RAPIBREW FREDDA 1.0 User manual

AI Rapid Cold Brew Maker
Service Guide

Contents ..........................................................................................................................1
Before Getting Started ....................................................................................................1
Tools/Equipment Needed .........................................................................................1
Pre-Maintenance Preparation ...................................................................................2
Diagnosing the Problem ..................................................................................................5
Maintenance Procedures ..............................................................................................11
Installing the Top Inner Cover .................................................................................11
Removing the Rear Cover ........................................................................................11
Connecting the Antenna .........................................................................................14
Replacing the Antenna Module ...............................................................................14
Replacing the Mainboard ........................................................................................18
Replacing the Power Board .....................................................................................20
Replacing the Electromagnetic Valve ......................................................................21
Cleaning the Electromagnetic Valve ........................................................................23
Replacing the Pump ................................................................................................25
Opening the Middle Console Cover ........................................................................28
Replacing the Middle Console Sensor Board ..........................................................30
Replacing the Lower Pot Cover Motor ....................................................................31
Correcting the Lower Pot Cover Pressure ...............................................................33
Securing the Lower Pot Cover Motor ......................................................................35
Cleaning/Replacing the Liquid Intake/Output Tubes ..............................................36
Contents

Removing the Top Cover .........................................................................................38
Replacing the Hinge Board ......................................................................................42
Replacing the Stirrer Motor ....................................................................................42
Securing the Stirrer Motor ......................................................................................46
Replacing the Plastic Rotary Head ...........................................................................47
Replacing the Button Board ....................................................................................49
Removing the Hinge ................................................................................................50
Replacing the 6-Pin Stirrer Motor Cable .................................................................51
Replacing the 12-Pin Button Board Cable ...............................................................52
Replacing the Lower Pot Sensor Board ...................................................................53
Replacing the 12-Pin Daughter Board Cable ...........................................................55
Cable Routing ..........................................................................................................59
Stirrer Motor and Button Board Cable ..............................................................59
12-Pin Daughter Board Cable ............................................................................61
Lower Pot Cover Motor Cable ...........................................................................63

1
Before Getting Started
Read the following sections in their entirety before you get started on any maintenance
procedures to ensure that the entire process proceeds smoothly and without any
issues.
Tools/Equipment Needed
Ensure that you have the following tools at your disposal.
•One Phillips head screw driver in the following sizes each:
•#1 5mm x 8” / Length: 290mm / Handle Length: 85mm
•#2 6mm x 8” / Length: 290mm / Handle Length: 85mm
•One soldering gun
•One utility knife
•One pair of needle-nose pliers
•Several spare plastic cable ties
•One plastic cushion or mat
•One hot glue gun and hot glue stick.
•One tube of polyurethane multi-material composite adhesive (as shown in the
image below)

2
Pre-Maintenance Preparation
Prior to starting any maintenance procedures ensure that you have done the following:
1. Fill the upper pot with clean water and then start the self-cleaning mode on the
machine to clean its tubes.
2. Power off the machine.
3. Unplug the machine from any power outlet.
4. Cover your workspace with the plastic cushion or mat and perform all procedures
on it.
5. Remove the stirrer from the top cover.
6. Remove the upper and lower pot from the machine.

3
7. Check if the O-ring is installed in the middle console cover by sticking your finger
into the opening at the center of the ground tray and feel if the O-ring seal is in
place in its compartment inside the ground tray. If the O-ring is out of place or
dislodged, please contact the vendor for a replacement O-ring.
8. Ensure that the following four screws at the base panel of the machine are secured
tightly.

4
9. Anytime the rear cover is removed during maintenance procedures, immediately
ensure that the following four screws inside the machine are secured tightly.

5
Diagnosing the Problem
The table below identifies issues with the machine that may require maintenance along
with the corresponding procedures which may help resolve the issue.
When you encounter any of the issues below, proceed with the first suggested solution
listed. Once you have completed the respective procedure, check to see if the issue is
resolved. If the issue still persists, proceed with the subsequent solution listed and so on
until the issue is resolved.
If the issue still persists after all the solutions have been attempted, please contact the
vendor for further assistance.
Issue Possible Cause Suggested Solution
The power button
is unresponsive.
1. The mainboard is faulty.
2. The button board is
faulty.
3. The 12-pin button board
cable is faulty.
4. The power board is
faulty.
1. Replace the mainboard. See
“Replacing the Mainboard” on
page 18 for instructions.
2. Replace the button board. See
“Replacing the Button Board”
on page 49 for instructions.
3. Replace the 12-pin button
board cable. See “Replacing the
12-Pin Button Board Cable” on
page 52 for instructions.
4. Replace the power board. See
“Replacing the Power Board”
on page 20 for instructions.
When the
machine is
operating, the
electromagnetic
valve can be heard
working but no
coffee drips into
the lower pot.
1. The electromagnetic
valve is clogged with
coffee grounds.
2. The electromagnetic
valve is faulty.
1. Clean the electromagnetic
valve. See “Cleaning the
Electromagnetic Valve” on
page 23 for instructions.
2. Replace the electromagnetic
valve. See “Replacing the
Electromagnetic Valve” on
page 21 for instructions.

6
The lower pot
cover does not
descend properly.
1. The lower pot cover
motor is not installed
correctly.
2. The lower pot cover
motor is faulty.
3. The mainboard is faulty.
1. Ensure that the lower pot cover
motor is secured properly. See
“Securing the Lower Pot Cover
Motor” on page 35 for
instructions.
2. Replace the lower pot cover
motor. See “Replacing the
Lower Pot Cover Motor” on
page 31 for instructions.
3. Replace the mainboard. See
“Replacing the Mainboard” on
page 18 for instructions.
When the pump is
supposed to be
operating, it does
not fluctuate
between a hight
and low frequency
so it does not
sound like there is
any suction
occurring.
1. The lower pot has not
been properly pressure
sealed.
2. The lower pot cover
motor is faulty.
1. Correct the lower pot cover
pressure. See “Correcting the
Lower Pot Cover Pressure” on
page 33 for instructions.
2. Replace the lower pot cover
motor. See “Replacing the
Lower Pot Cover Motor” on
page 31 for instructions.
The stirrer is not
rotating.
1. Plastic rotary head is
faulty.
2. The stirrer motor is not
installed correctly.
3. The 6-pin stirrer motor
cable is faulty.
4. The mainboard is faulty.
1. Replace the plastic rotary head.
See “Replacing the Plastic
Rotary Head” on page 47 for
instructions.
2. Ensure that the stirrer motor is
secured properly. See “Securing
the Stirrer Motor” on page 46
for instructions.
3. Replace the 6-pin stirrer motor
cable. See “Replacing the 6-Pin
Stirrer Motor Cable” on
page 51 for instructions.
4. Replace the mainboard. See
“Replacing the Mainboard” on
page 18 for instructions.
Issue Possible Cause Suggested Solution

7
The pump is not
working.
1. The pump is faulty.
2. The mainboard is faulty.
1. Replace the pump. See
“Replacing the Pump” on
page 25 for instructions.
2. Replace the mainboard. See
“Replacing the Mainboard” on
page 18 for instructions.
The start button
does not light up.
1. The upper and lower pot
are not placed correctly
into their
compartments.
2. The 12-pin button board
cable is faulty.
3. The button board is
faulty.
1. Place the upper and lower pots
correctly into their
compartments.
2. Replace the 12-pin button
board cable. See “Replacing the
12-Pin Button Board Cable” on
page 52 for instructions.
3. Replace the button board. See
“Replacing the Button Board”
on page 49 for instructions.
The start button
lights up but is
unresponsive.
1. The 12-pin button board
cable is faulty.
1. Replace the 12-pin button
board cable. See “Replacing the
12-Pin Button Board Cable” on
page 52 for instructions.
Issue Possible Cause Suggested Solution

8
The upper pot
light does not light
up.
1. The top inner cover is
not installed.
2. The upper pot is not
fully placed into the
compartment.
3. The four screws for the
middle console cover
are not secured
correctly.
4. The hinge board is
faulty.
5. The middle console
sensor board on the
faulty.
6. The 12-pin daughter
board cable is faulty.
1. Install the top inner cover onto
the top cover. See “Installing
the Top Inner Cover” on
page 11 for more instructions.
2. Place the upper pot correctly
into its compartment.
3. Ensure that the four screws for
the middle console cover are
only tightened so that the
heads of each screw are level
with its adjacent surface and
are not screwed too tightly. See
step 1 in the “Opening the
Middle Console Cover” on
page 28 for more instructions.
4. Replace the hinge board. See
“Replacing the Hinge Board” on
page 42 for instructions.
5. Replace the middle console
sensor board. See “Replacing
the Middle Console Sensor
Board” on page 30 for
instructions.
6. Replace the 12-pin daughter
board cable. See “Replacing the
12-Pin Daughter Board Cable”
on page 55 for instructions.
The lower pot
light does not light
up.
1. The lower pot sensor
board is faulty.
2. The 12-pin daughter
board cable is faulty.
1. Replace the lower pot sensor
board. See “Replacing the
Lower Pot Sensor Board” on
page 53 for instructions.
2. Replace the 12-pin daughter
board cable. See “Replacing the
12-Pin Daughter Board Cable”
on page 55 for instructions.
Issue Possible Cause Suggested Solution

9
The Wi-Fi light
does not light up.
1. The Wi-Fi antenna is not
connected properly.
2. The Wi-Fi module is
faulty.
3. The 12-pin button board
cable is faulty.
4. The button board is
faulty.
1. Connect the antenna. See
“Connecting the Antenna” on
page 14 for instructions.
2. Replace the mainboard. See
“Replacing the Mainboard” on
page 18 for instructions.
3. Replace the 12-pin button
board cable. See “Replacing the
12-Pin Button Board Cable” on
page 52 for instructions.
4. Replace the button board. See
“Replacing the Button Board”
on page 49 for instructions.
The red light
keeps flashing,
1. The machine was forced
to power off in the
middle of the previous
session, so the pressure
in the lower pot is not at
the proper level during
the current powering on
process and as a result
the machine is in the
process of readjusting
the pressure.
2. The pressure sensor is
faulty.
1. Wait for some time, once the
middle console/lower pot
cover elevates, the machine
will working properly.
2. Replace the mainboard. See
“Replacing the Mainboard” on
page 18 for instructions.
Issue Possible Cause Suggested Solution

10
The red light is
solid red.
1. The power current for
the stirrer motor is too
high.
2. The power current for
the lower pot cover
motor is too high.
3. The power current for
the pump is too high.
4. The power current for
the electromagnetic
valve is too high.
1. Replace the stirrer motor. DO
NOT replace the mainboard.
See “Securing the Stirrer
Motor” on page 46 for
instructions.
2. Replace the lower pot cover
motor. DO NOT replace the
mainboard. See “Replacing the
Lower Pot Cover Motor” on
page 31 for instructions.
3. Replace the pump. DO NOT
replace the mainboard. See
“Replacing the Pump” on
page 25 for instructions.
4. Replace the electromagnetic
valve. DO NOT replace the
mainboard. See “Replacing the
Electromagnetic Valve” on
page 21 for instructions.
Issue Possible Cause Suggested Solution

11
Maintenance Procedures
Installing the Top Inner Cover
Align the hole in the top inner cover to the knob for the stirrer and then place the top
inner cover onto the top cover so that the magnets lock it in place.
Removing the Rear Cover
1. Remove the single M3x14 round Phillips head self-tapping Nylok screw and two
M3x6 round Phillips head machine-tapping screws securing the bottom cap in place
and then remove the bottom cap from the rear cover.

12
2. Remove the two M2.5x6 round Phillips head machine-tapping screws securing the
rear cover in place.
3. Lift the rear cover upwards to release it from the machine.
!
CAUTION: DO NOT attempt to completely remove the cover at this point, as
this will damage the antenna cable. Only lift the cover enough to
release it from the machine (within a 10cm range).
√
√
NOTE: If the cover is secured too tightly to the machine and you are unable to
lift it, push it upwards from its bottom side.

13
4. Carefully separate the rear cover slightly from the machine.
!
CAUTION: DO NOT pull or attempt to completely remove the cover at this
point, as this will damage the antenna cable.
5. Disconnect the (A) 6-pin light board cable and (B) the wireless antenna cable from
the mainboard and then remove the rear cover from the machine.
To re-install the rear cover, reverse the steps above.
A
B

14
Connecting the Antenna
1. Follow steps 1 - 4 in “Removing the Rear Cover” on page 11.
2. Ensure that the antenna cable is properly connected to the connector on the
mainboard.
3. Reverse the steps in “Removing the Rear Cover” on page 11 to re-install the rear
cover.
Replacing the Antenna Module
1. Remove the rear cover from the machine. See “Removing the Rear Cover” on
page 11 for instructions.
2. Insert a utility knife into the bottom side of the cosmetic logo sticker on the status
light panel.

15
3. Work your way around the edges of the cosmetic logo sticker with the utility knife
to detach its adhesive from the light panel.
4. Peel off the cosmetic logo sticker from the light panel.

16
√
√
NOTE: When re-adhering the cosmetic logo sticker to the light panel, ensure
that the four protrusions on the under side of the sticker fit into the
four holes on the panel.
5. Remove the four M2.5x6 round Phillips head machine-tapping screws securing the
light panel in place and then remove the panel from the rear cover.
√
√
NOTE: When re-installing the light panel to the rear cover, ensure that the
four alignment holes on the panel are facing the outer side of the rear
cover.