BEHMOR 1600AB Coffee Roaster Instruction Manual

BEHMOR 1600AB Coffee Roaster

Est time: ~ 45-60 minutes.

UNPLUG THE ROASTER!
The replacement of the front panel and power board is not a difficult procedure it is merely is time consuming. You will be removing the left and right side panels along with top panel. In the process you will remove in total 30 screws.

Before starting the procedure

Before starting the procedure familiarize yourself with the written portion and photos
Recommendation: As you remove a panel, place the screws for that panel inside its open cavity of that panel to prevent losing or mixing with others. 21 screws will be the same size (some stainless steel others black), and 5 smaller (inside door screws). Tools (Photo A): one short Philips headscrewdriver, one long (8-9”) Philips head screw driver (Highly recommended magnetic tipped), pliers (needle nose are great) and wire cutters for snipping a wire tie- TAKE CARE TO NOT CUT ACTUAL WIRING. Short Philips Head should have a flattened (NOT POINTED- pointed will strip screw head) tip. The ideal short Philips head is a #2 x 4” narrow handle.

The roaster (see photo B) has three main panels each with varying number of screws holding them in place. Remove them in the following order.

• Right side panel- 6 screws. Three screws under the panel lip, three on the angle and back. Once removed slide from back to front.** Side Panel fan is attached so remove slowly, then disconnect DC power wire from PCB
• Left side panel- 7 screws. Same as right side with an additional screw inside by the chamber door. To locate open the chamber door and look just inside the door opening, left side. The screw just inside the door is smaller than the rest. Be sure to not mix. Once removed slide the panel from back to front
• Top Panel- 8 screws. Four screws are located under the lip of the door opening. The screws located under the lip are smaller than others use Small #2 Philips head as noted above- Do Not mix. Four screws located along the top back. Wait to remove the top (see below).

To remove the top panel you must first straighten a “T” shaped clip (see Photo C- black arrow) so it slides through a guide (same photo- yellow arrow). To straighten the “T”, take a set of pliers, look inside the top right side of the roaster, just above the control panel. You will note the “T” has been twisted/moved to be at an angle. Take the pliers and move the end portion of the “T” so that it is flat and horizontal. This will enable the flange to slide through the guide Once done, rotate the top panel (photo D), so the left side swings out, then gently slide the right side free from the guide. When doing this note how it came out so during reassembly you repeat in reverse. You now should have a roaster as shown in Photo E.

Our next step is to remove the panel itself. This will be done by removing 5 screws (Photo F- yellow arrows) and disconnecting a ribbon/flat cable and the power cable (Photo G- yellow arrows). You will need the long Philips head screw driver (highly recommend magnetized tip-This could prevent losing screws). Before removing the front panel, take a moment and look at the front of the roaster specifically the gap between door and panel. You’ll refer back to this mental note later. Start with the three screws that go along the side of the roaster. We suggest removing the lower one #3 (Photo F) then working up to #1 . Now the bottom two screws #4 and #5. Start with #4 then #5. For better understanding of their position see Photo I, # 4 and # 5.

Carefully lay the panel flat so you can disengage the ribbon. If there is glue, it is easily dis-lodged/removed. Disconnect the cable and wire.

Before doing anything further take special note of the pin (rests in a little notch) for the door (Photo H) and the groove (yellow box) on the front panel’s side. When replacing the panel you will need to make sure the pin slides into the groove properly. One item that helps ensure this at the base of the panel you have a square opening (Photo I) that fits over a plastic protrusion (Photo I-yellow square) on the base of the roaster.

Now to remove the power board. There are 2 versions, AB Plus and original and 1600 Plus. First step is dis-connect all the connectors. We found the “spade” can require pressing a tiny tab as noted in the following jpeg. In some instances there is a black cover over the spade but the tiny tab can visibly be seen and depressed as noted in the jpeg.

With all wires disconnected- remove the 4 screws located in each corner holding PCB to frame- now remove PCB

• Given the new upgrade kits design, some connections will no longer be used. Those connections are 8, 9 and 10.
• AB Power boards have connections with screw mounts …
• 1600 / 1600 Plus Power boards have spade adapters (included in the kit-need to be attached to screw mounts) to connect / adapt to new boards.

For 3 pc Kits- now is the time to install the new motor
To remove old motor, locate the cylinder motor sleeve inside the roasting chamber there are 2 screws as seen. Simply remove the screws, taking care to also save the tension washers for replacement. Once screws are removed, go to motor inside the electronics area, twist about 45 degrees and the motor comes out. Now take the new motor and install. Tip, align one hole of the motor bracket to the chamber hole and insert screw w/ washer and tighten about 90% and then do other screw.

All PCBs are susceptible to static discharge, to insure you do not accidentally zap your board’s components:
Before you touch anything inside the roaster, put your hand(s) briefly on a metal object to dissipate any built-up static. Repeat as you go through this process before touching the new PCBs as old are replaced as a precaution.

AVOID CONFUSION
Take a PHOTO(s) of the OLD PCB BEFORE DISCONNECTING WIRES, especially the power connections 16, 17 and 18.

Installation

1600/ 1600 Plus Spade Connections (Top PCB)- AB Screw Mounts (Bottom)

Spade Clip release

Motor location Mounting

For 1600 and 1600 Plus – ONLY

Behmor 1600/1600 Plus spade clips

• There are 2 spade clip types- a single spade for position ACL and double for position ACN
• Easiest to hold as shown- note order of spade, washer and screw

As you feel it ighten to tension washer, go slow to insure clip stays in position as shown.

In your 1600/ 1600 Plus kit you will receive spade adapters to allow you to connect spade power/ neutral connections. The items are 2 screws, 2 tensions washers and 2 types of adapters- 1 single goes to ACL, 1 Double to ACN. Attach as shown above.

Original 1600 PCB Wire Color Code

Original 1600 PCB Wire Color Code/ Connections (new PCB location)

Small Clips

1. Dbl Red Wire- Thermister connected to DC Fan housing (New #3)

2. Dbl. White Wire – from Front PCB panel- DC Motor sensor New DISCONTINUED

3. Dbl. White Wire- Exhaust Channel Thermister (New #1)

4. Dbl. Yellow – Thermister connected to roasting chamber wall (New #2)

5. Red/Black mix- DC Fan power connection (New #4)

6. Side Panel DC fan socket (New #5)
   Larger Clips

7. Black/Red mix – Power to DC Motor (cylinder) (New #6)

8. Red/Burgundy/Green- Power from Transformer New DISCONTINUED

9. Dbl. Black- Transformer out New DISCONTINUED

10. Dbl. Red- Transformer in New DISCONTINUED
    Single Slip Female

11. Red- Scroll Fan ( bean cooling fan) (New #8)

12. Black- shiny- Interior Light (New #7)

13. Yellow- Draw Fan (exhaust-squirrel fan) (New #9)

14. Brown- Afterburners (New #10)

15. Blue- Quartz Elements (roasting) (New #11)

16. Black w/ covered clip –Power feed in (power L) (New #12)- to avoid confusion before disconnecting take a photo of 16, 17 and 18

17. Dbl. White- thermal sheath (common) – (New #13)

18. Black – bare clip (power N) – (New #13)
    Large Clip:

19. Data Feed Connection/ flat ribbon cable (New #14)

Upgrade Kit Replacement cont. 1600 Plus

Re-assembly

Now for reassembly which is doing for most part everything in reverse as before, with a few hints/tips on making things easier First step would be to reconnect and attach the new power board
First secure the new power PCB to the frame using the 4 screws from disassembly.

Next step is to reattach each wire as noted in the following:

PCB Wire Chart – Unattended w/ beeper

1. Double White Wire- Exhaust channel sensor (old board position #3) be sure connections are secure
2. Yellow wires- Wall Sensor (old board #4) be sure connections are secure
3. Red wires- Fan Housing Sensor (old board #1 position) be sure connections are secure
4. DC Fan 1 (attached to angled DC fan housing)
5. DC Fan 2 Side Panel
6. Motor Connection (red/black wires)
7. Light- single black wire spade connector
8. Scroll Fan Power – single red wire spade connector
9. Draw Fan Power- single yellow wire spade connector
10. Afterburner Power (Heat 2) – single brown wire spade connector
11. Quartz Elements (Heat 1) – single blue wire spade connector
12. Incoming Power AB systems red wire (AB eyelet w. screw connection / 1600 Plus Black wire- Spade adapter- old PCB 16)
13. Neutral/ Common – white wires all (AB eyelet w. screw connection/ 1600 Plus Spade adapters- old PCB 17 and 18)
14. Front Panel Connection- flat ribbon cable
15. Open. No Connection

Once all wires (except those noted as discontinued) are reconnected plug in the single connector from the front panel Now carefully while pressing the START button, plug in the roaster, looking at the display you should see r4.20 then it will scroll through a function check.

Now———————-Unplug the roaster !!!!!!!!.
If no, recheck all connections and retry. If yes, you saw a scrolling message proceed to the following Next replace to attach the new panel paying close attention to the pin and groove as noted previously (Photo H) and re-insert screw #1. Once you replaced screw #1 look at the front of the roaster and check the bottom area by the pin, then look upwards. Is the gap similar in spacing as before? If, No- remove screw #1 and redo.

If yes, plug in the roaster and re-test the PCB as described in the roast manual:
To ensure all functions are working properly press each button within each group in the following order: Press all Weight buttons starting with ¼, ½, to 1 noting time in the display changes. Next, Profiles starting with P1 through P5, noting changes on the display. Check light and finally cool

Now Test 2:
unplug the roaster- and as before while holding/ pressing Start- plug in your roaster then release Start. You should see a series of numbers and hear components (fans) and lights come on-

Did everything test OK?
If no ..
Recheck your two connections. Make sure everything is properly re-inserted. Plug in the roaster and retry. If you are without a display, unplug the roaster and contact us immediately at [email protected] Subject: front panel replacement.

If yes, let’s finish up. *** as before the new power PCB has a mechanical relay that when elements cycle makes a clicking sound- this is normal Start by re-inserting all the screws. Start with #5 to re-ensure the panel is properly in place, then do 4, 3 and 2.

Next for the top panel. —–Remember the “T” and guide as noted previously (Photo C)?
With the panel horizontal, gently insert the “T” through the guide and swing it around so that it lays flat on the top of the roaster. Do a visual check of the area on top of the control panel to ensure is it flat. If yes, bend the “T” so the panel is locked into place.

With the top panel in position, open the roaster’s door to start with the four small screws that are used for under the lip. If you’ve ever replaced a tire you know the lug nuts should be done in a specific order. Same logic is applied here. Do not tighten any screw all the way until all are in part way. The first screw should be top left, then top right, finally the middle two. Once they are part way seated, tighten them all in the same order. Following this procedure will ensure the panel is properly aligned for each screw.

Next the top panels back for screws, far left, far right then the middle areas. Lastly the two side panels. Left panel first (remember the small screw inside), then right side panel. Make sure in each instance you have all of the front and side guides going into their respective holes/openings. Don’t forget to reattach the side panel DC Fan.

Once everything is reassembled you need to set you control panel:
Have system unplugged, while holding plug in the roaster- 120 will be displayed, now unplug the roaster press/ hold then plug in, you’ll see a scrolling message that confirms again things are functioning as they should be.

If you get an error message on Start or temperature reading on A that stays at 32F please check sensor connections 1, 2 or 3

REMINDER:
ALWAYS UNPLUG YOUR ROASTER BETWEEN USE- power line surges can destroy your electronics.

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