the copper tracks on the cct bd, try to use the proper desoldering technique (the copper gauze or a suction gun) to remove excess solder from the metal tags because they need to be removed, when the tags are removed from the cct bd there is a small hole on each copper track for the positive and negative reconnections to the newly purchased battery, use light audio speaker wire, black for negative and red for positive, presolder the wire ends first then cut the bear ends down and solder to the tracks taking care not to cross tracks with the solder, then shorten the both positive and negative lengths so the battery and the wires will fit back into the casing of the key and resolder the wire connections to the battery, before closing the key casing test the key to see if the immobiliser is operating then relocate the ring seal and close the two casing together with tape or reglue with arildite glue. if your soldering technique is not up to scratch practice your technique until you feel confident and this should save you about $100